Contact Info
Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Email: schalk@unf.edu
Website: @unf
Electrode
Citations 4
"Chalcogenide-based All-solid-state Thin Electroplated Ion-selective Membrane For Mercury(II) Flow Injection Determinations"
Anal. Chim. Acta
1995 Volume 300, Issue 1-3 Pages 133-141
Notice (8): Undefined variable: uid [APP/View/Elements/citation.ctp, line 40]M. Neshkova* and E. PanchevaCode Context?><?phpif($uid!='') {$viewFile = '/home/stuchalk/public_html/fad/app/View/Elements/citation.ctp' $dataForView = array( 'data' => array( 'Technique' => array( 'id' => '0309', 'label' => 'Electrode', 'level1' => 'Electrode', 'level2' => 'ion selective', 'level3' => 'mercury', 'level4' => '', 'level5' => '', 'synonyms' => 'Ion selective electrode,ISE', 'champ' => '', 'total' => '4', 'updated' => '0000-00-00 00:00:00', 'name' => 'Electrode, ion selective, mercury', 'nametotal' => 'Electrode, ion selective, mercury**4', 'first' => 'E' ), 'Citation' => array( (int) 0 => array( [maximum depth reached] ), (int) 1 => array( [maximum depth reached] ), (int) 2 => array( [maximum depth reached] ), (int) 3 => array( [maximum depth reached] ) ) ), 'c' => array( 'id' => '006063', 'authors' => 'Neshkova, M.T.;Pancheva, E.M.', 'authorsweb' => 'M. Neshkova* and E. Pancheva', 'title' => 'Chalcogenide-based all-solid-state thin electroplated ion-selective membrane for mercury(II) flow injection determinations', 'journal' => 'Anal. Chim. Acta', 'journal_id' => '0584', 'fadid' => 'ANCA1995V0300P00133', 'year' => '1995', 'volume' => '300', 'issue' => '1-3', 'startpage' => '133', 'endpage' => '141', 'type' => 'Journal Article', 'analytes' => ';1447;', 'matrices' => '', 'techniques' => ';0309;0127;0400;', 'keywords' => ';0217;0436;', 'abstract' => 'A Te-doped silver chalcogenide membrane of general formula Ag2+δSe1-xTex was prepared by electrochemical deposition on a Pt cathode. The electrode was placed in a FIA system and its response to different concentrations of Hg(II) was evaluated, with a carrier comprising 0.01 M KNO3/0.01 M HNO3/0.3 µM-Hg(NO3)2 at a flow rate of 5 ml/min. The membrane had a primary response to Ag(I) and a secondary response to Hg(II); the mechanism and kinetics of these responses and the observed chemical amplification of the signal are discussed. The linearity of the detector extended over the Hg(II) concentration range 1 µM-1 mM, giving a double-Nernstian slope of the calibration graph and an electrode function of 59 mV/decade. For a sample injection volume of 100 µL and a dispersion coil length of 70 cm, the sample throughput was 65-70/h. The detector was stable for at least 14 days and showed good selectivity (only chloride and strong oxidants interfered). It measured total rather than free Hg(II), so could not be used in speciation studies.', 'language' => 'English', 'updated' => '2020-12-28 11:25:15', 'sjccheck' => 'Yes', 'sjccheckdate' => '0000-00-00 00:00:00', 'hits' => '8', 'urlcheck' => '2014-10-11 16:13:57', 'urlcheckcode' => 'HTTP/1.1 302 Found', 'pauthor_id' => '01193', 'pauthor' => '!Neshkova, M.T.', 'address' => 'pau', 'email' => 'pau', 'notes' => null, 'url' => '10.1016/0003-2670(94)00375-V', 'urltype' => 'doi', 'gotpdf' => 'yes', 'partial' => 'no', 'notanalyte' => '', 'citation' => ''Chalcogenide-based all-solid-state thin electroplated ion-selective membrane for mercury(II) flow injection determinations', Anal. Chim. Acta, 1995 300(1-3) 133-141', 'firstchar' => 'C', 'twochars' => 'Ch', 'CitationsTechnique' => array( 'id' => '002602', 'citation_id' => '006063', 'technique_id' => '0309' ), 'Analyte' => array( (int) 0 => array( [maximum depth reached] ) ), 'Matrix' => array(), 'Keyword' => array( (int) 0 => array( [maximum depth reached] ), (int) 1 => array( [maximum depth reached] ) ) ), 'i' => (int) 0 ) $data = array( 'Technique' => array( 'id' => '0309', 'label' => 'Electrode', 'level1' => 'Electrode', 'level2' => 'ion selective', 'level3' => 'mercury', 'level4' => '', 'level5' => '', 'synonyms' => 'Ion selective electrode,ISE', 'champ' => '', 'total' => '4', 'updated' => '0000-00-00 00:00:00', 'name' => 'Electrode, ion selective, mercury', 'nametotal' => 'Electrode, ion selective, mercury**4', 'first' => 'E' ), 'Citation' => array( (int) 0 => array( 'id' => '006063', 'authors' => 'Neshkova, M.T.;Pancheva, E.M.', 'authorsweb' => 'M. Neshkova* and E. Pancheva', 'title' => 'Chalcogenide-based all-solid-state thin electroplated ion-selective membrane for mercury(II) flow injection determinations', 'journal' => 'Anal. Chim. Acta', 'journal_id' => '0584', 'fadid' => 'ANCA1995V0300P00133', 'year' => '1995', 'volume' => '300', 'issue' => '1-3', 'startpage' => '133', 'endpage' => '141', 'type' => 'Journal Article', 'analytes' => ';1447;', 'matrices' => '', 'techniques' => ';0309;0127;0400;', 'keywords' => ';0217;0436;', 'abstract' => 'A Te-doped silver chalcogenide membrane of general formula Ag2+δSe1-xTex was prepared by electrochemical deposition on a Pt cathode. The electrode was placed in a FIA system and its response to different concentrations of Hg(II) was evaluated, with a carrier comprising 0.01 M KNO3/0.01 M HNO3/0.3 µM-Hg(NO3)2 at a flow rate of 5 ml/min. The membrane had a primary response to Ag(I) and a secondary response to Hg(II); the mechanism and kinetics of these responses and the observed chemical amplification of the signal are discussed. The linearity of the detector extended over the Hg(II) concentration range 1 µM-1 mM, giving a double-Nernstian slope of the calibration graph and an electrode function of 59 mV/decade. For a sample injection volume of 100 µL and a dispersion coil length of 70 cm, the sample throughput was 65-70/h. The detector was stable for at least 14 days and showed good selectivity (only chloride and strong oxidants interfered). It measured total rather than free Hg(II), so could not be used in speciation studies.', 'language' => 'English', 'updated' => '2020-12-28 11:25:15', 'sjccheck' => 'Yes', 'sjccheckdate' => '0000-00-00 00:00:00', 'hits' => '8', 'urlcheck' => '2014-10-11 16:13:57', 'urlcheckcode' => 'HTTP/1.1 302 Found', 'pauthor_id' => '01193', 'pauthor' => '!Neshkova, M.T.', 'address' => 'pau', 'email' => 'pau', 'notes' => null, 'url' => '10.1016/0003-2670(94)00375-V', 'urltype' => 'doi', 'gotpdf' => 'yes', 'partial' => 'no', 'notanalyte' => '', 'citation' => ''Chalcogenide-based all-solid-state thin electroplated ion-selective membrane for mercury(II) flow injection determinations', Anal. Chim. Acta, 1995 300(1-3) 133-141', 'firstchar' => 'C', 'twochars' => 'Ch', 'CitationsTechnique' => array( [maximum depth reached] ), 'Analyte' => array( [maximum depth reached] ), 'Matrix' => array([maximum depth reached]), 'Keyword' => array( [maximum depth reached] ) ), (int) 1 => array( 'id' => '006641', 'authors' => 'Yang, X.;Hibbert, D.B.;Alexander, P.W.', 'authorsweb' => 'Xinhao Yang, D. Brynn Hibbert* and Peter W. Alexander', 'title' => 'Flow injection potentiometry by poly(vinyl chloride)-membrane electrodes with substituted azacrown ionophores for the determination of lead(II) and mercury(II) ions', 'journal' => 'Anal. Chim. Acta', 'journal_id' => '0584', 'fadid' => 'ANCA1998V0372P00387', 'year' => '1998', 'volume' => '372', 'issue' => '3', 'startpage' => '387', 'endpage' => '398', 'type' => 'Journal Article', 'analytes' => ';1360;1449;', 'matrices' => '', 'techniques' => ';0400;0132;0156;0305;0309;', 'keywords' => ';0302;0043;0110;', 'abstract' => 'A flow cell with a poly(vinyl chloride) (PVC) neutral-ionophore liq.-membrane ion-selective electrode was developed for flow injection potentiometry (FIP). The flow system was optimized and five substituted azacrown ethers: 7,16-dithenoyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (DTODC), 7,16-di-(2-thiopheneacetyl)-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (DTAODC), 7,16-dithenyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (DTDC), 1,10-dioxa-4,7,13,16-tetraazacyclooctadecane (TC) and 4,7,13,16-tetrathenoyl-1,10-dioxa-4,7,13,16-tetraazacyclooctadecane (TTOTC) synthesized and studied as the ionophores in Pb2+ (DTAODC, TTOTC) and Hg2+ (DTDC, DTODC, TC, TTOTC) selective electrodes. The short contact times between analyte and ionophore in FIP allow the measurement of a strongly complexing ion such as Hg2+ that sats. the electrodes in batch anal., or in continuous-flow anal. that comes to a steady state. For the mercury-selective electrodes with ionophores with amide functional groups (TTOTC and DTODC) a carrier of 10 mM potassium nitrate increases the speed of response and recovery to baseline. The linear calibration range for a DTAODC lead-selective electrode was pPb = 2.0 to 5.0 with a slope of 32.5 mV decade-1 and for a TTOTC mercury-selective electrode, pHg = 3.0 to 5.5 with a slope of 28.4 mV decade-1. Highly reproducible measurements were obtained (relative standard deviation <2%) at a flow rate of 3.0 mL min-1 giving a typical throughput of 40 samples h-1 for Pb2+ and 30 samples h-1 for Hg2+.', 'language' => 'English', 'updated' => '2020-12-28 11:25:15', 'sjccheck' => 'Yes', 'sjccheckdate' => '0000-00-00 00:00:00', 'hits' => '7', 'urlcheck' => '2014-10-11 16:28:21', 'urlcheckcode' => 'HTTP/1.1 302 Found', 'pauthor_id' => '01010', 'pauthor' => '!Hibbert, D.B.', 'address' => 'pau', 'email' => 'pau', 'notes' => null, 'url' => '10.1016/S0003-2670(98)00382-1', 'urltype' => 'doi', 'gotpdf' => 'yes', 'partial' => 'no', 'notanalyte' => '', 'citation' => ''Flow injection potentiometry by poly(vinyl chloride)-membrane electrodes with substituted azacrown ionophores for the determination of lead(II) and mercury(II) ions', Anal. Chim. Acta, 1998 372(3) 387-398', 'firstchar' => 'F', 'twochars' => 'Fl', 'CitationsTechnique' => array( [maximum depth reached] ), 'Analyte' => array( [maximum depth reached] ), 'Matrix' => array([maximum depth reached]), 'Keyword' => array( [maximum depth reached] ) ), (int) 2 => array( 'id' => '010513', 'authors' => 'Vlasov, Y.G.;Ermolenko, Y.E.;Kolodnikov, V.V.;Ipatov, A.V.;Al Marok, S.', 'authorsweb' => 'Yuri G. Vlasov, Yuri E. Ermolenko, Vasili V. Kolodnikov, Andrey V. Ipatov and Sadeg Al-Marok', 'title' => 'A mercury sensor for flow and batch-injection analyses', 'journal' => 'Sens. Actuat. B', 'journal_id' => '0646', 'fadid' => 'SNAB1995V0024P00317', 'year' => '1995', 'volume' => '24', 'issue' => '1-3', 'startpage' => '317', 'endpage' => '319', 'type' => 'Journal Article', 'analytes' => ';1447;', 'matrices' => '', 'techniques' => ';0309;0127;0426;', 'keywords' => ';0258;', 'abstract' => 'Two modifications of the flow and batch injection (BIA) methods (schematic given) were applied to an Hg ISE. The sensitive membranes were prepared from Ag8HgS2I6 (details given). The membranes equipped with a solid Ag contact were pressed and attached to PVC tubes with epoxy resin. The resulting sensors exhibited stable and reproducible behavior towards 1 µM- to 0.1 M Hg and the detection limit was 0.3 µM or 1 µM (BIA). BIA gave better reproducibility.', 'language' => 'English', 'updated' => '2020-12-28 11:25:15', 'sjccheck' => 'Yes', 'sjccheckdate' => '0000-00-00 00:00:00', 'hits' => '30', 'urlcheck' => '2014-10-12 09:25:10', 'urlcheckcode' => 'HTTP/1.1 302 Found', 'pauthor_id' => null, 'pauthor' => 'NA', 'address' => 'Department of Chemistry, Saint Petersburg State University, St. Petersburg 199034, Russia', 'email' => 'NA', 'notes' => null, 'url' => '10.1016/0925-4005(95)85069-4', 'urltype' => 'doi', 'gotpdf' => 'yes', 'partial' => 'no', 'notanalyte' => '', 'citation' => ''A mercury sensor for flow and batch-injection analyses', Sens. Actuat. B, 1995 24(1-3) 317-319', 'firstchar' => 'A', 'twochars' => 'A ', 'CitationsTechnique' => array( [maximum depth reached] ), 'Analyte' => array( [maximum depth reached] ), 'Matrix' => array([maximum depth reached]), 'Keyword' => array( [maximum depth reached] ) ), (int) 3 => array( 'id' => '013012', 'authors' => 'Gur'ev, I.A.;Kuleshova, N.V.', 'authorsweb' => 'I. A. Gur'ev and N. V. Kuleshova', 'title' => 'Flow injection determination of mercury with potentiometric detection', 'journal' => 'J. Anal. Chem.', 'journal_id' => '0798', 'fadid' => 'JACU1998V0053P00015', 'year' => '1998', 'volume' => '53', 'issue' => '1', 'startpage' => '15', 'endpage' => '18', 'type' => 'Journal Article', 'analytes' => ';1447;', 'matrices' => '', 'techniques' => ';0400;0127;0309;', 'keywords' => ';0043;0110;', 'abstract' => 'A version of flow injection determination has been developed for low concentrations of mercury in aqueous solutions; this version involves the sorption pre-concentration of mercury and its simultaneous transformation into anal. active species. A tetraiodomercurate liquid electrode selective for mercury iodide complexes was proposed as a detector.', 'language' => 'English', 'updated' => '2020-12-28 11:11:09', 'sjccheck' => 'No', 'sjccheckdate' => '0000-00-00 00:00:00', 'hits' => '19', 'urlcheck' => '2014-10-23 18:46:38', 'urlcheckcode' => 'HTTP/1.1 302 Object moved', 'pauthor_id' => null, 'pauthor' => 'NA', 'address' => 'Chemistry Faculty, Nizhni Novgorod State University, pr. Gagarina 23, Nizhni Novgorod, 603600 Russia', 'email' => 'NA', 'notes' => 'Not available on springer', 'url' => 'elibrary.ru/item.asp?id=13279333', 'urltype' => 'absurl', 'gotpdf' => 'no', 'partial' => 'no', 'notanalyte' => '', 'citation' => ''Flow injection determination of mercury with potentiometric detection', J. Anal. Chem., 1998 53(1) 15-18', 'firstchar' => 'F', 'twochars' => 'Fl', 'CitationsTechnique' => array( [maximum depth reached] ), 'Analyte' => array( [maximum depth reached] ), 'Matrix' => array([maximum depth reached]), 'Keyword' => array( [maximum depth reached] ) ) ) ) $c = array( 'id' => '006063', 'authors' => 'Neshkova, M.T.;Pancheva, E.M.', 'authorsweb' => 'M. Neshkova* and E. Pancheva', 'title' => 'Chalcogenide-based all-solid-state thin electroplated ion-selective membrane for mercury(II) flow injection determinations', 'journal' => 'Anal. Chim. Acta', 'journal_id' => '0584', 'fadid' => 'ANCA1995V0300P00133', 'year' => '1995', 'volume' => '300', 'issue' => '1-3', 'startpage' => '133', 'endpage' => '141', 'type' => 'Journal Article', 'analytes' => ';1447;', 'matrices' => '', 'techniques' => ';0309;0127;0400;', 'keywords' => ';0217;0436;', 'abstract' => 'A Te-doped silver chalcogenide membrane of general formula Ag2+δSe1-xTex was prepared by electrochemical deposition on a Pt cathode. The electrode was placed in a FIA system and its response to different concentrations of Hg(II) was evaluated, with a carrier comprising 0.01 M KNO3/0.01 M HNO3/0.3 µM-Hg(NO3)2 at a flow rate of 5 ml/min. The membrane had a primary response to Ag(I) and a secondary response to Hg(II); the mechanism and kinetics of these responses and the observed chemical amplification of the signal are discussed. The linearity of the detector extended over the Hg(II) concentration range 1 µM-1 mM, giving a double-Nernstian slope of the calibration graph and an electrode function of 59 mV/decade. For a sample injection volume of 100 µL and a dispersion coil length of 70 cm, the sample throughput was 65-70/h. The detector was stable for at least 14 days and showed good selectivity (only chloride and strong oxidants interfered). It measured total rather than free Hg(II), so could not be used in speciation studies.', 'language' => 'English', 'updated' => '2020-12-28 11:25:15', 'sjccheck' => 'Yes', 'sjccheckdate' => '0000-00-00 00:00:00', 'hits' => '8', 'urlcheck' => '2014-10-11 16:13:57', 'urlcheckcode' => 'HTTP/1.1 302 Found', 'pauthor_id' => '01193', 'pauthor' => '!Neshkova, M.T.', 'address' => 'pau', 'email' => 'pau', 'notes' => null, 'url' => '10.1016/0003-2670(94)00375-V', 'urltype' => 'doi', 'gotpdf' => 'yes', 'partial' => 'no', 'notanalyte' => '', 'citation' => ''Chalcogenide-based all-solid-state thin electroplated ion-selective membrane for mercury(II) flow injection determinations', Anal. Chim. 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Abstract:
A Te-doped silver chalcogenide membrane of general formula Ag2+δSe1-xTex was prepared by electrochemical deposition on a Pt cathode. The electrode was placed in a FIA system and its response to different concentrations of Hg(II) was evaluated, with a carrier comprising 0.01 M KNO3/0.01 M HNO3/0.3 µM-Hg(NO3)2 at a flow rate of 5 ml/min. The membrane had a primary response to Ag(I) and a secondary response to Hg(II); the mechanism and kinetics of these responses and the observed chemical amplification of the signal are discussed. The linearity of the detector extended over the Hg(II) concentration range 1 µM-1 mM, giving a double-Nernstian slope of the calibration graph and an electrode function of 59 mV/decade. For a sample injection volume of 100 µL and a dispersion coil length of 70 cm, the sample throughput was 65-70/h. The detector was stable for at least 14 days and showed good selectivity (only chloride and strong oxidants interfered). It measured total rather than free Hg(II), so could not be used in speciation studies.
Mercury
Interferences
Speciation
"Flow Injection Potentiometry By Poly(vinyl Chloride)-membrane Electrodes With Substituted Azacrown Ionophores For The Determination Of Lead(II) And Mercury(II) Ions"
Anal. Chim. Acta
1998 Volume 372, Issue 3 Pages 387-398
Notice (8): Undefined variable: uid [APP/View/Elements/citation.ctp, line 40]Xinhao Yang, D. Brynn Hibbert* and Peter W. 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Alexander', 'title' => 'Flow injection potentiometry by poly(vinyl chloride)-membrane electrodes with substituted azacrown ionophores for the determination of lead(II) and mercury(II) ions', 'journal' => 'Anal. Chim. Acta', 'journal_id' => '0584', 'fadid' => 'ANCA1998V0372P00387', 'year' => '1998', 'volume' => '372', 'issue' => '3', 'startpage' => '387', 'endpage' => '398', 'type' => 'Journal Article', 'analytes' => ';1360;1449;', 'matrices' => '', 'techniques' => ';0400;0132;0156;0305;0309;', 'keywords' => ';0302;0043;0110;', 'abstract' => 'A flow cell with a poly(vinyl chloride) (PVC) neutral-ionophore liq.-membrane ion-selective electrode was developed for flow injection potentiometry (FIP). The flow system was optimized and five substituted azacrown ethers: 7,16-dithenoyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (DTODC), 7,16-di-(2-thiopheneacetyl)-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (DTAODC), 7,16-dithenyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (DTDC), 1,10-dioxa-4,7,13,16-tetraazacyclooctadecane (TC) and 4,7,13,16-tetrathenoyl-1,10-dioxa-4,7,13,16-tetraazacyclooctadecane (TTOTC) synthesized and studied as the ionophores in Pb2+ (DTAODC, TTOTC) and Hg2+ (DTDC, DTODC, TC, TTOTC) selective electrodes. The short contact times between analyte and ionophore in FIP allow the measurement of a strongly complexing ion such as Hg2+ that sats. the electrodes in batch anal., or in continuous-flow anal. that comes to a steady state. For the mercury-selective electrodes with ionophores with amide functional groups (TTOTC and DTODC) a carrier of 10 mM potassium nitrate increases the speed of response and recovery to baseline. The linear calibration range for a DTAODC lead-selective electrode was pPb = 2.0 to 5.0 with a slope of 32.5 mV decade-1 and for a TTOTC mercury-selective electrode, pHg = 3.0 to 5.5 with a slope of 28.4 mV decade-1. Highly reproducible measurements were obtained (relative standard deviation <2%) at a flow rate of 3.0 mL min-1 giving a typical throughput of 40 samples h-1 for Pb2+ and 30 samples h-1 for Hg2+.', 'language' => 'English', 'updated' => '2020-12-28 11:25:15', 'sjccheck' => 'Yes', 'sjccheckdate' => '0000-00-00 00:00:00', 'hits' => '7', 'urlcheck' => '2014-10-11 16:28:21', 'urlcheckcode' => 'HTTP/1.1 302 Found', 'pauthor_id' => '01010', 'pauthor' => '!Hibbert, D.B.', 'address' => 'pau', 'email' => 'pau', 'notes' => null, 'url' => '10.1016/S0003-2670(98)00382-1', 'urltype' => 'doi', 'gotpdf' => 'yes', 'partial' => 'no', 'notanalyte' => '', 'citation' => ''Flow injection potentiometry by poly(vinyl chloride)-membrane electrodes with substituted azacrown ionophores for the determination of lead(II) and mercury(II) ions', Anal. Chim. Acta, 1998 372(3) 387-398', 'firstchar' => 'F', 'twochars' => 'Fl', 'CitationsTechnique' => array( 'id' => '003550', 'citation_id' => '006641', 'technique_id' => '0309' ), 'Analyte' => array( (int) 0 => array( [maximum depth reached] ), (int) 1 => array( [maximum depth reached] ) ), 'Matrix' => array(), 'Keyword' => array( (int) 0 => array( [maximum depth reached] ), (int) 1 => array( [maximum depth reached] ), (int) 2 => array( [maximum depth reached] ) ) ), 'i' => (int) 1 ) $data = array( 'Technique' => array( 'id' => '0309', 'label' => 'Electrode', 'level1' => 'Electrode', 'level2' => 'ion selective', 'level3' => 'mercury', 'level4' => '', 'level5' => '', 'synonyms' => 'Ion selective electrode,ISE', 'champ' => '', 'total' => '4', 'updated' => '0000-00-00 00:00:00', 'name' => 'Electrode, ion selective, mercury', 'nametotal' => 'Electrode, ion selective, mercury**4', 'first' => 'E' ), 'Citation' => array( (int) 0 => array( 'id' => '006063', 'authors' => 'Neshkova, M.T.;Pancheva, E.M.', 'authorsweb' => 'M. Neshkova* and E. Pancheva', 'title' => 'Chalcogenide-based all-solid-state thin electroplated ion-selective membrane for mercury(II) flow injection determinations', 'journal' => 'Anal. Chim. Acta', 'journal_id' => '0584', 'fadid' => 'ANCA1995V0300P00133', 'year' => '1995', 'volume' => '300', 'issue' => '1-3', 'startpage' => '133', 'endpage' => '141', 'type' => 'Journal Article', 'analytes' => ';1447;', 'matrices' => '', 'techniques' => ';0309;0127;0400;', 'keywords' => ';0217;0436;', 'abstract' => 'A Te-doped silver chalcogenide membrane of general formula Ag2+δSe1-xTex was prepared by electrochemical deposition on a Pt cathode. The electrode was placed in a FIA system and its response to different concentrations of Hg(II) was evaluated, with a carrier comprising 0.01 M KNO3/0.01 M HNO3/0.3 µM-Hg(NO3)2 at a flow rate of 5 ml/min. The membrane had a primary response to Ag(I) and a secondary response to Hg(II); the mechanism and kinetics of these responses and the observed chemical amplification of the signal are discussed. The linearity of the detector extended over the Hg(II) concentration range 1 µM-1 mM, giving a double-Nernstian slope of the calibration graph and an electrode function of 59 mV/decade. For a sample injection volume of 100 µL and a dispersion coil length of 70 cm, the sample throughput was 65-70/h. The detector was stable for at least 14 days and showed good selectivity (only chloride and strong oxidants interfered). It measured total rather than free Hg(II), so could not be used in speciation studies.', 'language' => 'English', 'updated' => '2020-12-28 11:25:15', 'sjccheck' => 'Yes', 'sjccheckdate' => '0000-00-00 00:00:00', 'hits' => '8', 'urlcheck' => '2014-10-11 16:13:57', 'urlcheckcode' => 'HTTP/1.1 302 Found', 'pauthor_id' => '01193', 'pauthor' => '!Neshkova, M.T.', 'address' => 'pau', 'email' => 'pau', 'notes' => null, 'url' => '10.1016/0003-2670(94)00375-V', 'urltype' => 'doi', 'gotpdf' => 'yes', 'partial' => 'no', 'notanalyte' => '', 'citation' => ''Chalcogenide-based all-solid-state thin electroplated ion-selective membrane for mercury(II) flow injection determinations', Anal. Chim. 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Acta', 'journal_id' => '0584', 'fadid' => 'ANCA1998V0372P00387', 'year' => '1998', 'volume' => '372', 'issue' => '3', 'startpage' => '387', 'endpage' => '398', 'type' => 'Journal Article', 'analytes' => ';1360;1449;', 'matrices' => '', 'techniques' => ';0400;0132;0156;0305;0309;', 'keywords' => ';0302;0043;0110;', 'abstract' => 'A flow cell with a poly(vinyl chloride) (PVC) neutral-ionophore liq.-membrane ion-selective electrode was developed for flow injection potentiometry (FIP). 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The linear calibration range for a DTAODC lead-selective electrode was pPb = 2.0 to 5.0 with a slope of 32.5 mV decade-1 and for a TTOTC mercury-selective electrode, pHg = 3.0 to 5.5 with a slope of 28.4 mV decade-1. 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BIA gave better reproducibility.', 'language' => 'English', 'updated' => '2020-12-28 11:25:15', 'sjccheck' => 'Yes', 'sjccheckdate' => '0000-00-00 00:00:00', 'hits' => '30', 'urlcheck' => '2014-10-12 09:25:10', 'urlcheckcode' => 'HTTP/1.1 302 Found', 'pauthor_id' => null, 'pauthor' => 'NA', 'address' => 'Department of Chemistry, Saint Petersburg State University, St. Petersburg 199034, Russia', 'email' => 'NA', 'notes' => null, 'url' => '10.1016/0925-4005(95)85069-4', 'urltype' => 'doi', 'gotpdf' => 'yes', 'partial' => 'no', 'notanalyte' => '', 'citation' => ''A mercury sensor for flow and batch-injection analyses', Sens. Actuat. B, 1995 24(1-3) 317-319', 'firstchar' => 'A', 'twochars' => 'A ', 'CitationsTechnique' => array( [maximum depth reached] ), 'Analyte' => array( [maximum depth reached] ), 'Matrix' => array([maximum depth reached]), 'Keyword' => array( [maximum depth reached] ) ), (int) 3 => array( 'id' => '013012', 'authors' => 'Gur'ev, I.A.;Kuleshova, N.V.', 'authorsweb' => 'I. A. Gur'ev and N. V. Kuleshova', 'title' => 'Flow injection determination of mercury with potentiometric detection', 'journal' => 'J. Anal. Chem.', 'journal_id' => '0798', 'fadid' => 'JACU1998V0053P00015', 'year' => '1998', 'volume' => '53', 'issue' => '1', 'startpage' => '15', 'endpage' => '18', 'type' => 'Journal Article', 'analytes' => ';1447;', 'matrices' => '', 'techniques' => ';0400;0127;0309;', 'keywords' => ';0043;0110;', 'abstract' => 'A version of flow injection determination has been developed for low concentrations of mercury in aqueous solutions; this version involves the sorption pre-concentration of mercury and its simultaneous transformation into anal. active species. A tetraiodomercurate liquid electrode selective for mercury iodide complexes was proposed as a detector.', 'language' => 'English', 'updated' => '2020-12-28 11:11:09', 'sjccheck' => 'No', 'sjccheckdate' => '0000-00-00 00:00:00', 'hits' => '19', 'urlcheck' => '2014-10-23 18:46:38', 'urlcheckcode' => 'HTTP/1.1 302 Object moved', 'pauthor_id' => null, 'pauthor' => 'NA', 'address' => 'Chemistry Faculty, Nizhni Novgorod State University, pr. 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Abstract:
A flow cell with a poly(vinyl chloride) (PVC) neutral-ionophore liq.-membrane ion-selective electrode was developed for flow injection potentiometry (FIP). The flow system was optimized and five substituted azacrown ethers: 7,16-dithenoyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (DTODC), 7,16-di-(2-thiopheneacetyl)-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (DTAODC), 7,16-dithenyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (DTDC), 1,10-dioxa-4,7,13,16-tetraazacyclooctadecane (TC) and 4,7,13,16-tetrathenoyl-1,10-dioxa-4,7,13,16-tetraazacyclooctadecane (TTOTC) synthesized and studied as the ionophores in Pb2+ (DTAODC, TTOTC) and Hg2+ (DTDC, DTODC, TC, TTOTC) selective electrodes. The short contact times between analyte and ionophore in FIP allow the measurement of a strongly complexing ion such as Hg2+ that sats. the electrodes in batch anal., or in continuous-flow anal. that comes to a steady state. For the mercury-selective electrodes with ionophores with amide functional groups (TTOTC and DTODC) a carrier of 10 mM potassium nitrate increases the speed of response and recovery to baseline. The linear calibration range for a DTAODC lead-selective electrode was pPb = 2.0 to 5.0 with a slope of 32.5 mV decade-1 and for a TTOTC mercury-selective electrode, pHg = 3.0 to 5.5 with a slope of 28.4 mV decade-1. Highly reproducible measurements were obtained (relative standard deviation <2%) at a flow rate of 3.0 mL min-1 giving a typical throughput of 40 samples h-1 for Pb2+ and 30 samples h-1 for Hg2+.
Lead(2+)
Mercury(II)
Optimization
Apparatus
Detector
"A Mercury Sensor For Flow And Batch-injection Analyses"
Sens. Actuat. B
1995 Volume 24, Issue 1-3 Pages 317-319
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Acta', 'journal_id' => '0584', 'fadid' => 'ANCA1998V0372P00387', 'year' => '1998', 'volume' => '372', 'issue' => '3', 'startpage' => '387', 'endpage' => '398', 'type' => 'Journal Article', 'analytes' => ';1360;1449;', 'matrices' => '', 'techniques' => ';0400;0132;0156;0305;0309;', 'keywords' => ';0302;0043;0110;', 'abstract' => 'A flow cell with a poly(vinyl chloride) (PVC) neutral-ionophore liq.-membrane ion-selective electrode was developed for flow injection potentiometry (FIP). 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Abstract:
Two modifications of the flow and batch injection (BIA) methods (schematic given) were applied to an Hg ISE. The sensitive membranes were prepared from Ag8HgS2I6 (details given). The membranes equipped with a solid Ag contact were pressed and attached to PVC tubes with epoxy resin. The resulting sensors exhibited stable and reproducible behavior towards 1 µM- to 0.1 M Hg and the detection limit was 0.3 µM or 1 µM (BIA). BIA gave better reproducibility.
Mercury
Method comparison
"Flow Injection Determination Of Mercury With Potentiometric Detection"
J. Anal. Chem.
1998 Volume 53, Issue 1 Pages 15-18
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Pancheva', 'title' => 'Chalcogenide-based all-solid-state thin electroplated ion-selective membrane for mercury(II) flow injection determinations', 'journal' => 'Anal. Chim. Acta', 'journal_id' => '0584', 'fadid' => 'ANCA1995V0300P00133', 'year' => '1995', 'volume' => '300', 'issue' => '1-3', 'startpage' => '133', 'endpage' => '141', 'type' => 'Journal Article', 'analytes' => ';1447;', 'matrices' => '', 'techniques' => ';0309;0127;0400;', 'keywords' => ';0217;0436;', 'abstract' => 'A Te-doped silver chalcogenide membrane of general formula Ag2+δSe1-xTex was prepared by electrochemical deposition on a Pt cathode. The electrode was placed in a FIA system and its response to different concentrations of Hg(II) was evaluated, with a carrier comprising 0.01 M KNO3/0.01 M HNO3/0.3 µM-Hg(NO3)2 at a flow rate of 5 ml/min. 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Acta', 'journal_id' => '0584', 'fadid' => 'ANCA1998V0372P00387', 'year' => '1998', 'volume' => '372', 'issue' => '3', 'startpage' => '387', 'endpage' => '398', 'type' => 'Journal Article', 'analytes' => ';1360;1449;', 'matrices' => '', 'techniques' => ';0400;0132;0156;0305;0309;', 'keywords' => ';0302;0043;0110;', 'abstract' => 'A flow cell with a poly(vinyl chloride) (PVC) neutral-ionophore liq.-membrane ion-selective electrode was developed for flow injection potentiometry (FIP). The flow system was optimized and five substituted azacrown ethers: 7,16-dithenoyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (DTODC), 7,16-di-(2-thiopheneacetyl)-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (DTAODC), 7,16-dithenyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane (DTDC), 1,10-dioxa-4,7,13,16-tetraazacyclooctadecane (TC) and 4,7,13,16-tetrathenoyl-1,10-dioxa-4,7,13,16-tetraazacyclooctadecane (TTOTC) synthesized and studied as the ionophores in Pb2+ (DTAODC, TTOTC) and Hg2+ (DTDC, DTODC, TC, TTOTC) selective electrodes. The short contact times between analyte and ionophore in FIP allow the measurement of a strongly complexing ion such as Hg2+ that sats. the electrodes in batch anal., or in continuous-flow anal. that comes to a steady state. For the mercury-selective electrodes with ionophores with amide functional groups (TTOTC and DTODC) a carrier of 10 mM potassium nitrate increases the speed of response and recovery to baseline. The linear calibration range for a DTAODC lead-selective electrode was pPb = 2.0 to 5.0 with a slope of 32.5 mV decade-1 and for a TTOTC mercury-selective electrode, pHg = 3.0 to 5.5 with a slope of 28.4 mV decade-1. Highly reproducible measurements were obtained (relative standard deviation <2%) at a flow rate of 3.0 mL min-1 giving a typical throughput of 40 samples h-1 for Pb2+ and 30 samples h-1 for Hg2+.', 'language' => 'English', 'updated' => '2020-12-28 11:25:15', 'sjccheck' => 'Yes', 'sjccheckdate' => '0000-00-00 00:00:00', 'hits' => '7', 'urlcheck' => '2014-10-11 16:28:21', 'urlcheckcode' => 'HTTP/1.1 302 Found', 'pauthor_id' => '01010', 'pauthor' => '!Hibbert, D.B.', 'address' => 'pau', 'email' => 'pau', 'notes' => null, 'url' => '10.1016/S0003-2670(98)00382-1', 'urltype' => 'doi', 'gotpdf' => 'yes', 'partial' => 'no', 'notanalyte' => '', 'citation' => ''Flow injection potentiometry by poly(vinyl chloride)-membrane electrodes with substituted azacrown ionophores for the determination of lead(II) and mercury(II) ions', Anal. Chim. Acta, 1998 372(3) 387-398', 'firstchar' => 'F', 'twochars' => 'Fl', 'CitationsTechnique' => array( [maximum depth reached] ), 'Analyte' => array( [maximum depth reached] ), 'Matrix' => array([maximum depth reached]), 'Keyword' => array( [maximum depth reached] ) ), (int) 2 => array( 'id' => '010513', 'authors' => 'Vlasov, Y.G.;Ermolenko, Y.E.;Kolodnikov, V.V.;Ipatov, A.V.;Al Marok, S.', 'authorsweb' => 'Yuri G. Vlasov, Yuri E. Ermolenko, Vasili V. Kolodnikov, Andrey V. Ipatov and Sadeg Al-Marok', 'title' => 'A mercury sensor for flow and batch-injection analyses', 'journal' => 'Sens. Actuat. B', 'journal_id' => '0646', 'fadid' => 'SNAB1995V0024P00317', 'year' => '1995', 'volume' => '24', 'issue' => '1-3', 'startpage' => '317', 'endpage' => '319', 'type' => 'Journal Article', 'analytes' => ';1447;', 'matrices' => '', 'techniques' => ';0309;0127;0426;', 'keywords' => ';0258;', 'abstract' => 'Two modifications of the flow and batch injection (BIA) methods (schematic given) were applied to an Hg ISE. The sensitive membranes were prepared from Ag8HgS2I6 (details given). The membranes equipped with a solid Ag contact were pressed and attached to PVC tubes with epoxy resin. The resulting sensors exhibited stable and reproducible behavior towards 1 µM- to 0.1 M Hg and the detection limit was 0.3 µM or 1 µM (BIA). BIA gave better reproducibility.', 'language' => 'English', 'updated' => '2020-12-28 11:25:15', 'sjccheck' => 'Yes', 'sjccheckdate' => '0000-00-00 00:00:00', 'hits' => '30', 'urlcheck' => '2014-10-12 09:25:10', 'urlcheckcode' => 'HTTP/1.1 302 Found', 'pauthor_id' => null, 'pauthor' => 'NA', 'address' => 'Department of Chemistry, Saint Petersburg State University, St. Petersburg 199034, Russia', 'email' => 'NA', 'notes' => null, 'url' => '10.1016/0925-4005(95)85069-4', 'urltype' => 'doi', 'gotpdf' => 'yes', 'partial' => 'no', 'notanalyte' => '', 'citation' => ''A mercury sensor for flow and batch-injection analyses', Sens. Actuat. B, 1995 24(1-3) 317-319', 'firstchar' => 'A', 'twochars' => 'A ', 'CitationsTechnique' => array( [maximum depth reached] ), 'Analyte' => array( [maximum depth reached] ), 'Matrix' => array([maximum depth reached]), 'Keyword' => array( [maximum depth reached] ) ), (int) 3 => array( 'id' => '013012', 'authors' => 'Gur'ev, I.A.;Kuleshova, N.V.', 'authorsweb' => 'I. A. Gur'ev and N. V. Kuleshova', 'title' => 'Flow injection determination of mercury with potentiometric detection', 'journal' => 'J. Anal. Chem.', 'journal_id' => '0798', 'fadid' => 'JACU1998V0053P00015', 'year' => '1998', 'volume' => '53', 'issue' => '1', 'startpage' => '15', 'endpage' => '18', 'type' => 'Journal Article', 'analytes' => ';1447;', 'matrices' => '', 'techniques' => ';0400;0127;0309;', 'keywords' => ';0043;0110;', 'abstract' => 'A version of flow injection determination has been developed for low concentrations of mercury in aqueous solutions; this version involves the sorption pre-concentration of mercury and its simultaneous transformation into anal. active species. A tetraiodomercurate liquid electrode selective for mercury iodide complexes was proposed as a detector.', 'language' => 'English', 'updated' => '2020-12-28 11:11:09', 'sjccheck' => 'No', 'sjccheckdate' => '0000-00-00 00:00:00', 'hits' => '19', 'urlcheck' => '2014-10-23 18:46:38', 'urlcheckcode' => 'HTTP/1.1 302 Object moved', 'pauthor_id' => null, 'pauthor' => 'NA', 'address' => 'Chemistry Faculty, Nizhni Novgorod State University, pr. 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A. Gur'ev and N. V. Kuleshova'include - APP/View/Elements/citation.ctp, line 40 View::_evaluate() - CORE/Cake/View/View.php, line 971 View::_render() - CORE/Cake/View/View.php, line 933 View::_renderElement() - CORE/Cake/View/View.php, line 1224 View::element() - CORE/Cake/View/View.php, line 418 include - APP/View/Techniques/view.ctp, line 52 View::_evaluate() - CORE/Cake/View/View.php, line 971 View::_render() - CORE/Cake/View/View.php, line 933 View::render() - CORE/Cake/View/View.php, line 473 Controller::render() - CORE/Cake/Controller/Controller.php, line 968 Dispatcher::_invoke() - CORE/Cake/Routing/Dispatcher.php, line 200 Dispatcher::dispatch() - CORE/Cake/Routing/Dispatcher.php, line 167 [main] - APP/webroot/index.php, line 109
Abstract:
A version of flow injection determination has been developed for low concentrations of mercury in aqueous solutions; this version involves the sorption pre-concentration of mercury and its simultaneous transformation into anal. active species. A tetraiodomercurate liquid electrode selective for mercury iodide complexes was proposed as a detector.
Mercury
Apparatus
Detector