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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">zldm</journal-id><journal-title-group><journal-title xml:lang="ru">Заводская лаборатория. Диагностика материалов</journal-title><trans-title-group xml:lang="en"><trans-title>Industrial laboratory. Diagnostics of materials</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1028-6861</issn><issn pub-type="epub">2588-0187</issn><publisher><publisher-name>ООО «Издательство «ТЕСТ-ЗЛ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26896/1028-6861-2025-91-12-14-19</article-id><article-id custom-type="elpub" pub-id-type="custom">zldm-2668</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>АНАЛИЗ ВЕЩЕСТВА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SUBSTANCES ANALYSIS</subject></subj-group></article-categories><title-group><article-title>Изучение распределения марганца между поверхностной сегрегацией MnOx и кристаллической структурой SnO2 в нанокомпозитах SnO2/MnOx методом масс-спектрометрии с индуктивно-связанной плазмой</article-title><trans-title-group xml:lang="en"><trans-title>Investigation of manganese distribution between MnOx surface segregation and SnO2 crystal structure in SnO2/MnOx nanocomposites by inductively coupled plasma mass spectrometry</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>Эшмаков</surname><given-names>Р. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Eshmakov</surname><given-names>R. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Родион Сергеевич Эшмаков</p><p>119991, Москва, Ленинские горы, д. 1</p><p>119991, Москва, Ленинские горы, д. 1, стр 3</p></bio><bio xml:lang="en"><p>Rodion S. Eshmakov</p><p>1, bld. 3, Leninskie gory, Moscow, 119991</p><p>1, bld. 3, Leninskie gory, Moscow, 119991</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шерстобитов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sherstobitov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андрей Васильевич Шерстобитов</p><p>119991, Москва, Ленинские горы, д. 1</p></bio><bio xml:lang="en"><p>Andrey V. Sherstobitov</p><p>1, bld. 3, Leninskie gory, Moscow, 119991</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Филатова</surname><given-names>Д. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Filatova</surname><given-names>D. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дарья Геннадьевна Филатова</p><p>119991, Москва, Ленинские горы, д. 1</p><p>119991, Москва, Ленинские горы, д. 1, стр 3</p></bio><bio xml:lang="en"><p>Daria G. Filatova</p><p>1, bld. 3, Leninskie gory, Moscow, 119991</p><p>1, bld. 3, Leninskie gory, Moscow, 119991</p></bio><email xlink:type="simple">gak1.analyt@gmail.com</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>Румянцева</surname><given-names>М. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Rumyantseva</surname><given-names>M. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Марина Николаевна Румянцева</p><p>119991, Москва, Ленинские горы, д. 1</p><p>119991, Москва, Ленинские горы, д. 1, стр 3</p></bio><bio xml:lang="en"><p>Marina N. Rumyantseva</p><p>1, bld. 3, Leninskie gory, Moscow, 119991</p><p>1, bld. 3, Leninskie gory, Moscow, 119991</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский государственный университет имени М. В. Ломоносова, химический факультет; Центр НТИ «Технологии снижения антропогенного воздействия»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lomonosov Moscow State University, Department of Chemistry; National Technology Initiative Center «Technologies of Reduction of Anthropogenic Influence»</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Московский государственный университет имени М. В. Ломоносова, химический факультет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lomonosov Moscow State University, Department of Chemistry</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>24</day><month>12</month><year>2025</year></pub-date><volume>91</volume><issue>12</issue><fpage>14</fpage><lpage>19</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Эшмаков Р.С., Шерстобитов А.В., Филатова Д.Г., Румянцева М.Н., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Эшмаков Р.С., Шерстобитов А.В., Филатова Д.Г., Румянцева М.Н.</copyright-holder><copyright-holder xml:lang="en">Eshmakov R.S., Sherstobitov A.V., Filatova D.G., Rumyantseva M.N.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" 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.zldm.ru/jour/article/view/2668">https://www.zldm.ru/jour/article/view/2668</self-uri><abstract><p>Предложен подход к определению марганца раздельно на поверхности и в объеме нанокомпозитов SnO2/MnOx для установления связи «условия синтеза – состав», включающий определение валового содержания Mn и Sn в растворах композита и Mn на его поверхности методом масс-спектрометрии с индуктивно-связанной плазмой (ИСП-МС) с последующим расчетом содержания добавки в объеме материала. В качестве реагента кислотного восстановительного травления для определения марганца на поверхности исследованы растворы HCl, H2C2O4, Na4P2O7 и формальдоксима. Показано, что при обработке поверхности образцов раствором формальдоксима при 20 °C марганец на поверхности образца растворяется, в то время как олово в раствор не переходит. Разработана четырехступенчатая температурная программа для перевода в раствор SnO2, синтезированного при высокой температуре, в смеси кислот в автоклаве с микроволновой интенсификацией для последующего определения Mn и Sn методом ИСП-МС. Показано, что применение внутренних стандартов Mn/Cu и Sn/Rh позволяет снизить относительное стандартное отклонение результатов анализа (sr) до 0,02. На основании полученных результатов определения Mn и Sn на поверхности и общего содержания рассчитано распределение марганца в композитах SnO2/MnOx между поверхностью и объемом. Показано, что марганец распределен между объемом и поверхностью образов неравномерно. С увеличением времени отжига содержание марганца на поверхности композита снижается за счет диффузии добавки внутрь частицы SnO2.</p></abstract><trans-abstract xml:lang="en"><p>An approach to the determination of manganese separately on the surface and in the volume of SnO2/MnOx nanocomposites is proposed to establish the «synthesis conditions – composition» relationship. The approach includes the determination of the total content of Mn and Sn in solutions of composite and Mn on its surface by the ICP MS, followed by the calculation of the additive content in the volume of the material. Solutions of HCl, H2C2O4, Na4P2O7, and formaldoxime were studied as acid reduction etching reagents for the determination of manganese on the surface. It is shown that when the surface of the samples is treated with a formaldoxime solution at 20°C, manganese dissolves on the surface of the sample, while tin does not pass into the solution. A 4- step temperature program transferring SnO2 synthesized at high temperature to a solution using a mixture of acids in an autoclave with microwave intensification has been developed for subsequent determination of the Mn and Sn content by the ICP MS method. It is shown that the application of internal Mn/Cu and Sn/Rh standards makes it possible to reduce the relative standard deviation of the analysis results (sr) to 0.02. Based on the obtained results of the determination of Mn and Sn on the surface and the total content, the distribution of manganese in SnO2/MnOx composites between the surface and volume is calculated. It is shown that manganese is distributed unevenly between the volume and the surface of the samples. As the annealing time increases, the manganese content on the surface of the composite decreases due to the diffusion of the additive into the SnO2 particle.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>нанокомпозиты SnO2/MnOx</kwd><kwd>формальдоксим</kwd><kwd>масс спектрометрия с индуктивно связанной плазмой</kwd><kwd>газочувствительные сенсоры</kwd></kwd-group><kwd-group xml:lang="en"><kwd>SnO2/MnOx nanocomposites</kwd><kwd>formaldoxime</kwd><kwd>inductively coupled plasma mass spectrometry</kwd><kwd>gas-sensitive sensors</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Фонда НТИ в рамках Договора от 22.12.2022 No 70-2022-001307. Исследования проводили с использованием оборудования ЦКП МГУ по программе «Технологии получения новых наноструктурных материалов и их комплексное исследование», созданной в рамках Программы обновления оборудования (Национальный проект «Наука») и Программы развития МГУ (спектрометр 5800 VDV, Agilent Technologies, США).</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">Krivetskiy V. V., Rumyantseva M. N., Gaskov A. M. Chemical modification of nanocrystalline tin dioxide for selective gas sensors / Russ. Chem. Rev. 2013. Vol. 82. No. 10. P. 917 – 941. DOI: 10.1070/rc2013v082n10abeh004366</mixed-citation><mixed-citation xml:lang="en">Krivetskiy V. V., Rumyantseva M. N., Gaskov A. M. Chemical modification of nanocrystalline tin dioxide for selective gas sensors / Russ. Chem. Rev. 2013. Vol. 82. No. 10. P. 917 – 941. 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