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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Hygiene and Sanitation</journal-id><journal-title-group><journal-title xml:lang="en">Hygiene and Sanitation</journal-title><trans-title-group xml:lang="ru"><trans-title>Гигиена и санитария</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0016-9900</issn><issn publication-format="electronic">2412-0650</issn><publisher><publisher-name xml:lang="en">Federal Scientific Center of Hygiene named after F.F. Erisman</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">638997</article-id><article-id pub-id-type="doi">10.47470/0016-9900-2022-101-9-1103-1110</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>METHODS OF HYGIENIC AND EXPERIMENTAL INVESTIGATIONS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>МЕТОДЫ ГИГИЕНИЧЕСКИХ ИССЛЕДОВАНИЙ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Methodological features of chromato-mass spectrometric identification of organic compounds in the air during landscape fires</article-title><trans-title-group xml:lang="ru"><trans-title>Методические особенности хромато-масс-спектрометрической идентификации органических соединений в воздушной среде при ландшафтных пожарах</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4980-5304</contrib-id><name-alternatives><name xml:lang="en"><surname>Alekseenko</surname><given-names>Anton N.</given-names></name><name xml:lang="ru"><surname>Алексеенко</surname><given-names>Антон Николаевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD, senior researcher, Laboratory of analytical ecotoxicology and biomonitoring of the East-Siberian Institution of Medical and Ecological Research, Angarsk, 665827, Russian Federation.</p><p>e-mail: alexeenko85@mail.ru</p></bio><bio xml:lang="ru"><p>Канд. хим. наук, ст. науч. сотр. лаб. аналитической экотоксикологии и биомониторинга, ФГБНУ «Восточно-Сибирский институт медико-экологических исследований», 665827, Ангарск.</p><p>e-mail: alexeenko85@mail.ru</p></bio><email>alexeenko85@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9961-6408</contrib-id><name-alternatives><name xml:lang="en"><surname>Zhurba</surname><given-names>Olga M.</given-names></name><name xml:lang="ru"><surname>Журба</surname><given-names>О. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8165-8052</contrib-id><name-alternatives><name xml:lang="en"><surname>Vokina</surname><given-names>Vera A.</given-names></name><name xml:lang="ru"><surname>Вокина</surname><given-names>В. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7848-6432</contrib-id><name-alternatives><name xml:lang="en"><surname>Merinov</surname><given-names>Alexey V.</given-names></name><name xml:lang="ru"><surname>Меринов</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8740-3133</contrib-id><name-alternatives><name xml:lang="en"><surname>Shayakhmetov</surname><given-names>Salim F.</given-names></name><name xml:lang="ru"><surname>Шаяхметов</surname><given-names>С. Ф.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">East-Siberian Institute of Medical and Ecological Research</institution></aff><aff><institution xml:lang="ru">ФГБНУ «Восточно-Сибирский институт медико-экологических исследований»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2022-10-08" publication-format="electronic"><day>08</day><month>10</month><year>2022</year></pub-date><volume>101</volume><issue>9</issue><fpage>1103</fpage><lpage>1110</lpage><history><date date-type="received" iso-8601-date="2024-10-25"><day>25</day><month>10</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Alekseenko A.N., Zhurba O.M., Vokina V.A., Merinov A.V., Shayakhmetov S.F.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Алексеенко А.Н., Журба О.М., Вокина В.А., Меринов А.В., Шаяхметов С.Ф.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Alekseenko A.N., Zhurba O.M., Vokina V.A., Merinov A.V., Shayakhmetov S.F.</copyright-holder><copyright-holder xml:lang="ru">Алексеенко А.Н., Журба О.М., Вокина В.А., Меринов А.В., Шаяхметов С.Ф.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2023-09-30"/></permissions><self-uri xlink:href="https://journals.eco-vector.com/0016-9900/article/view/638997">https://journals.eco-vector.com/0016-9900/article/view/638997</self-uri><abstract xml:lang="en"><p><italic><bold>Introduction.</bold> In landscape fires, the question of the nature and character of the formed organic substances remains unexplored. The method of gas chromatography with mass spectrometric detection (GC-MS) has long been used in environmental analysis to identify organic compounds in complex multicomponent mixtures. Depending on the volatility and polarity of the components of organic compounds, air sampling is carried out on a solid sorbent, liquid absorber, fiber filter.</italic></p><p><italic><bold>The purpose of this study</bold> is to develop a comprehensive procedure for the identification of organic compounds by gas chromatography-mass spectrometry with sampling into different absorption media.</italic></p><p><italic><bold>Materials and methods.</bold> The studies were carried out in laboratory conditions specially created in the smoldering plant, seed chamber, chemical-analytical equipment. Biomass consisting of forest litter was used as a fuel substrate: moss, lichen, tree litter, branches, pieces of bark. An Agilent 5975 gas chromatography-mass spectrometer was used for GC-MS identification. An aspirator, a gas pipette, a Richter absorber with distilled water, and an AFA-HP-20 fiber filter were used to select the air medium. Sample preparation of concentrated air was carried out using microfibre “85 microns Carboxen/PDMS”, thermostat, vials for vapor phase analysis, ultrasonic bath, derivatizing reagent — o-pentafluorobenzylhydroxylamine, hexane.</italic></p><p><italic><bold>Results.</bold> A proposed complex procedure includes sampling into different absorption media, various sample preparation options. Extraction of organic compounds from absorption media was carried out by methods of solid-phase microextraction, derivatization, and liquid extraction. Volatile organic compounds were extracted from a gas bulb by the method of solid-phase microextraction on microfibre“85 microns Carboxen/PDMS”. Aldehydes and ketones were found in distilled water due to the derivatization of o-pentafluorobenzylhydroxylamine. Semi-volatile compounds were detected on the AFA-HP-20 filter due to liquid extraction in ultrasound.</italic></p><p><italic><bold>Limitations.</bold> The limitations of the study are related to the need to select the products of decay of a sample of forest litter under model conditions.</italic></p><p><italic><bold>Conclusion.</bold> The identification results showed that the following classes of substances released into the air during the burning of forest litter are present in the maximum amount: aldehydes, phenols, terpenes. The coefficient of coincidence of mass spectra also confirmed by the coincidence of experimental and library retention indices also confirmed by the coincidence of experimental and library retention indices is more than 90%.</italic></p><p><italic><bold>Compliance with ethical standards.</bold> The study does not require the submission of the conclusion of the Biomedical Ethics Committee or other documents.</italic></p><p><bold>Contribution:</bold> <italic>Alekseenko A.N.</italic> — concept and design of research, material collection and data processing, mathematical processing, text writing; <italic>Zhurba O.M. </italic>— material collection and data processing; <italic>Vokina V.A.</italic> — material collection and data processing; <italic>Merinov A.V. </italic>— mathematical processing; <italic>Shayakhmetov S.F.</italic> — text writing. <italic>All authors</italic> are responsible for the integrity of all parts of the manuscript and approval of the manuscript final version. </p><p><bold>Conflict of interest.</bold> The authors declare no conflict of interest. </p><p><bold>Acknowledgement.</bold> The study had no sponsorship. </p><p>Received: May 30, 2022 / Accepted: August 04, 2022 / Published: September 30, 2022 </p></abstract><trans-abstract xml:lang="ru"><p><italic><bold>Введение. </bold>Природа и характер органических веществ, образующихся при ландшафтных пожарах, до настоящего времени остаются малоизученными. Метод газовой хроматографии с масс-спектрометрическим детектированием (ГХ-МС) уже давно используется в экологическом анализе для идентификации органических соединений в сложных многокомпонентных смесях. В зависимости от летучести и полярности компонентов органических соединений отбор воздуха производят на твёрдый сорбент, жидкий поглотитель, волокнистый фильтр.</italic></p><p><italic><bold>Цель исследования </bold>— разработать комплексную процедуру идентификации органических соединений методом газовой хромато-масс-спектрометрии с отбором в разные поглотительные среды.</italic></p><p><italic><bold>Материалы и методы.</bold> Исследования проводили с использованием химико-аналитического оборудования в лабораторных условиях, созданных специально в установке тления, затравочной камере. В качестве горючего субстрата использовали биомассу, состоящую из лесной подстилки: мха, лишайника, древесного опада, веток, кусков коры. Для ГХ-МС-идентификации применяли газовый хромато-масс-спектрометр Agilent 5975. Для отбора проб воздушной среды использовали аспиратор, газовую пипетку, поглотитель Рихтера с дистиллированной водой, волокнистый фильтр АФА-ХП-20. Пробоподготовку концентрированной пробы воздуха осуществляли с помощью микроволокна Carboxen/PDMS 85 мкм, термостата, флаконов для парофазного анализа, ультразвуковой ванны, дериватизирующего реагента — о-пентафторбензилгидроксиламина, гексана.</italic></p><p><italic><bold>Результаты.</bold> Предложена комплексная процедура, включающая в себя отбор в разные поглотительные среды, различные варианты пробоподготовки. Извлечение органических соединений из поглотительных сред осуществляли методами твердофазной микроэкстракции, дериватизации, жидкостной экстракции. Из газовой пипетки извлекали летучие органические соединения методом твердофазной микроэкстракции на микроволокно Carboxen/PDMS 85 мкм. В дистиллированной воде за счёт дериватизации ο-пентафторбензилгидроксиламином были выявлены альдегиды и кетоны, на фильтре АФА-ХП-20 благодаря жидкостной экстракции в ультразвуке удалось обнаружить полулетучие соединения.</italic></p><p><italic><bold>Ограничения исследования.</bold> Ограничения исследования связаны с необходимостью проведения отбора продуктов горения образца лесной подстилки в модельных условиях.</italic></p><p><italic><bold>Заключение.</bold> Результаты идентификации показали, что в максимальном количестве присутствуют вещества следующих классов, выделяющиеся в воздушную среду при горении лесной подстилки: альдегиды, фенолы, терпены. Коэффициент совпадения масс-спектров составляет более 90%, что также подтверждается совпадением экспериментальных и библиотечных индексов удерживания.</italic></p><p><italic><bold>Соблюдение этических стандартов.</bold> Исследование не требует представления заключения комитета по биомедицинской этике или иных документов.</italic></p><p><bold>Участие авторов:</bold> <italic>Алексеенко А.Н.</italic> — концепция и дизайн исследования, сбор материала и обработка данных, математическая обработка, написание текста; <italic>Журба О.М.</italic> — сбор материала и обработка данных; <italic>Вокина В.А.</italic> — сбор материала и обработка данных; <italic>Меринов А.В.</italic> — математическая обработка; <italic>Шаяхметов С.Ф.</italic> — написание текста. <italic>Все соавторы</italic> — утверждение окончательного варианта статьи, ответственность за целостность всех частей статьи.</p><p><bold>Конфликт интересов.</bold> Авторы декларируют отсутствие явных и потенциальных конфликтов интересов в связи с публикацией данной статьи.</p><p><bold>Финансирование.</bold> Исследование не имело спонсорской поддержки.</p><p>Поступила: 30.05.2022 / Принята к печати: 04.08.2022 / Опубликована: 30.09.2022</p></trans-abstract><kwd-group xml:lang="en"><kwd>chromato-mass spectrometric identification</kwd><kwd>air sample</kwd><kwd>absorption media</kwd><kwd>volatile and semi-volatile organic compounds</kwd><kwd>landscape fires</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>хромато-масс-спектрометрическая идентификация</kwd><kwd>воздушный образец</kwd><kwd>поглотительные среды</kwd><kwd>летучие и полулетучие органические соединения</kwd><kwd>ландшафтные пожары</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Dimopoulou M., Giannikos I. 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