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technospheramag
ТЕХНОСФЕРА_РИЦ
Opinion
E. V. Shokhin
Secrets of Business Resilience in a Pandemic DOI: 10.22184/2227-572X.2020.10.6.434.438
Secrets of Business Resilience in a Pandemic DOI: 10.22184/2227-572X.2020.10.6.434.438
Exhibitions and Conferences
O. A. Lavrentieva, A. E. Krylova
8th International Exhibition Analytica Expo: under the Sign of Fighting the Pandemic DOI: 10.22184/2227-572X.2020.10.6.440.446
8th International Exhibition Analytica Expo: under the Sign of Fighting the Pandemic DOI: 10.22184/2227-572X.2020.10.6.440.446
A. N. Alyoshin
analytica virtual – a New Format and New Records DOI: 10.22184/2227-572X.2020.10.6.448.450
analytica virtual – a New Format and New Records DOI: 10.22184/2227-572X.2020.10.6.448.450
News
Analytics of Substances and Materials
E. A. Detenchuk, A. T. Lebedev
Transformation of organic compounds during drinking water disinfection DOI: 10.22184/2227-572X.2020.10.6.454.462
Drinking water quality is one of the most important parameters dealing with maintenance of population health. Being the most widespread method of drinking water disinfection chlorination providing epidemiological safety, at the same time leads to the formation of numerous organochlorine compounds negatively influencing human health. Natural organic matter (humic matter) as well as anthropogenic compounds, present in the natural water, are the main sources of these xenobiotics. Over 700 disinfection by-products (DBP) are reported nowadays, while toxicological characteristics of the majority of them remain unknown so far. Combined chromatography-mass spectrometry methods demonstrated themselves as the most efficient to discover novel DBP and quantify the regulated ones. The same methods are also used to study the mechanisms of aquatic chlorination of organic compounds.
Transformation of organic compounds during drinking water disinfection DOI: 10.22184/2227-572X.2020.10.6.454.462
Drinking water quality is one of the most important parameters dealing with maintenance of population health. Being the most widespread method of drinking water disinfection chlorination providing epidemiological safety, at the same time leads to the formation of numerous organochlorine compounds negatively influencing human health. Natural organic matter (humic matter) as well as anthropogenic compounds, present in the natural water, are the main sources of these xenobiotics. Over 700 disinfection by-products (DBP) are reported nowadays, while toxicological characteristics of the majority of them remain unknown so far. Combined chromatography-mass spectrometry methods demonstrated themselves as the most efficient to discover novel DBP and quantify the regulated ones. The same methods are also used to study the mechanisms of aquatic chlorination of organic compounds.
Tags: aquatic chlorination chemical reactions mechanisms chromatography-mass spectrometry disinfection by-products drinking water водное хлорирование механизмы химических реакций питьевая вода побочные продукты дезинфекции хромато-масс-спектрометрия
B. L. Milman, I. K. Zhurkovich
A popularity of chemical compounds. What is it about? DOI: 10.22184/2227-572X.2020.10.6.464.469
A statistics of chemical compounds popularity as their occurrence in modern chemical databases, is considered in the article. These data reflect the relative values of certain chemical compounds in science research and human practice and their occurrence in nature and artificial materials. A compound popularity can be evaluated by means of its indicators connected to particular databases. The features under consideration have been used in a rapidly developing non-target analysis.
A popularity of chemical compounds. What is it about? DOI: 10.22184/2227-572X.2020.10.6.464.469
A statistics of chemical compounds popularity as their occurrence in modern chemical databases, is considered in the article. These data reflect the relative values of certain chemical compounds in science research and human practice and their occurrence in nature and artificial materials. A compound popularity can be evaluated by means of its indicators connected to particular databases. The features under consideration have been used in a rapidly developing non-target analysis.
Tags: databases mass spectrometry non-target analysis popularity statistics базы данных масс-спектрометрия нецелевой анализ популярность статистика
A. M. Safiulina, N. E. Borisova, A. V. Lizunov, A. A. Semenov, M. S. Grigor’ev, D. V. Baulin, V. E. Baulin, A. Yu. Tsivadze
Features of the extraction of U(VI), Th(IV), and REE(III) derivatives 2-((diphenylphosphoryl) methoxyphenyl) diphenylphosphine oxide DOI: 10.22184/2227-572X.2020.10.6.470.488
In order to search for new effective extractants for f-elements, a comparative study of a number of 1,4 diphosphoryl compounds, including 2-((diphenylphosphoryl)methoxyphenyl) diphenylphosphine oxide 1 and its analogues 5–7, in which the group the phosphine oxide type is replaced by phosphonic fragments. Quantum-chemical modeling of the structures of phosphoryl podands 1 and 5–7 was performed, which were subsequently confirmed by the data of X-ray structural analysis. The features of the extraction of nitric acid, as well as U(VI), Th(IV), Nd(III), and Ho(III), from nitric acid media into 1,2 dichloroethane were studied. The composition of the extracted complexes has been determined.
Features of the extraction of U(VI), Th(IV), and REE(III) derivatives 2-((diphenylphosphoryl) methoxyphenyl) diphenylphosphine oxide DOI: 10.22184/2227-572X.2020.10.6.470.488
In order to search for new effective extractants for f-elements, a comparative study of a number of 1,4 diphosphoryl compounds, including 2-((diphenylphosphoryl)methoxyphenyl) diphenylphosphine oxide 1 and its analogues 5–7, in which the group the phosphine oxide type is replaced by phosphonic fragments. Quantum-chemical modeling of the structures of phosphoryl podands 1 and 5–7 was performed, which were subsequently confirmed by the data of X-ray structural analysis. The features of the extraction of nitric acid, as well as U(VI), Th(IV), Nd(III), and Ho(III), from nitric acid media into 1,2 dichloroethane were studied. The composition of the extracted complexes has been determined.
Tags: acid-type phosphoryl podandy concentration of u(vi) diphosphonic acids extraction nitric acid solutions separation of u(vi) th(iv) and ree(iii) th(iv) и рзэ(iii) азотнокислые растворы дифосфоновые кислоты концентрирование u(vi) разделение u(vi) фосфорилподанды кислотного типа экстракция
Analytical Methods and Instruments
N. G. Terentyeva, S. A. Togushakov, O. A. Shirykalova
Determination of fission products and impurity elements in solutions simulators of spent nuclear fuel by atomic emission spectrometry DOI: 10.22184/2227-572X.2020.10.6.490.496
Suggested method eliminates U and Pu interfere influence on determination of fission products and impurity elements in solutions of spent nuclear fuel by spectrometer calibrating using solutions with the same U and Pu concentrations as in analyzing samples. Concentration of stable isotopes imitated fission products and impurities in solutions simulators of spent nuclear fuel was determinated by atomic emission spectrometry with nitrogen microwave-ionization plasma in the presence of U, Pu, Np, Tc, Am, Cm, Pm.
Determination of fission products and impurity elements in solutions simulators of spent nuclear fuel by atomic emission spectrometry DOI: 10.22184/2227-572X.2020.10.6.490.496
Suggested method eliminates U and Pu interfere influence on determination of fission products and impurity elements in solutions of spent nuclear fuel by spectrometer calibrating using solutions with the same U and Pu concentrations as in analyzing samples. Concentration of stable isotopes imitated fission products and impurities in solutions simulators of spent nuclear fuel was determinated by atomic emission spectrometry with nitrogen microwave-ionization plasma in the presence of U, Pu, Np, Tc, Am, Cm, Pm.
Tags: americium atomic emission spectrometry with nitrogen microwave-ionization fission products neptunium plutonium solutions simulators продукты деления spent nuclear fuel technetium uranium америций атомно-эмиссионная спектрометрия c азотной микроволновой плазмо нептуний отработавшее ядерное топливо плутоний раствор-имитатор технеций уран
Historic chapters
Yu. A. Zolotov
Stars of Analytical Instrumentation. James Waters DOI: 10.22184/2227-572X.2020.10.6.498.500
Stars of Analytical Instrumentation. James Waters DOI: 10.22184/2227-572X.2020.10.6.498.500
Annual Issue