Zil’berg, R. A. Yarkaeva, Yu. A. Sidel’nikov, A. V. Maistrenko, V. N. Kraikin, V. A. Gileva, N. G.
Published in
Journal of Analytical Chemistry
New voltammetric sensors based on glassy carbon electrodes (GCEs) modified by poly(arylene phthalide) are studied. The electrochemical behavior of bisoprolol on GCEs modified by poly(arylene phthalide) is investigated. The effects of potential scan rate, time of accumulation on the electrode, pH of supporting electrolyte, and concentration on the c...
Rodionov, P. V. Alieva, E. A. Sergeeva, E. A. Veselova, I. A. Shekhovtsova, T. N.
Published in
Journal of Analytical Chemistry
The expedience of the target-specific control of the properties of a medium (using micellar and aqueous–organic media), in which an indicator process providing the background for the operation of a spectrophotometric sensor based on a polyelectrolyte complex (horseradish peroxidase–chitosan) is conducted, is shown experimentally and proved by calcu...
Dedkova, V. P. Shvoeva, O. P. Simakina, Ya. I. Grechnikov, A. A.
Published in
Journal of Analytical Chemistry
Reactions of palladium(II) and rhodium(III) with dithizone (DT) on polyacrylonitrile fiber filled with an AV-17 anion exchanger (PANV–AV-17) and 1-(2-pyridylazo)-2-naphthol (PAN) immobilized on polyacrylonitrile fiber filled with a KU-2 cation exchanger (PANV–KU-2–PAN) are studied by diffuse reflection spectroscopy. Conditions of rhodium complexati...
Zvereva, E. A. Zaichik, B. Ts. Eremin, S. A. Zherdev, A. V. Dzantiev, B. B.
Published in
Journal of Analytical Chemistry
Food safety measures should include the control of the illegal use of banned toxic dyes, including Sudan I as one of the most commonly used coloring agents. A procedure was developed for the enzyme immunoassay of Sudan I carried out in the kinetic mode in order to enhance the performance and rapidity of assays. The achieved limit of detection of Su...
Budantsev, A. Yu.
Published in
Journal of Analytical Chemistry
A method and a device are proposed for varying optical path lengths of cells for spectrophotometers by placing parallel-plane insert plates (PPIPs) of variable thickness inside the cell. This method allows (a) the rapid adjustment of the optical path length of a standard cell (a dual PPIP set 5, 2 (2 pieces), and 1 mm thick ensures the variation of...
Eldin, A. B. Ismaiel, O. A. Hassan, W. E. Shalaby, A. A.
Published in
Journal of Analytical Chemistry
This review article summarizes the opportunities for utilizing the green analytical chemistry (GAC) techniques and principles in the field of quality control (QC) of pharmaceuticals. Green analytical chemistry is considered a branch of the green chemistry based on the principles overlapping with the goals of sustainable development. General definit...
Platonov, I. A. Platonov, V. I. Arutyunov, Yu. I.
Published in
Journal of Analytical Chemistry
The adsorption and selective properties of aluminum-based planar microcolumns filled with the Carbopack B adsorbent are studied. The effect of geometrical parameters of the columns on their chromatographic properties is considered on an example of the separation of a mixture of light hydrocarbons. The advantages of planar microcolumns compared to c...
Povarov, V. G. Lopatnikov, A. I.
Published in
Journal of Analytical Chemistry
The use of an array of metal oxide film sensors as a detector for volatile organic compounds in capillary gas chromatography is described. The results of determination of the sensitivity, response time, and linearity range of the analytical signals from sensors are presented; these parameters are compared with similar characteristics of commercial ...
Pervukhin, V. V. Sheven’, D. G.
Published in
Journal of Analytical Chemistry
It was found that the use of a Collison nebulizer as an ionization source for the mass-spectrometric analysis of the aqueous solutions of opium alkaloids makes it possible to determine opiates with the limits of detection of 8.8 × 10–9, 8.83 × 10–8, 1.6 × 10–7, and 3.5 × 10–8 M for papaverine, codeine, heroin, and morphine, respectively. The depend...
Azaryan, A. A. Temerdashev, A. Z. Svetlichnaya, E. V. Kal’nitskii, A. G. Balabaev, I. A.
Published in
Journal of Analytical Chemistry
A procedure is proposed for determining some narcotic and psychoactive substances (cathinones, tropane alkaloids, derivatives of ?-aminobutyric acid) in urine, including sample preparation and the determination of analytes by HPLC coupled with electrospray ionization tandem mass spectrometry. Sample preparation involved acid hydrolysis or the dilut...
