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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">zhps</journal-id><journal-title-group><journal-title xml:lang="ru">Журнал прикладной спектроскопии</journal-title><trans-title-group xml:lang="en"><trans-title>Zhurnal Prikladnoii Spektroskopii</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0514-7506</issn><publisher><publisher-name>B. I. Stepanov Institute of Physics of the National Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.47612/12/0514-7506-2022-89-1-24-29</article-id><article-id custom-type="elpub" pub-id-type="custom">zhps-928</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>II. МОЛЕКУЛЯРНАЯ СПЕКТРОСКОПИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MOLECULAR SPECTROSCOPY</subject></subj-group></article-categories><title-group><article-title>Анализ продуктов реакции L-цистеина с соединениями Fe(III) в кислой среде</article-title><trans-title-group xml:lang="en"><trans-title>Analysis of the Products of the L-Cysteine Reaction with Fe(III) Compounds in an Acidic Medium</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>Берестова</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Berestova</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Уфа; Башкортостан</p></bio><bio xml:lang="en"><p>Ufa; Bashkortostan</p></bio><email xlink:type="simple">berestovatv@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>Низаметдинова</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Nizametdinova</surname><given-names>L. А.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Уфа; Башкортостан</p></bio><bio xml:lang="en"><p>Ufa, Bashkortostan</p></bio><email xlink:type="simple">face@neicon.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>Лусина</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Lusina</surname><given-names>О. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Уфа; Башкортостан</p></bio><bio xml:lang="en"><p>Ufa; Bashkortostan</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>Лобов</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Lobov</surname><given-names>А. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Уфа; Башкортостан</p></bio><bio xml:lang="en"><p>Ufa; Bashkortostan</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>Мустафин</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Mustafin</surname><given-names>А. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Уфа; Башкортостан</p></bio><bio xml:lang="en"><p>Ufa; Bashkortostan</p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Башкирский государственный университет</institution></aff><aff xml:lang="en"><institution>Bashkir State University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Уфимский институт химии УФИЦ РАН</institution></aff><aff xml:lang="en"><institution>Ufa Institute of Chemistry UFRC of the Russian Academy of Sciences</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Башкирский государственный университет;  Уфимский институт химии УФИЦ РАН</institution></aff><aff xml:lang="en"><institution>Bashkir State University; Ufa Institute of Chemistry UFRC of the Russian Academy of Sciences</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>02</day><month>02</month><year>2022</year></pub-date><volume>89</volume><issue>1</issue><fpage>24</fpage><lpage>29</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Берестова Т.В., Низаметдинова Л.А., Лусина О.В., Лобов А.Н., Мустафин А.Г., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Берестова Т.В., Низаметдинова Л.А., Лусина О.В., Лобов А.Н., Мустафин А.Г.</copyright-holder><copyright-holder xml:lang="en">Berestova T.V., Nizametdinova L.А., Lusina О.V., Lobov А.N., Mustafin А.G.</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://zhps.ejournal.by/jour/article/view/928">https://zhps.ejournal.by/jour/article/view/928</self-uri><abstract><sec><title> </title><p> </p><p>Изучено взаимодействие раствора L-цистеина с соединениями железа(III) FeCl3, Fe2(SO4)3, Fe(NO3)3 в кислой среде (рН 2). Показано, что реакция проходит в течение 30 мин с образованием L-цистина (21–40 %) в качестве основного продукта. Установлено, что реакция L-цистеина с FeCl3 приводит к образованию в растворе L-цистеинсульфоновой кислоты в качестве побочного продукта. Интерпретация продуктов реакции L-цистеина с соединениями Fe(III) проведена методами ИК- и ЯМР-спектроскопии.</p></sec><sec><title> </title><p> </p></sec></abstract><trans-abstract xml:lang="en"><p>The interaction of the L-cysteine solution with iron(III) compounds of FeCl3, Fe2(SO4)3, Fe(NO3)3 was studied in an acidic medium (pH 2). It was shown that the reaction proceeded 30 minutes with the formation of L-cystine (21–40%) as the main product. It was found that the L-cysteine reaction with FeCl3 leads to the formation of the L-cysteine sulfinic acid in the solution as a by-product. The products of the L-cysteine reaction with Fe(III) compounds were interpreted by IR and NMR spectroscopy.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>окисление L-цистеина</kwd><kwd>L-цистин</kwd><kwd>L-цистеинсульфоновая кислота</kwd><kwd>ИК-спектроскопия</kwd><kwd>ЯМР-спектроскопия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>oxidation of L-cysteine</kwd><kwd>L-cystine</kwd><kwd>L-cysteine sulfonic acid</kwd><kwd>IR-spectroscopy</kwd><kwd>NMR-spectroscopy</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">K. Ulrich, U. Jakob. Free Radic. Biol. Med., 140 (2019) 14—27.</mixed-citation><mixed-citation xml:lang="en">K. Ulrich, U. Jakob. Free Radic. Biol. Med., 140 (2019) 14—27.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">H. F. Gilbert. 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