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
Classification:
Electrode
-> bacteria modified
Citations 2
"Chemometrical Studies On Mixture Analysis With A Single Dynamic Microbial Sensor"
Sens. Actuat. B
1997 Volume 44, Issue 1-3 Pages 286-290
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Abstract:
A bacterial pure culture of Alcaligenos eutrophus KT02 was immobilized and integrated as a sensor in an amperometrical flow-through system ('dynamic microbial sensor'). The sensor showed characteristic time dependent responses in oxygen consumption for different pure organic analytes. Chemometrical data analysis revealed that the responses are additive and linear concerning single analytes and mixtures, Simultaneous multicomponent analysis of a binary mixture of acetate and gluconate was realized by using only a single dynamic microbial sensor.
Organic compounds
Partial least squares
Chemometrics
Multicomponent
"Simple Flow Injection Analysis System For Determination Of Added Sugars In Dairy Products"
J. Dairy Res.
1998 Volume 65, Issue 4 Pages 675-680
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Dairy Res., 1998 65(4) 675-680', 'firstchar' => 'S', 'twochars' => 'Si', 'CitationsTechnique' => array( 'id' => '013862', 'citation_id' => '013370', 'technique_id' => '0061' ), 'Analyte' => array( (int) 0 => array( 'id' => '02217', 'name' => 'Sugars', 'iupac_name' => '', 'casrn' => '', 'synonyms' => '', 'total' => '21', 'inchi' => '', 'inchikey' => '', 'formula' => '', 'oxstate' => null, 'url' => '', 'charge' => null, 'class1' => '', 'class2' => '', 'class3' => '', 'class4' => '', 'class5' => '', 'isgroup' => 'no', 'checked' => 'no', 'citation_count' => '0', 'updated' => '2015-12-11 09:53:17', 'first' => 'S', 'nametotal' => 'Sugars**21', 'AnalytesCitation' => array( [maximum depth reached] ) ), (int) 1 => array( 'id' => '02215', 'name' => 'Sucrose', 'iupac_name' => '(2R,3R,4S,5S,6R)-2-[(2S,3S,4S,5R)-3,4-dihydroxy-2,5-bis(hydroxymethyl)oxolan-2-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol', 'casrn' => '57-50-1', 'synonyms' => '1-α-D-glucopyranosyl-2-β-D-fructofranoside; α-D-glucopyranosyl β-D-fructofuranoside; (α-D-glucosido)-β-D-fructofuranoside; β-D-fructofuranose-(2-1)-α-D-glucopyranoside; β-D-fructofuranosyl-α-D-Glucopyranoside; Beet sugar; Cane sugar; confectioner\'s sugar; D(+)-Sucrose; Saccharose; saccharum; Sucrose; Sugar', 'total' => '60', 'inchi' => 'InChI=1S/C12H22O11/c13-1-4-6(16)8(18)9(19)11(21-4)23-12(3-15)10(20)7(17)5(2-14)22-12/h4-11,13-20H,1-3H2/t4-,5-,6-,7-,8+,9-,10+,11-,12+/m1/s1', 'inchikey' => 'CZMRCDWAGMRECN-UGDNZRGBSA-N', 'formula' => 'C12H22O11', 'oxstate' => '', 'url' => '', 'charge' => '0', 'class1' => 'Organic compound', 'class2' => 'NA', 'class3' => 'NA', 'class4' => 'Molecule', 'class5' => 'Sugars', 'isgroup' => '', 'checked' => 'yes', 'citation_count' => '0', 'updated' => '2015-12-11 16:21:31', 'first' => 'S', 'nametotal' => 'Sucrose**60', 'AnalytesCitation' => array( [maximum depth reached] ) ) ), 'Matrix' => array( (int) 0 => array( 'id' => '0434', 'label' => 'Food', 'level1' => 'Food', 'level2' => 'dairy', 'level3' => '', 'level4' => '', 'level5' => '', 'synonyms' => '', 'total' => '2', 'url' => '', 'updated' => '2015-12-09 21:04:43', 'name' => 'Food, dairy', 'nametotal' => 'Food, dairy**2', 'first' => 'F', 'CitationsMatrix' => array( [maximum depth reached] ) ) ), 'Keyword' => array( (int) 0 => array( 'id' => '0043', 'type' => 'Manifold component', 'keyword' => 'Apparatus', 'newKeyword' => '', 'synonyms' => '', 'fao' => '', 'total' => '466', 'first' => 'A', 'keytotal' => 'Apparatus**466', 'CitationsKeyword' => array( [maximum depth reached] ) ), (int) 1 => array( 'id' => '0110', 'type' => 'Manifold component', 'keyword' => 'Detector', 'newKeyword' => '', 'synonyms' => '', 'fao' => '', 'total' => '354', 'first' => 'D', 'keytotal' => 'Detector**354', 'CitationsKeyword' => array( [maximum depth reached] ) ) ) ) $i = (int) 1 $path = '' $a = '' $url = 'http://dx.doi.org/10.1017/S0022029998003045' $aus = 'EDUARDO CORT&Oacute;N a and GUILLERMO LOCASCIO'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 microbial sensor based on a carbon dioxide electrode coupled with immobilized Saccharomyces cerevisiae (baker's yeast) was used for the determination of sucrose in dairy products. The sensor was used as the detector in a flow injection analysis system. Calibration curves for sucrose were established from 1 to 100 g/L. Determinations for several dairy products containing added sucrose gave good agreement with the concentrations given by manufacturers. Typically, the standard error of the method was shown to be <5% of the calculation mean.
Sugars
Sucrose
Food
Apparatus
Detector