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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Victor P. Andreev

Abbrev:
Andreev, V.P.
Other Names:
Address:
Institute of Analytical Instrument Making, Russian Academy of Science, Rizhskii Prosp 26, St Petersburg 198103, Russia
Phone:
+7 7812 2517038
Fax:
NA

Citations 7

"Experimental Study Of Kinematic Focusing. Comparison Of Electroinjection And Sequential Injection Determination Of Copper"
Talanta 1999 Volume 48, Issue 2 Pages 485-490
Victor P. Andreev, Natalia B. Ilyina, David A. Holman, Louis D. Scampavia and Gary D. Christian

Abstract: The recently predicted phenomenon of kinematic focusing was studied experimentally using copper ions and EDTA as reactants. Kinematic focusing occurs, in electroinjection analysis, when the detected reaction product moves at the same rate as the reagent present in excess. Thus, reaction product accumulates without dispersion at the front of the excess reagent. CuEDTA2- complex was observed at 254 nm to form an exceptionally sharp peak as the front of the EDTA zone passed by the detector. The concentrating effect of kinematic focusing was quantified by electroinjection of premixed CuEDTA2-. Sensitivity was compared to that of sequential injection analysis using a 1 cm optical pathlength. Sensitivity was highest in the electroinjection mode, in spite of its 120 µm capillary pathlength, due to kinematic focusing.
Sequential injection

"Electroinjection Analysis. The Introduction Of A New Variant Of Flow Injection Analysis And Comparison With Electrophoretically-mediated Microanalysis"
Talanta 1996 Volume 43, Issue 6 Pages 909-914
V. P. Andreev*, A. G. Kamenev and N. S. Popov

Abstract: A method of mixing sample and reagent in FIA based on electrophoretically-mediated microanalysis (cf. Bao and Regnier, J. Chromatogr. A., 1992, 608, 217) is presented. The new method, electroinjection analysis, injects sample and reagents at opposite ends of the capillary tube and the mixing is due to the differences in their electrophoretic mobilities. Electroinjection analysis and electrophoretically-mediated microanalysis are compared and discussed.
Electrophoresis Injection technique Osmotic flow

"On The Mathematical Model Of Flow Injection Analysis. 2. The Second Order Chemical Reaction In A Straight Tube"
Talanta 1994 Volume 41, Issue 10 Pages 1755-1763
V. P. Andreev* and T. V. Kondratieva,

Abstract: A mathematical model is presented of FIA for fast second-order chemical reactions in a straight reaction tube. The model results agree with experimental results and relationships were derived to optimize FIA. It was proposed to put the detector in a real FIA system immediately after the point where samples and reagents mix. (For Part I see Anal. Abstr., 1994, 56, 2A37).
Spectrophotometry

"Electroinjection Analysis. Concept, Mathematical Model And Applications"
J. Chromatogr. A 1997 Volume 772, Issue 1-2 Pages 115-127
Victor P. Andreev*, Natalia B. Ilyina, Elena V. Lebedeva, Alexandr G. Kamenev and Nicolai S. Popov

Abstract: Mathematical models for the mutually complementary techniques of electroinjection analysis (EIA; a combination of FIA and CZE; Talanta, 1996, 43, 909) and electrophoretically mediated microanalysis (EMMA; Patterson et al., J. Chromatogr., A, 1996, 732, 119) are presented. EIA and EMMA are demonstrated by the determination of Cr(VI) and Co2+, respectively, in water (detection limits 1.4 and 1 ng/ml, respectively).
Cobalt(II) Chromium(VI) Water Electrophoresis Apparatus Injection technique Modeling

"Electroinjection Analysis: From A New Method For Sample Mixing In Flow Injection Analysis To A Novel Analytical Method"
J. Anal. Chem. 1999 Volume 54, Issue 7 Pages 681-687
V. P. Andreev

Abstract: The potentialities and prospects for the development of electroinjection analysis as a new method for analyzing liquid samples are discussed. The method is compared with flow injection analysis, electrophoretically-mediated microanalysis, and capillary electrophoresis.

"Principles And Capabilities Of Electroinjection Analysis"
Anal. Lett. 2001 Volume 34, Issue 10 Pages 1569-1583
Victor P. Andreev, Gary D. Christian

Abstract: Electroinjection analysis, its principles, and its applications are reviewed. The signal-enhancing effect of kinematic focusing is explained, and new results to demonstrate the effect are presented. The potential of electroinjection analysis for investigation of the complex-forming ability of natural samples is illustrated by the reaction of copper and lead with peat samples; the fraction of uncomplexed metal is reacted in the column with EDTA for detection. Reaction kinetic studies with EIA are presented, along with the novel ability to detect reaction intermediates. Electroinjection analysis is compared with flow injection analysis, capillary electrophoresis with precolumn reaction. electrophoretically mediated microanalysis, and affinity capillary electrophoresis.
Sequential injection

"Mathematical Model Of Flow Injection Analysis. First-order Chemical Reaction In A Straight Tube"
Anal. Chim. Acta 1993 Volume 278, Issue 2 Pages 307-316
V. P. Andreev* and M. I. Khidekel

Abstract: Analytical expressions for the parameters of sample and chemical reaction product concentration distribution in a straight reaction tube were obtained to analyze the dependence of sample and product peak shapes on their diffusion coefficient, chemical reaction rate constant, tube dimensions and modes of FIA. The model was compared with results available from numerical analysis and experiment.
Kinetic Diffusion coefficients Modeling Theory Peak shape