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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">RUDN Journal of Ecology and Life Safety</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Ecology and Life Safety</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Экология и безопасность жизнедеятельности</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2313-2310</issn><issn publication-format="electronic">2408-8919</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">33117</article-id><article-id pub-id-type="doi">10.22363/2313-2310-2022-30-4-574-583</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Environmental Monitoring</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Экологический мониторинг</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">Comparative analysis of fluorescent methods selectivity for ecotoxicants environmental monitoring</article-title><trans-title-group xml:lang="ru"><trans-title>Сравнительный анализ избирательности флуоресцентных методов для экологического мониторинга экотоксикантов</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2715-044X</contrib-id><name-alternatives><name xml:lang="en"><surname>Plotnikova</surname><given-names>Olga A.</given-names></name><name xml:lang="ru"><surname>Плотникова</surname><given-names>Ольга Александровна</given-names></name></name-alternatives><bio xml:lang="en"><p>Cand. Sc. in Chemistry, Associate Professor of the Department of Ecology and Technosphere Safety</p></bio><bio xml:lang="ru"><p>кандидат химических наук, доцент, доцент кафедры «Экология и техносферная безопасность»</p></bio><email>plotnikovaoa@sstu.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6030-7344</contrib-id><name-alternatives><name xml:lang="en"><surname>Tikhomirova</surname><given-names>Elena I.</given-names></name><name xml:lang="ru"><surname>Тихомирова</surname><given-names>Елена Ивановна</given-names></name></name-alternatives><bio xml:lang="en"><p>D. in Biology, Professor, Head of the Department of Ecology and Technosphere Safety</p></bio><bio xml:lang="ru"><p>доктор биологических наук, профессор, заведующая кафедрой «Экология и техносферная безопасность»</p></bio><email>tichomirovaei@sstu.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4708-2256</contrib-id><name-alternatives><name xml:lang="en"><surname>Melnikov</surname><given-names>Gennadyi V.</given-names></name><name xml:lang="ru"><surname>Мельников</surname><given-names>Геннадий Васильевич</given-names></name></name-alternatives><bio xml:lang="en"><p>D. in Chemistry, Professor of the Department of Physics</p></bio><bio xml:lang="ru"><p>доктор химических наук, профессор, профессор кафедры «Физика»</p></bio><email>melnikov_gv@sstu.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Yuri Gagarin Saratov State Technical University</institution></aff><aff><institution xml:lang="ru">Саратовский государственный технический университет имени Гагарина Ю.А</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2022-12-30" publication-format="electronic"><day>30</day><month>12</month><year>2022</year></pub-date><volume>30</volume><issue>4</issue><issue-title xml:lang="en">VOL 30, NO4 (2022)</issue-title><issue-title xml:lang="ru">ТОМ 30, №4 (2022)</issue-title><fpage>574</fpage><lpage>583</lpage><history><date date-type="received" iso-8601-date="2022-12-30"><day>30</day><month>12</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2022, Plotnikova O.A., Tikhomirova E.I., Melnikov G.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2022, Плотникова О.А., Тихомирова Е.И., Мельников Г.В.</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="en">Plotnikova O.A., Tikhomirova E.I., Melnikov G.V.</copyright-holder><copyright-holder xml:lang="ru">Плотникова О.А., Тихомирова Е.И., Мельников Г.В.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/ecology/article/view/33117">https://journals.rudn.ru/ecology/article/view/33117</self-uri><abstract xml:lang="en"><p style="text-align: justify;">A comparative analysis of classical and synchronous fluorescent methods selectivity for ecotoxicants determination of polycyclic aromatic hydrocarbons (PAHs) was carried out. PAHs sorption preconcentration from aqueous cetyltrimethylammonium bromide micellar solutions and spectra recording on a viscose matrix were used. In the case of complex environmental samples, the scope of fluorimetric analysis can be expanded by registering synchronous fluorescence spectra obtained by simultaneously scanning the excitation and emission wavelengths with a constant shift: λem - λex = Δλ = const. The composition of PAHs mixture (phenanthrene, anthracene, fluorene, pyrene) was experimentally evaluated by classical fluorescence with selective excitation and synchronous fluorescence. It was concluded that the use of synchronous spectra makes it possible to improve the selectivity of the PAHs fluorescence analysis in a mixture. These methods can be successfully applied to identify individual PAHs in monitoring of environment water bodies.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;">Проведен сравнительный анализ избирательности классического и синхронного флуоресцентных методов определения экотоксикантов полициклических ароматических углеводородов (ПАУ). Применялось сорбционное концентрирование ПАУ из водномицеллярных растворов цетилтриметиламмония бромида и регистрация спектров на вискозной матрице. В случае сложных проб окружающей среды область применения флуориметрического анализа может быть расширена с помощью регистрации синхронных спектров флуоресценции, получаемых при одновременном сканировании длин волн возбуждения и испускания с постоянным сдвигом: λисп- λвозб = Δλ = const. Экспериментально проведена оценка состава смеси ПАУ (фенантрен, антрацен, флуорен, пирен) методами классической флуоресценции с селективным возбуждением и синхронной флуоресценции. Сделан вывод о том, что применение синхронных спектров позволяет улучшить избирательность флуоресцентного анализа ПАУ в смеси. Данные методы могут быть успешно применены для идентификации отдельных ПАУ при экологическом мониторинге экотоксикантов в водных объектах окружающей среды.</p></trans-abstract><kwd-group xml:lang="en"><kwd>fluorescence analysis</kwd><kwd>simultaneous scanning</kwd><kwd>polycyclic aromatic hydrocarbons</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>флуоресцентный анализ</kwd><kwd>синхронное сканирование</kwd><kwd>полициклические ароматические углеводороды</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Lawal AT. Polycyclic aromatic hydrocarbons. A review. Cogent Environmental Science. 2017;3(1):1339841. https://doi.org/10.1080/23311843.2017.1339841</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Matuszewska A, Czaja M. 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