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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Sensory Systems</journal-id><journal-title-group><journal-title xml:lang="en">Sensory Systems</journal-title><trans-title-group xml:lang="ru"><trans-title>Сенсорные системы</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0235-0092</issn><issn publication-format="electronic">3034-5936</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">696751</article-id><article-id pub-id-type="doi">10.7868/S3034593625030036</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>ОБЗОРЫ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Disease detection by volatile organic compound analysis: II. Direct sample injection mass spectrometry</article-title><trans-title-group xml:lang="ru"><trans-title>Обнаружение заболеваний по анализу летучих органических соединений: II. Масс-спектрометрия с прямым вводом пробы</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Nikiforov</surname><given-names>S. M.</given-names></name><name xml:lang="ru"><surname>Никифоров</surname><given-names>С. М.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pento</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Пенто</surname><given-names>А. В.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kiryukhina</surname><given-names>O. O.</given-names></name><name xml:lang="ru"><surname>Кирюхина</surname><given-names>О. О.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Rodionova</surname><given-names>E. I.</given-names></name><name xml:lang="ru"><surname>Родионова</surname><given-names>Е. И.</given-names></name></name-alternatives><email>a.rodionova@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of General Physics of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт общей физики им. А.М. Прохорова Российской академии наук</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Federal State Budgetary Institution of Science Institute for Information Transmission Problems named after A.A. Kharkevich RAS</institution></aff><aff><institution xml:lang="ru">Федеральное государственное бюджетное учреждение науки Институт проблем передачи информации им. А.А. Харкевича РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2025</year></pub-date><volume>39</volume><issue>3</issue><issue-title xml:lang="en">VOL 39, NO3 (2025)</issue-title><issue-title xml:lang="ru">ТОМ 39, №3 (2025)</issue-title><fpage>25</fpage><lpage>37</lpage><history><date date-type="received" iso-8601-date="2025-11-21"><day>21</day><month>11</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Российская академия наук</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0235-0092/article/view/696751">https://journals.eco-vector.com/0235-0092/article/view/696751</self-uri><abstract xml:lang="en"><p>The results of the application of mass spectrometry with direct sample injection in the diagnosis of diseases in humans and laboratory animals are presented. Various methods for obtaining mass spectra of volatile organic compounds (VOCs) are considered, allowing VOCs analysis without using sample concentration and chromatographic separation. This approach, reminiscent of the work of trained sniffing dogs, ensures minimal sample analysis time and high sensitivity, which is extremely important for mass analysis. The authors’ own results on the development of a new method of VOC ionization for the analysis of biological samples are also presented.</p></abstract><trans-abstract xml:lang="ru"><p>В обзоре представлены результаты применения метода масс-спектрометрии с прямым вводом пробы в диагностике заболеваний человека и лабораторных животных. Рассмотрены различные способы получения масс-спектров летучих органических соединений (ЛОС), обеспечивающие возможность анализа ЛОС без применения концентрации пробы и хроматографического разделения. Такой подход, напоминающий работу собак-детекторов, обеспечивает минимальное время анализа пробы и высокую чувствительность, что исключительно важно для массового анализа. В обзор, в том числе, включены собственные результаты авторов по разработке нового способа ионизации ЛОС для применения в анализе биологических проб.</p></trans-abstract><kwd-group xml:lang="en"><kwd>mass spectrometry</kwd><kwd>volatile organic compounds</kwd><kwd>diagnosis of diseases</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>масс-спектрометрия</kwd><kwd>летучие органические соединения</kwd><kwd>диагностика заболеваний</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена без внешнего финансирования.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Тальрозе В.Л., Любимова А.К. Вторичные процессы в ионном источнике масс-спектрометра. ДАН СССР. 1952. Т. 86. 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