University of North Florida
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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

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Denki Kagaku

  • Publisher:
  • FAD Code: DKKB
  • CODEN: EECTFA
  • ISSN: 1344-3542
  • Abbreviation: Denki Kagaku
  • DOI Prefix: 10.5796/electrochemistry
  • Other Name(s): Denki Kagaku oyobi Kogyo Butsurikagaku, Journal of the Electrochemical Society of Japan, Denki Kagaku, Electrochemistry (English title)
  • Language: Japanese
  • Comments: Fulltext from 1999 V67

Citations 5

"Flow Injection Analysis With Simple Chemiluminescence Detector For Hypoxanthine"
Denki Kagaku 1995 Volume 63, Issue 12 Pages 1148-1153
Yagiuda, K.;Hemmi, A.;Sakamura, K.;Ito, S.;Asano, Y.;Hayashi, K.;Karube, I.

Abstract: A low cost chemiluminescence detector with a photodiode for flow injection analysis of hypoxanthine in fish and meat was developed for quality control in food industry. In this system, hypoxanthine is oxidized enzymatically to produce hydrogen peroxide during passage through the xanthine oxidase immobilized reactor, Then, chemi-luminescence caused by mixing hydrogen peroxide with chemiluminescence reagent was detected by the now through photodiode cell that was designed to detect efficiently weak chemiluminescence. This light intensity was proportional to hypoxanthine concentration, As a result, a linear working curve was obtained from 2 x 10^-7 to 2 x 10^-4 mol L-1 hypoxanthine concentration in this FIA system, The present system with the photodiode detector was applied to the determination of hypoxanthine in fish and meat samples. The result:, were compared with those obtained by the conventional HPLC method, Analytical results for fish samples obtained by the present FIB method were fairly in good agreement with those obtained by the conventional HPLC method, Correlation factor and regression line between both methods were 0.978 and Y = 0.89X + 0.66 respectively, The present FIA system was concluded to be available as a simple, easy-handling and reliable instrument for quality control in food industry. (16 references)
Hypoxanthine Marine Meat Chemiluminescence Photodiode Immobilized enzyme Method comparison

"Spectroscopic Analysis Of Electrochemical Processes By Using A Column-electrolysis Method"
Denki Kagaku 1993 Volume 61, Issue 1 Pages 100-101
Oyama, M.

Abstract: A review, with 8 refs., is given on the title subject, describing a pulse-electrolysis stopped-flow method with the anal. of rate processes of fast chemical reactions, and a resonance Raman scattering method with some examples. Future prospects of the application of these methods are also described. (SFS)
Water Electrochemical analysis Raman Stopped-flow

"Non-enzymic Electrochemical Analysis Of Saccharides"
Denki Kagaku 1991 Volume 59, Issue 2 Pages 114-114
Okawa, Yusuke

Abstract: A review is presented, with 7 references, on the determination of saccharides by HPLC and flow injection analysis with electrochemical detection.
Saccharides HPLC Electrochemical analysis Review

"Surface-modified Electrochemical Detector For Flow Injection Analysis. Poly(N,N-dimethylaniline)-coated Glassy Carbon Electrodes"
Denki Kagaku 1990 Volume 58, Issue 12 Pages 1136-1142
Ohsaka, T.;Taguchi, K.;Ikeda, S.;Oyama, N.

Abstract: A vitreous carbon electrode coated with the cited compound (I) was incorporated into a standard three-electrode cell for flow injection experiments using a thin-layer flow cell. Improvement in the selectivity of amperometric detection for the flow injection system was observed due to electrostatic interaction between positively-charged I film and analytes, viz, the cationic species (e.g., as dopamine, norepinephrine and DL-3,4-dihydroxyphenylalanine) showed little response, whereas the response of neutral and anionic species (e.g., 3,4-dihydroxyphenylacetic acid, 4-hydroxy-3-methoxyphenylacetic acid and catechol) was only slightly changed at the coated electrode when compared with the bare electrode. In addition, the coating was found to function to some extent as a barrier against electrode poisoning due to the adsorption of surface-active compounds, e.g., bovine serum albumin.
Electrochemical analysis Amperometry Electrode Flowcell Selectivity

"Biosensing Of Zinc(II) Ions Using An Apoenzyme Reactor And An ISFET Detector In Flow Streams"
Denki Kagaku 1990 Volume 58, Issue 12 Pages 1114-1118
Satoh, I.;Aoki, Y.

Abstract: Alkaline phosphatase was immobilized onto oxiran-acrylic beads (Eupergit-C; Roehm Pharma, Darmstadt) and packed into a small polymer reactor maintained at 30°C. Enzyme activity was monitored by an ISFET attached to a thin-layer flow-through cell which measured the pH shift due to the enzymatic reaction. The Zn2+ ions were potentiometrically determined from 10 M to 1 mM with coefficient of variation of 2.3%. Activity was assessed by injecting 0.1 M p-nitrophenyl phosphate and measuring the change in pH; regeneration of the reactor was achieved by injecting 20 mM 2,6-pyridine dicarboxylate (pH 6.0).
Zinc(II) Field effect transistor Immobilized enzyme Detector