Journal of Analytical Chemistry
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Anatolii Aleksandrovich Ishchenko (On his 60th birthday)
Journal of Analytical Chemistry - Tập 63 - Trang 511-512 - 2008
A Criterion of Selection of Stationary Phases for Improving the Performance of Chromatographic Analysis
Journal of Analytical Chemistry - Tập 74 - Trang 376-381 - 2019
A convenient criterion is derived for the characterization of chromatographic stationary phases capable of providing an efficient and rapid analysis of a given class of mixtures based on a theoretical analysis of the dependence of specific efficiency on capacity. The criterion implicitly contains information about the internal structure of the column packing grain. The derivation of an expression ...... hiện toàn bộ
Evaluation of the Concentration Polymethylene Naphthalene Sulfonates in Concrete
Journal of Analytical Chemistry - Tập 73 - Trang 832-835 - 2018
A procedure is developed for the determination of technical polymethylene naphthalene sulfonates (TPNS) in concrete by HPLC. The presence of 9.8–18.8% of a fraction with a low adsorption activity in TPNS is detected. A correlation is found between the initial slump of the concrete mix cone and the refined amount of oligomers of polymethylene naphthalene sulfonic acids with n ≥ 11, contained in TPN...... hiện toàn bộ
Analysis of Serum Estrogens Using High-Performance Liquid Chromatography–Tandem Mass Spectrometry Coupled to Differential Ion Mobility Spectrometry
Journal of Analytical Chemistry - Tập 77 - Trang 1760-1766 - 2023
A new quantification method is proposed for the determination of serum estrone (E1), estradiol (E2), and estriol (E3) based on high-performance liquid chromatography–tandem mass spectrometry combined with differential ion mobility separation (SelexION Technology). This approach allows determining analytes with limits of detection of 4.5, 18 and 45 fg on column for E1, E2, and E3, respectively. The...... hiện toàn bộ
Study of Gaseous Sample Ionization by Excited Particles Formed in Glow Discharge Using High-Resolution Orthogonal Acceleration Time-of-Flight Mass Spectrometer
Journal of Analytical Chemistry - Tập 72 - Trang 1331-1339 - 2018
The experimental results of a mass spectral analysis of volatile organic compounds in a gaseous sample, obtained using an original design of an ion source based on the Penning ionization of a gas sample by excited metastable inert gas atoms, are presented. Using ANSYS software, a gas-dynamic simulation of reagent gas flow from discharge zone to ionization region was carried out to analyze the effe...... hiện toàn bộ
Determination of purple corn husk anthocyanins
Journal of Analytical Chemistry - Tập 71 - Trang 1145-1150 - 2016
Components of the purple corn husk anthocyanin complex as a rich inedible source for the preparation of natural dyes were analyzed by reversed-phase HPLC with spectrophotometric and mass-spectrometric detection. The wide speciation of anthocyanins was found and its main components were identified as malonylation products of cyanidin-3-glucoside, 3″,5″-dimalonate (31.0%), 5″-monomalonate (32.2%), a...... hiện toàn bộ
Chromatographic and electrophoretic methods for determining polyphenol compounds
Journal of Analytical Chemistry - Tập 63 - Trang 1024-1033 - 2008
The main physicochemical methods for identifying and quantifying polyphenol compounds in various plant and food objects (tea, wine) and human biological fluids (urine, plasma, blood serum, saliva) were reviewed, such as chromatography (high-performance liquid chromatography and thin-layer chromatography) and electrophoresis (capillary zone electrophoresis and micellar electrokinetic chromatography...... hiện toàn bộ
Armin Genrikhovich Stromberg Won the Prize of the Scientific Council on Analytical Chemistry of the Russian Academy of Sciences
Journal of Analytical Chemistry - Tập 57 - Trang 852-852 - 2002
Tổng số: 3,585
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