Vol 13, No 4 (2023)

В этом году исполняется 120 лет открытию хроматографии М. С. Цветом. Этому событию посвящаются различные мероприятия, создаются новые организационные структуры. В конце 2022 года двумя научными советами РАН – по аналитической и физической химии, учреждена объединенная комиссия по хроматографии. Руководителем комиссии выбран крупный ученый в области аналитической химии, один из основателей современных методов хроматографии, член-корр. РАН, доктор химических наук, профессор химического факультета МГУ им.М.В.Ломоносова Олег Алексеевич Шпигун. Он рассказал нам о своем пути в науку, работе, успехах, достижениях и планах.

Federal Scientific Center for Food Systems. V. M. Gorbatov, Russian Academy of Sciences Research and testing center of the Federal State Budgetary Scientific Institution FNTs of Food Systems named after A.I. V. M. Gorbatov RAS (NIITs) carries out work to confirm and evaluate the quality and safety of food products. The experience accumulated within its walls, combined with the high professionalism of all members of its team, is a solid foundation on which the high authority of the NIIC is based in the field of testing food products intended both for the domestic market and the countries of the Customs Union, and for export.

Report of Professor Yakov Ivanovich Yashin Prospects for chromatography in the Russian Federation in the 21^st century at the Ceremonial meeting dedicated to the 120^th anniversary of the discovery of chromatography by M. S. Tsvet, was held at the Institute of Physical Chemistry of the Russian Academy of Sciences on March 24, 2023 and was dedicated to the urgent tasks of domestic chromatography and promising areas of its development.

Power transformers are one of the main and expensive types of equipment for power stations and substations. Over the past two decades, there has been an aging trend in the fleet of transformer equipment all over the world [1]. Therefore, to support the reliable functioning of power transformers (PT), it is necessary to develop methods for diagnosing their condition, which will allow detecting developing damage at an early stage. In addition, of considerable interest are the indicators of aging of internal insulation to assess its residual life and the service life of the ST. A method for determining methanol in transformer oil as a marker of paper insulation aging in power transformers is proposed.

The methods most popular in the Russian Federation for the determination of benzo(a)pyrene in soils are considered and the results of interlaboratory experiments with their use are presented. The data obtained showed the insufficient efficiency of the procedures for extracting benzo(a)pyrene from the sample.

One of the reasons for the underestimation of the results may be the loss of benzo(a)pyrene during sample preparation. To establish the correction factor, laboratories need matrix reference materials that are not available on the domestic market. The conducted interlaboratory experiment made it possible to certify a sample that can be used for intralaboratory control, assessment of the correctness of the analyzes and improvement of analysis procedures.

Bioanalytical measurements of nucleic acids are applied to the most important challenges in the food industry. The international comparability of measurements is the basis for international trade. International cooperation of metrological institutes ensures comparability of measurements including nucleic acid analysis.

1. I. Mendeleyev Institute for Metrology works on creation of the state primary standard of DNA sequence copy number unit, which will allow to provide metrological traceability of nucleic acids measurement results at the national level. To meet the needs of analytical laboratories, reference materials of nucleic acid composition will be created.