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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">geophystech</journal-id><journal-title-group><journal-title xml:lang="ru">Геофизические технологии</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Journal of Geophysical Technologies</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2619-1563</issn><publisher><publisher-name>IPGG SB RAS</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18303/2619-1563-2022-4-41</article-id><article-id custom-type="elpub" pub-id-type="custom">geophystech-271</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Статьи</subject></subj-group></article-categories><title-group><article-title>Новый подход к измерению комбинированного изотопного состава метана с целью его генетической характеризации</article-title><trans-title-group xml:lang="en"><trans-title>The new approach to determination of the combined isotopic composition of methane for its genetic characterization</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Макась</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Makas</surname><given-names>A. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кандидат технических наук, ведущий научный сотрудник лаборатории полевых аналитических и измерительных технологий Института нефтегазовой геологии и геофизики СО РАН. Основные научные интересы: разработка малогабаритной масс-спектрометрической аппаратуры для внелабораторного анализа следов органических веществ в сложных матрицах при решении задач специального химического контроля и поисковой геохимии.</p></bio><email xlink:type="simple">MakasAL@ipgg.sbras.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кудрявцев</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kudryavtsev</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Научный сотрудник лаборатории полевых аналитических и измерительных технологий Института нефтегазовой геологии и геофизики СО РАН. Основные научные интересы: физика процессов образования, транспортировки и разделения ионов применительно к задачам создания малогабаритной масс-спектрометрической аппаратуры.</p></bio><email xlink:type="simple">KudryavcevAS@ipgg.sbras.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Трошков</surname><given-names>М. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Troshkov</surname><given-names>M. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ведущий инженер лаборатории полевых аналитических и измерительных технологий Института нефтегазовой геологии и геофизики СО РАН. Основные научные интересы: разработка полевой хромато-масс-спектрометрической аппаратуры для внелабораторного анализа.</p></bio><email xlink:type="simple">TroshkovML@ipgg.sbras.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Институт нефтегазовой геологии и геофизики им. А.А. Трофимука СО РАН&lt;br&gt;&#13;
630090, Новосибирск, просп. Акад. Коптюга, 3<country>Россия</country></aff><aff xml:lang="en">Trofimuk Institute of Petroleum Geology and Geophysics SB RAS&lt;br&gt;&#13;
Koptyug Ave., 3, Novosibirsk, 630090<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>10</day><month>04</month><year>2023</year></pub-date><volume>0</volume><issue>4</issue><fpage>41</fpage><lpage>53</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Макась А.Л., Кудрявцев А.С., Трошков М.Л., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Макась А.Л., Кудрявцев А.С., Трошков М.Л.</copyright-holder><copyright-holder xml:lang="en">Makas A.L., Kudryavtsev A.S., Troshkov M.L.</copyright-holder><license license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.rjgt.ru/jour/article/view/271">https://www.rjgt.ru/jour/article/view/271</self-uri><abstract><p>Предложен и обоснован новый подход к измерению комбинированного изотопного состава метильной группы метана 16МCH3, основанный на плазмохимической конверсии в воздухе метана в метанол, и его последующем анализе на масс-спектрометре с положительной химической ионизацией при атмосферном давлении. Предложенный подход упрощает технологию генетической характеризации метана по сравнению с традиционной и позволяет в перспективе создать аппаратуру для выполнения внелабораторных анализов.</p></abstract><trans-abstract xml:lang="en"><p>A new approach to mass-spectrometric determination of the combined isotopic composition of methane has been put forward. The approach is based on the preliminary on-line conversion of methane to methanol in corona discharge and selective chemical ionization. The approach provides means to lower requirements for equipment, consumables, and operation conditions and offers a challenge to develop a new field method.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Изотопный состав метана</kwd><kwd>масс-спектрометрия с ионизацией при атмосферном давлении</kwd><kwd>генетические типы метана</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Isotopic composition of methane</kwd><kwd>atmospheric pressure mass-spectrometry</kwd><kwd>genetic types of methane</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Работа выполнена в рамках проекта Программы фундаментальных научных исследований РФ FWZZ-2022-0027 "Новые технологии внелабораторного химического анализа и контроля, прецизионных измерений физических полей природных и техногенных объектов".</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Макась А.Л., Трошков М.Л., Кудрявцев А.С. 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