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
"Flow Injection Analysis With A Coated Tubular Solid-state Copper(II)-selective Electrode"
Anal. Chim. Acta
1987 Volume 197, Issue 1 Pages 217-227
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Alexander and Carmelita Maitra', 'title' => 'Continuous-flow potentiometric monitoring of 2-amino-acids with copper-wire and tubular electrodes', 'journal' => 'Anal. Chem.', 'journal_id' => '0499', 'fadid' => 'ANCH1981V0053P01590', 'year' => '1981', 'volume' => '53', 'issue' => '11', 'startpage' => '1590', 'endpage' => '1594', 'type' => 'Journal Article', 'analytes' => ';0160;1106;', 'matrices' => '', 'techniques' => ';0089;0088;0400;', 'keywords' => '', 'abstract' => 'A novel method for detection of amino acids in a continuous-flow system is reported with copper wire or copper tubular electrodes as potentiometric detectors. The copper electrodes are shown to respond to the anionic form of amino acids without addition of Cu(II) to the flow system, with a response dependent on flow rate, buffer pH, and the type of amino acid. At pH 7.1, 10 amino acids are determined in the continuous-flow system at concentrations as low as 1.0 X IOd M with a stable base line potential and freedom from electrode poisoning except in the case of cysteine. The wire electrode is shown to be useful as a universal detector for amino acids.', 'language' => 'English', 'updated' => '2014-11-12 17:41:05', 'sjccheck' => 'Yes', 'sjccheckdate' => '0000-00-00 00:00:00', 'hits' => '4', 'urlcheck' => '2014-10-11 18:32:11', 'urlcheckcode' => 'HTTP/1.1 302 Found', 'pauthor_id' => '00008', 'pauthor' => '!Alexander, P.W.', 'address' => 'pau', 'email' => 'pau', 'notes' => 'Not DOI assigned. Use issue url', 'url' => '10.1021/ac00234a013', 'urltype' => 'doi', 'gotpdf' => 'yes', 'partial' => 'no', 'notanalyte' => '', 'citation' => ''Continuous-flow potentiometric monitoring of 2-amino-acids with copper-wire and tubular electrodes', Anal. 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A', 'journal_id' => '0619', 'fadid' => 'JCRA1981V0209P00029', 'year' => '1981', 'volume' => '209', 'issue' => '1', 'startpage' => '29', 'endpage' => '39', 'type' => 'Journal Article', 'analytes' => ';0160;', 'matrices' => '', 'techniques' => ';0038;0046;0088;0273;0400;', 'keywords' => '', 'abstract' => 'A copper tubular electrode (CTE) has been used as a potentiometric detector in the determination of amino acids by reversed-phase high-performance liquid chromatography. The reference electrode was an electrically grounded tubular platinum electrode inserted in the flow stream. Comparison with a variable-wavelength UV absorbance detector showed that the CTE gave comparable response time and sensitivity, but was much more selective, showing response only to copper-binding molecules. The CTE has been applied to the analysis of urine and an intravenous amino acid preparation; no sample pre-treatment was required, other than filtration. 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"Continuous-flow Determination Of Chloride In The Nonlinear Response Region With A Tubular Chloride Ion-selective Electrode"
Talanta
1987 Volume 34, Issue 11 Pages 921-926
Notice (8): Undefined variable: uid [APP/View/Elements/citation.ctp, line 40]Hirokazu Hara* and Yoshiki WakizakaSatoshi OkazakiCode Context?>
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"Continuous-flow Potentiometric Monitoring Of 2-amino-acids With Copper-wire And Tubular Electrodes"
Anal. Chem.
1981 Volume 53, Issue 11 Pages 1590-1594
Notice (8): Undefined variable: uid [APP/View/Elements/citation.ctp, line 40]Peter W. Alexander and Carmelita MaitraCode Context?>
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XIX; Amitone; Glycine, non-medical; Hampshire glycine; Amino acid; Athenon; component of Corilin; G salt; Gly; Glycine-iron sulfate (1:1); Glycine, free base; Gyn-hydralin; Iconyl; Monazol', 'total' => '11', 'inchi' => 'InChI=1S/C2H5NO2/c3-1-2(4)5/h1,3H2,(H,4,5)', 'inchikey' => 'DHMQDGOQFOQNFH-UHFFFAOYSA-N', 'formula' => 'C2H5NO2', 'oxstate' => 'Zero', 'url' => '', 'charge' => '0', 'class1' => 'Biological', 'class2' => 'NA', 'class3' => 'NA', 'class4' => 'Molecule', 'class5' => 'Amino acids', 'isgroup' => '', 'checked' => 'yes', 'citation_count' => '0', 'updated' => '2015-10-23 09:59:12', 'first' => 'G', 'nametotal' => 'Glycine**11', 'AnalytesCitation' => array( [maximum depth reached] ) ) ), 'Matrix' => array(), 'Keyword' => array() ) $i = (int) 2 $path = '' $a = '' $url = 'http://dx.doi.org/10.1021/ac00234a013' $aus = 'Peter W. 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"Application Of A Copper Tubular Electrode As A Potentiometric Detector In The Determination Of Amino Acids By High Performance Liquid Chromatography"
J. Chromatogr. A
1981 Volume 209, Issue 1 Pages 29-39
Notice (8): Undefined variable: uid [APP/View/Elements/citation.ctp, line 40]P. W. Alexander, P. R. Haddad, G. K. C. Low and C. MaitraCode Context?>
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Maitra', 'title' => 'Application of a copper tubular electrode as a potentiometric detector in the determination of amino acids by high performance liquid chromatography', 'journal' => 'J. Chromatogr. A', 'journal_id' => '0619', 'fadid' => 'JCRA1981V0209P00029', 'year' => '1981', 'volume' => '209', 'issue' => '1', 'startpage' => '29', 'endpage' => '39', 'type' => 'Journal Article', 'analytes' => ';0160;', 'matrices' => '', 'techniques' => ';0038;0046;0088;0273;0400;', 'keywords' => '', 'abstract' => 'A copper tubular electrode (CTE) has been used as a potentiometric detector in the determination of amino acids by reversed-phase high-performance liquid chromatography. The reference electrode was an electrically grounded tubular platinum electrode inserted in the flow stream. Comparison with a variable-wavelength UV absorbance detector showed that the CTE gave comparable response time and sensitivity, but was much more selective, showing response only to copper-binding molecules. The CTE has been applied to the analysis of urine and an intravenous amino acid preparation; no sample pre-treatment was required, other than filtration. Microgram quantities of amino acids were readily detected by using the CTE.', 'language' => 'English', 'updated' => '2020-12-28 11:25:15', 'sjccheck' => 'Yes', 'sjccheckdate' => '0000-00-00 00:00:00', 'hits' => '17', 'urlcheck' => '2014-10-11 19:03:21', 'urlcheckcode' => 'HTTP/1.1 302 Found', 'pauthor_id' => '00008', 'pauthor' => '!Alexander, P.W.', 'address' => 'pau', 'email' => 'pau', 'notes' => null, 'url' => '10.1016/S0021-9673(00)80420-3', 'urltype' => 'doi', 'gotpdf' => 'yes', 'partial' => 'no', 'notanalyte' => '', 'citation' => ''Application of a copper tubular electrode as a potentiometric detector in the determination of amino acids by high performance liquid chromatography', J. Chromatogr. A, 1981 209(1) 29-39', 'firstchar' => 'A', 'twochars' => 'Ap', 'CitationsTechnique' => array( 'id' => '008830', 'citation_id' => '010009', 'technique_id' => '0088' ), 'Analyte' => array( (int) 0 => array( [maximum depth reached] ) ), 'Matrix' => array(), 'Keyword' => array() ), 'i' => (int) 3 ) $data = array( 'Technique' => array( 'id' => '0088', 'label' => 'Electrode', 'level1' => 'Electrode', 'level2' => 'copper', 'level3' => 'tubular', 'level4' => '', 'level5' => '', 'synonyms' => '', 'champ' => '', 'total' => '4', 'updated' => '0000-00-00 00:00:00', 'name' => 'Electrode, copper, tubular', 'nametotal' => 'Electrode, copper, tubular**4', 'first' => 'E' ), 'Citation' => array( (int) 0 => array( 'id' => '005008', 'authors' => 'Van Staden, J.F.;Wagener, C.C.P.', 'authorsweb' => 'J. F. van Staden and C. C. P. Wagener', 'title' => 'Flow injection analysis with a coated tubular solid-state copper(II)-selective electrode', 'journal' => 'Anal. Chim. Acta', 'journal_id' => '0584', 'fadid' => 'ANCA1987V0197P00217', 'year' => '1987', 'volume' => '197', 'issue' => '1', 'startpage' => '217', 'endpage' => '227', 'type' => 'Journal Article', 'analytes' => ';0686;', 'matrices' => ';1069;1061;', 'techniques' => ';0088;0295;', 'keywords' => ';0217;', 'abstract' => 'The electrode (Ibid., 1986, 179, 407) was activated by the deposition of copper sulfide inside a copper tube by circulating (2 mL min-1) 0.1 ppm ammonium sulfide followed by 20 ppm ascorbic acid. The detector was used in a flow injection system and showed rectilinear response between 10 and 5000 µg mL-1 of Cu(II) and a detection limit of 0.5 µg mL-1. Detector performance was evaluated with respect to system parameters, pH and the influence of foreign ions; interference was caused by Cl- and Br-. However, the electrode could be used for determination of Cu(II) in the presence of <0.25 g L-1 of Cl- in waste water and tap-water.', 'language' => 'English', 'updated' => '2020-12-28 11:25:15', 'sjccheck' => 'Yes', 'sjccheckdate' => '0000-00-00 00:00:00', 'hits' => '5', 'urlcheck' => '2014-10-11 15:52:24', 'urlcheckcode' => 'HTTP/1.1 302 Found', 'pauthor_id' => '00328', 'pauthor' => '!Van Staden, J.F.', 'address' => 'pau', 'email' => 'pau', 'notes' => null, 'url' => '10.1016/S0003-2670(00)84730-3', 'urltype' => 'doi', 'gotpdf' => 'yes', 'partial' => 'no', 'notanalyte' => '', 'citation' => ''Flow injection analysis with a coated tubular solid-state copper(II)-selective electrode', Anal. Chim. Acta, 1987 197(1) 217-227', '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) 1 => array( 'id' => '006888', 'authors' => 'Hara, H.;Wakizaka, Y.;Okazaki, S.', 'authorsweb' => 'Hirokazu Hara* and Yoshiki WakizakaSatoshi Okazaki ', 'title' => 'Continuous-flow determination of chloride in the nonlinear response region with a tubular chloride ion-selective electrode', 'journal' => 'Talanta', 'journal_id' => '0569', 'fadid' => 'TALT1987V0034P00921', 'year' => '1987', 'volume' => '34', 'issue' => '11', 'startpage' => '921', 'endpage' => '926', 'type' => 'Journal Article', 'analytes' => ';0594;', 'matrices' => ';0398;0394;', 'techniques' => ';0088;0400;', 'keywords' => ';0090;0258;', 'abstract' => 'The tubular electrode is constructed from copper pipe (2 cm x 0.28 cm) plated internally with silver, which is then electro-oxidized in 0.1 M KCl to form a AgCl layer. This electrode is used in conjunction with an Orion double-junction reference electrode containing 1 M NaNO3 in 30% methanol solution as outer filling solution The electrode is incorporated into a microcomputer-aided flow system in which sample or standard solution is mixed with colloidal AgCl solution to remove Br- and I- before the sample is passed through the tubular electrode. The concentration. is interpolated with use of the spline function in the range 0.1 to 10 mg L-1 and the corresponding coefficient of variation were 10 to 2% (n = 5). The detection limit is ~0.1 mg l-1. Results of analysis of rain and snow containing >0.75 mg L-1 of Cl-1 agreed within 10% of those of ion chromatography (n = 12).', 'language' => 'English', 'updated' => '2020-12-28 11:25:15', 'sjccheck' => 'Yes', 'sjccheckdate' => '0000-00-00 00:00:00', 'hits' => '30', 'urlcheck' => '2014-10-11 14:54:43', 'urlcheckcode' => 'HTTP/1.1 302 Found', 'pauthor_id' => '00998', 'pauthor' => '!Hara, H.', 'address' => 'pau', 'email' => 'pau', 'notes' => null, 'url' => '10.1016/0039-9140(87)80130-3', 'urltype' => 'doi', 'gotpdf' => 'yes', 'partial' => 'no', 'notanalyte' => '', 'citation' => ''Continuous-flow determination of chloride in the nonlinear response region with a tubular chloride ion-selective electrode', Talanta, 1987 34(11) 921-926', 'firstchar' => 'C', 'twochars' => 'Co', 'CitationsTechnique' => array( [maximum depth reached] ), 'Analyte' => array( [maximum depth reached] ), 'Matrix' => array( [maximum depth reached] ), 'Keyword' => array( [maximum depth reached] ) ), (int) 2 => array( 'id' => '008271', 'authors' => 'Alexander, P.W.;Maitra, C.', 'authorsweb' => 'Peter W. 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