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
Galvanometry
Classification:
Galvanometry
Citations 3
"Solid-state Detector For Gas-phase Flow Injection Of Nitrogen Dioxide At Ambient Temperature"
Analyst
1989 Volume 114, Issue 8 Pages 947-949
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The detector is incorporated in a gas flow system and cell assembly (illustrated) comprising a cell holder, a flow control system for the carrier gas, a six-way sample valve, and a resistor, voltmeter and recorder to measure the current. The sample (10 ml) is injected into the N carrier stream (45 mL min-1) and the height of the current peak is recorded; the calibration graph is rectilinear from 0.01 to 1 ppm of NO2. 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TUBINO', 'title' => 'Flow injection analysis of nitrogen dioxide using a galvanic detector', 'journal' => 'J. Autom. Methods Manag. Chem.', 'journal_id' => '0958', 'fadid' => 'JAMM1998V0020P00017', 'year' => '1998', 'volume' => '20', 'issue' => '1', 'startpage' => '17', 'endpage' => '21', 'type' => 'Journal Article', 'analytes' => ';1596;', 'matrices' => ';0513;', 'techniques' => ';0265;', 'keywords' => ';0174;0258;', 'abstract' => 'A flow injection configuration (FIA) uses a galvanic detector for the determination of NO2. The gaseous sample is directly injected into a gas carrier. The sample transported toward the detector. The steady state measurements are not required to obtain reproducible peak signals. The features of FIA are compared with that of continuous-flow monitoring application. The flow injection system is simple, rapid and capable of detecting NO2 in the range 1-500 ppm(v/v). 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Flow Injection Anal.', 'journal_id' => '0776', 'fadid' => 'JFIA1989V0006P00037', 'year' => '1989', 'volume' => '6', 'issue' => '1', 'startpage' => '37', 'endpage' => '43', 'type' => 'Journal Article', 'analytes' => '', 'matrices' => '', 'techniques' => ';0064;0265;', 'keywords' => ';0086;0374;0109;0205;0420;', 'abstract' => 'The immobilized enzyme reactors are prepared from 10 µm Lichrosorb-NH2 and hexokinase (I; 300 units) and glucose-6-phosphate dehydrogenase (II; 1000 units) in stainless-steel columns (12 or 5 mm x 4 mm, respectively), and installed into a flow system (diagram given). The sample (10 µL) is transported with a carrier stream of 0.05 M Tris - HCl buffer (pH 8) containing 0.1 mM NAD+, 2 mM D-glucose, 3 mM MgCl2 and 0.1 M NaCl (at 2 mL min-1) through a 3-way catch and split so that part of the reaction mixture flows through reactors II and I in series, and part of the mixture flows through reactor I only; galvanometric measurement is carried out with use of a vitreous-carbon electrode vs. Ag - AgCl. Separate peaks are obtained for glucose 6-phosphate (III) and III plus ATP. Calibration graphs are rectilinear from 0.01 to 4 mM for III and III plus ATP, with coefficient of variation of 2%. 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Abstract:
The construction is described of a galvanic detector that consists of a disc (1.3 cm diameter, 1.3 mm thick) of solid RbAg4I5 electrolyte (0.3 g) on a Ag substratum; the electrolyte is sputter-coated with Au (25 nm) in an Ar atmosphere. The detector is incorporated in a gas flow system and cell assembly (illustrated) comprising a cell holder, a flow control system for the carrier gas, a six-way sample valve, and a resistor, voltmeter and recorder to measure the current. The sample (10 ml) is injected into the N carrier stream (45 mL min-1) and the height of the current peak is recorded; the calibration graph is rectilinear from 0.01 to 1 ppm of NO2. The effects were studied of the thickness of the Au layer, the electrolyte mass, the temperature (optimum 15°C to 35°C) and the carrier gas flow rate.
Nitrogen dioxide
Gas phase detection
Optimization
"Flow Injection Analysis Of Nitrogen Dioxide Using A Galvanic Detector"
J. Autom. Methods Manag. Chem.
1998 Volume 20, Issue 1 Pages 17-21
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The sample (10 µL) is transported with a carrier stream of 0.05 M Tris - HCl buffer (pH 8) containing 0.1 mM NAD+, 2 mM D-glucose, 3 mM MgCl2 and 0.1 M NaCl (at 2 mL min-1) through a 3-way catch and split so that part of the reaction mixture flows through reactors II and I in series, and part of the mixture flows through reactor I only; galvanometric measurement is carried out with use of a vitreous-carbon electrode vs. Ag - AgCl. Separate peaks are obtained for glucose 6-phosphate (III) and III plus ATP. Calibration graphs are rectilinear from 0.01 to 4 mM for III and III plus ATP, with coefficient of variation of 2%. 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TUBINO'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 flow injection configuration (FIA) uses a galvanic detector for the determination of NO2. The gaseous sample is directly injected into a gas carrier. The sample transported toward the detector. The steady state measurements are not required to obtain reproducible peak signals. The features of FIA are compared with that of continuous-flow monitoring application. The flow injection system is simple, rapid and capable of detecting NO2 in the range 1-500 ppm(v/v). The measuring range and sensitivity of the galvanic detector in FIA depend on the sample volume The relative standard deviation is 2.4% (n = 10) for 200 ppm (v/v) of NO2. The sampling frequency is ~24/h.
Nitrogen dioxide
Gas
Gas phase detection
Method comparison
"Simultaneous Determination Of Adenosine 5'-triphosphate And Glucose-6-phosphate Using A Flow Injection System With Immobilized Enzymes"
J. Flow Injection Anal.
1989 Volume 6, Issue 1 Pages 37-43
Notice (8): Undefined variable: uid [APP/View/Elements/citation.ctp, line 40]Toshio Yao, Yoshihiro Matsumoto-, and Tamotsu WasaCode Context?><?phpif($uid!='') {$viewFile = '/home/stuchalk/public_html/fad/app/View/Elements/citation.ctp' $dataForView = array( 'data' => array( 'Technique' => array( 'id' => '0265', 'label' => 'Galvanometry', 'level1' => 'Galvanometry', 'level2' => '', 'level3' => '', 'level4' => '', 'level5' => '', 'synonyms' => '', 'champ' => '', 'total' => '3', 'updated' => '0000-00-00 00:00:00', 'name' => 'Galvanometry', 'nametotal' => 'Galvanometry**3', 'first' => 'G' ), 'Citation' => array( (int) 0 => array( [maximum depth reached] ), (int) 1 => array( [maximum depth reached] ), (int) 2 => array( [maximum depth reached] ) ) ), 'c' => array( 'id' => '013438', 'authors' => 'Yao, T.;Matsumoto, Y.;Wasa, T.', 'authorsweb' => 'Toshio Yao, Yoshihiro Matsumoto-, and Tamotsu Wasa', 'title' => 'Simultaneous determination of adenosine 5'-triphosphate and glucose-6-phosphate using a flow injection system with immobilized enzymes', 'journal' => 'J. Flow Injection Anal.', 'journal_id' => '0776', 'fadid' => 'JFIA1989V0006P00037', 'year' => '1989', 'volume' => '6', 'issue' => '1', 'startpage' => '37', 'endpage' => '43', 'type' => 'Journal Article', 'analytes' => '', 'matrices' => '', 'techniques' => ';0064;0265;', 'keywords' => ';0086;0374;0109;0205;0420;', 'abstract' => 'The immobilized enzyme reactors are prepared from 10 µm Lichrosorb-NH2 and hexokinase (I; 300 units) and glucose-6-phosphate dehydrogenase (II; 1000 units) in stainless-steel columns (12 or 5 mm x 4 mm, respectively), and installed into a flow system (diagram given). The sample (10 µL) is transported with a carrier stream of 0.05 M Tris - HCl buffer (pH 8) containing 0.1 mM NAD+, 2 mM D-glucose, 3 mM MgCl2 and 0.1 M NaCl (at 2 mL min-1) through a 3-way catch and split so that part of the reaction mixture flows through reactors II and I in series, and part of the mixture flows through reactor I only; galvanometric measurement is carried out with use of a vitreous-carbon electrode vs. Ag - AgCl. Separate peaks are obtained for glucose 6-phosphate (III) and III plus ATP. Calibration graphs are rectilinear from 0.01 to 4 mM for III and III plus ATP, with coefficient of variation of 2%. Detection limits for III and ATP are 1.2 and 2.3 µM, respectively.', 'language' => 'Japanese', 'updated' => '2020-12-28 11:25:15', 'sjccheck' => 'No', 'sjccheckdate' => '0000-00-00 00:00:00', 'hits' => '0', 'urlcheck' => '2014-10-13 13:25:50', 'urlcheckcode' => 'HTTP/1.1 200 OK', 'pauthor_id' => '00339', 'pauthor' => '!Yao, T.', 'address' => 'pau', 'email' => 'pau', 'notes' => null, 'url' => 'aitech.ac.jp/~jafia/english/jfia/contents/6_1/JFIA1989V0006P00037.pdf', 'urltype' => 'pdfurl', 'gotpdf' => 'yes', 'partial' => 'no', 'notanalyte' => '', 'citation' => ''Simultaneous determination of adenosine 5'-triphosphate and glucose-6-phosphate using a flow injection system with immobilized enzymes', J. Flow Injection Anal., 1989 6(1) 37-43', 'firstchar' => 'S', 'twochars' => 'Si', 'CitationsTechnique' => array( 'id' => '013930', 'citation_id' => '013438', 'technique_id' => '0265' ), 'Analyte' => array(), 'Matrix' => array(), 'Keyword' => 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] ), (int) 4 => array( [maximum depth reached] ) ) ), 'i' => (int) 2 ) $data = array( 'Technique' => array( 'id' => '0265', 'label' => 'Galvanometry', 'level1' => 'Galvanometry', 'level2' => '', 'level3' => '', 'level4' => '', 'level5' => '', 'synonyms' => '', 'champ' => '', 'total' => '3', 'updated' => '0000-00-00 00:00:00', 'name' => 'Galvanometry', 'nametotal' => 'Galvanometry**3', 'first' => 'G' ), 'Citation' => array( (int) 0 => array( 'id' => '007531', 'authors' => 'Nagashima, K.;Meguro, K.;Hobo, T.', 'authorsweb' => 'Kunio Nagashima, Katsushi Meguro and Toshiyuki Hobo', 'title' => 'Solid-state detector for gas-phase flow injection of nitrogen dioxide at ambient temperature', 'journal' => 'Analyst', 'journal_id' => '0864', 'fadid' => 'ANAL1989V0114P00947', 'year' => '1989', 'volume' => '114', 'issue' => '8', 'startpage' => '947', 'endpage' => '949', 'type' => 'Journal Article', 'analytes' => ';1596;', 'matrices' => '', 'techniques' => ';0265;', 'keywords' => ';0174;0302;', 'abstract' => 'The construction is described of a galvanic detector that consists of a disc (1.3 cm diameter, 1.3 mm thick) of solid RbAg4I5 electrolyte (0.3 g) on a Ag substratum; the electrolyte is sputter-coated with Au (25 nm) in an Ar atmosphere. The detector is incorporated in a gas flow system and cell assembly (illustrated) comprising a cell holder, a flow control system for the carrier gas, a six-way sample valve, and a resistor, voltmeter and recorder to measure the current. The sample (10 ml) is injected into the N carrier stream (45 mL min-1) and the height of the current peak is recorded; the calibration graph is rectilinear from 0.01 to 1 ppm of NO2. The effects were studied of the thickness of the Au layer, the electrolyte mass, the temperature (optimum 15°C to 35°C) and the carrier gas flow rate.', 'language' => 'English', 'updated' => '2020-12-28 11:25:15', 'sjccheck' => 'Yes', 'sjccheckdate' => '0000-00-00 00:00:00', 'hits' => '3', 'urlcheck' => '2014-10-12 00:04:28', 'urlcheckcode' => 'HTTP/1.1 302 Found', 'pauthor_id' => null, 'pauthor' => 'NA', 'address' => 'NA', 'email' => 'NA', 'notes' => null, 'url' => '10.1039/an9891400947', 'urltype' => 'doi', 'gotpdf' => 'yes', 'partial' => 'no', 'notanalyte' => '', 'citation' => ''Solid-state detector for gas-phase flow injection of nitrogen dioxide at ambient temperature', Analyst, 1989 114(8) 947-949', 'firstchar' => 'S', 'twochars' => 'So', 'CitationsTechnique' => array( [maximum depth reached] ), 'Analyte' => array( [maximum depth reached] ), 'Matrix' => array([maximum depth reached]), 'Keyword' => array( [maximum depth reached] ) ), (int) 1 => array( 'id' => '013175', 'authors' => 'Liu, S.;Shen, H.;Feng, J.;Tubino, M.', 'authorsweb' => 'SHAN-JUN LIU, HAN-XI SHEN, JIAN-XING FENG, and M. 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Abstract:
The immobilized enzyme reactors are prepared from 10 µm Lichrosorb-NH2 and hexokinase (I; 300 units) and glucose-6-phosphate dehydrogenase (II; 1000 units) in stainless-steel columns (12 or 5 mm x 4 mm, respectively), and installed into a flow system (diagram given). The sample (10 µL) is transported with a carrier stream of 0.05 M Tris - HCl buffer (pH 8) containing 0.1 mM NAD+, 2 mM D-glucose, 3 mM MgCl2 and 0.1 M NaCl (at 2 mL min-1) through a 3-way catch and split so that part of the reaction mixture flows through reactors II and I in series, and part of the mixture flows through reactor I only; galvanometric measurement is carried out with use of a vitreous-carbon electrode vs. Ag - AgCl. Separate peaks are obtained for glucose 6-phosphate (III) and III plus ATP. Calibration graphs are rectilinear from 0.01 to 4 mM for III and III plus ATP, with coefficient of variation of 2%. Detection limits for III and ATP are 1.2 and 2.3 µM, respectively.
Column
Reactor
Detection limit
Immobilized enzyme
Simultaneous analysis