Contents

Inorganic Materials

Vol. 57, No. 14, 2021

Substances Analysis

Methodological Features of the Spectrophotometric Determination of Proteins in Biological Fluids Using Reactions with Brompyrogallol Red

T. B. Pochinok, P. V. Anisimovich and Z. A. Temerdashev p. 1367  abstract

Study of Selectivity of Extractants for Extraction of Organosulfur Compounds from Model Solutions

E. Yu. Savonina, O. N. Katasonova and T. A. Maryutina p. 1374  abstract

Arc Optical Emission Spectroscopy of Initial Feedstock for Production of Metallurgical Alumina

E. S. Koshel, K. V. Petrova, V. B. Baranovskaya and Ya. V. Kuminova p. 1379  abstract

Methodological Approaches to Calculating Key Validation Parameters of Forensic Methods

G. I. Bebeshko, I. P. Lyubetskaya, G. G. Omel’yanyuk and A. I. Usov p. 1385  abstract

Beryllium Analytical Signal Using ERIAD Mass-Spectrometry for Various Sample Preparation Methods

A. A. Dyachenko, N. M. Blashenkov, N. S. Samsonova, L. N. Gall, A. A. Semenov, A. V. Lizunov, N. R. Gall and O. A. Belyaeva p. 1393  abstract

Algorithm of Combining Chromatography–Mass Spectrometry Untargeted Profiling and Multivariate Analysis for Identification of Marker Substances in Samples of Complex Composition

I. V. Plyushchenko, D. G. Shakhmatov and I. A. Rodin p. 1397  abstract

Aqueous Propylene Glycol Extracts from Medicinal Plants: Chemical Composition, Antioxidant Activity, Standardization, and Extraction Kinetics

V. A. Volkov, M. V. Voronkov, V. M. Misin, E. S. Fedorova, I. A. Rodin and A. N. Stavrianidi p. 1404  abstract

Determination of 1,1-Dimethylhydrazine in Water with High Pressure Liquid Chromatography and Spectrophotometric Detection Using Micellar Catalysis

Yu. V. Timchenko, I. V. Belikova, A. D. Smolenkov, A. V. Pirogov and O. A. Shpigun p. 1413  abstract

Rapid X-Ray Fluorescence Analysis of Intercalation Compounds for Molybdenum Content

V. N. Talanova, O. L. Lependina, D. Kh. Kitaeva and A. G. Buyanovskaya p. 1422  abstract

Sorption of Se(IV) from Aqueous Solutions with Subsequent Determination by X-Ray Fluorescence Analysis

D. G. Filatova, A. A. Arkhipenko, M. A. Statkus, V. V. Es’kina, V. B. Baranovskaya and Yu. A. Karpov p. 1427  abstract

Developing Evidentiary Foundation Based on Assessment of Forensic Results

S. A. Smirnova, G. I. Bebeshko, G. G. Omel’yanyuk, A. I. Usov and Sh. N. Khaziev p. 1431  abstract

Determining the Total Base Number of Engine Oils Using Potentiometric Titration

A. S. Chikunova and V. I. Vershinin p. 1440  abstract

Composition of Low-Molecular Weight Impurities in Dimethylmethylphenylsiloxane Rubbers with Terminal Hydroxyl Groups

A. M. Filippov, N. Yu. Semenkova, S. M. Gorelov, T. I. Shulyatieva and P. A. Storozhenko p. 1447  abstract