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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 custom-type="elpub" pub-id-type="custom">zhps-2100</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>АННОТАЦИИ АНГЛОЯЗЫЧНЫХ СТАТЕЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ABSTRACTS ENGLISH-LANGUAGE ARTICLES</subject></subj-group></article-categories><title-group><article-title>Оптимизированный метод жидкостной экстракции и спектрофотометрического определения концентрации Cr(VI) в загрязненной воде</article-title><trans-title-group xml:lang="en"><trans-title>Optimized Low-Cost Liquid‒Liquid Extraction Mode for the Removal and Spectrophotometric Determination of Cr(VI) from Polluted Water</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>Sadlapurkar</surname><given-names>A. V.</given-names></name><name name-style="western" xml:lang="en"><surname>Sadlapurkar</surname><given-names>Ashwini V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Научно-исследовательская лаборатория химии, Шри Шиваджи Махавидьялая, Барши</p><p>Солапур, Махараштра; Барши, Махараштра</p></bio><bio xml:lang="en"><p>Department of Chemistry, Nagesh Karajgi Orchid College of Engineering and Technology; Chemistry Research Laboratory, Department of Chemistry, Shri Shivaji Mahavidyalaya</p><p>Solapur, Maharashtra; Barshi, Maharashtra</p></bio><email xlink:type="simple">ashu24orchid@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>Barache</surname><given-names>U. B.</given-names></name><name name-style="western" xml:lang="en"><surname>Barache</surname><given-names>Umesh B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Научно-исследовательская лаборатория химии</p><p>Барши, Махараштра</p></bio><bio xml:lang="en"><p>Chemistry Research Laboratory, Department of Chemistry</p><p>Barshi, Maharashtra</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>Shaikh</surname><given-names>A. B.</given-names></name><name name-style="western" xml:lang="en"><surname>Shaikh</surname><given-names>Abdul B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Научно-исследовательская лаборатория химии</p><p>Барши, Махараштра</p></bio><bio xml:lang="en"><p>Chemistry Research Laboratory, Department of Chemistry</p><p>Barshi, Maharashtra</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>Gaikwad</surname><given-names>S. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Gaikwad,</surname><given-names>Shashikant H.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Научно-исследовательская лаборатория химии</p><p>Барши, Махараштра</p></bio><bio xml:lang="en"><p>Chemistry Research Laboratory, Department of Chemistry</p><p>Barshi, Maharashtra</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>Ghare</surname><given-names>A. A.</given-names></name><name name-style="western" xml:lang="en"><surname>Ghare</surname><given-names>Anita A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сатара, Махараштра</p></bio><bio xml:lang="en"><p>Department of Chemistry</p><p>Satara, Maharashtra</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Diwate</surname><given-names>A. V.</given-names></name><name name-style="western" xml:lang="en"><surname>Diwate</surname><given-names>Arati V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Солапур, Махараштра</p></bio><bio xml:lang="en"><p>Department of Chemistry</p><p>Solapur, Maharashtra</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Kamble</surname><given-names>G. S.</given-names></name><name name-style="western" xml:lang="en"><surname>Kamble</surname><given-names>Ganesh S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кольхапур, Махараштра</p></bio><bio xml:lang="en"><p>Department of Engineering Chemistry</p><p>Kolhapur, Maharashtra</p></bio><xref ref-type="aff" rid="aff-5"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Lokhande</surname><given-names>T. N.</given-names></name><name name-style="western" xml:lang="en"><surname>Lokhande</surname><given-names>Tukaram N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Научно-исследовательская лаборатория химии</p><p>Барши, Махараштра</p></bio><bio xml:lang="en"><p>Chemistry Research Laboratory, Department of Chemistry</p><p>Barshi, Maharashtra</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Инженерно-технологический колледж имени Нагеша Караджи; &#13;
Шри Шиваджи Махавидьялая</institution></aff><aff xml:lang="en"><institution>Nagesh Karajgi Orchid College of Engineering and Technology; &#13;
Shri Shivaji Mahavidyalaya</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Шри Шиваджи Махавидьялая</institution></aff><aff xml:lang="en"><institution>Shri Shivaji Mahavidyalaya</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Колледж исскуства, науки и коммерции Лал Бахадур Шастри</institution></aff><aff xml:lang="en"><institution>Lal Bahadur Shastri College of Arts, Science and Commerce</institution></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Колледж Сангамешвар</institution></aff><aff xml:lang="en"><institution>Sangameshwar College</institution></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>Кольхапурский технологический институт</institution></aff><aff xml:lang="en"><institution>Kolhapur Institute of Technology, College of Engineering (Empowered Autonomous)</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>22</day><month>01</month><year>2026</year></pub-date><volume>93</volume><issue>1</issue><fpage>147</fpage><lpage>147</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Sadlapurkar A.V., Barache U.B., Shaikh A.B., Gaikwad S.Н., Ghare A.A., Diwate A.V., Kamble G.S., Lokhande T.N., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Sadlapurkar A.V., Barache U.B., Shaikh A.B., Gaikwad S.Н., Ghare A.A., Diwate A.V., Kamble G.S., Lokhande T.N.</copyright-holder><copyright-holder xml:lang="en">Sadlapurkar A.V., Barache U.B., Shaikh A.B., Gaikwad, S.H., Ghare A.A., Diwate A.V., Kamble G.S., Lokhande T.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://zhps.ejournal.by/jour/article/view/2100">https://zhps.ejournal.by/jour/article/view/2100</self-uri><abstract><p>Разработан новый подход к жидкостно-жидкостной экстракции и спектрофотометрическому определению Cr(VI) с использованием 2-хлорбензальдегидтиокарбазида в дихлорэтане в качестве комплексообразующего реагента для Cr(VI) в присутствии йодида калия. В результате при комнатной температуре образуется тройной комплекс, при этом не требуется дополнительной очистки или предварительного концентрирования растворителя. Тройной комплекс [Cr(VI)-CBTCH-йодид] количественно восстановлен в дихлорэтане из 3.5 М раствора соляной кислоты. Максимальное поглощение достигалось при λmax = 415 нм, образец оставался стабильным в течение 72 ч. Метод показал предел обнаружения 0.32 мкг/мл, широкий рабочий диапазон до 10.25 мкг/мл и приемлемую точность (RSD &lt; 2%, n = 5). Молярный коэффициент поглощения и чувствительность по Санделлу для тройного комплекса составляют 0.3535×104 л/моль × см и 0.0147 мкг/см, коэффициент обогащения 2.496. С помощью логарифмической зависимости подтвержден состав комплекса [Cr(VI)-CBTCH-йодид] 1:2:2. Отсутствуют заметные последствия возможного взаимодействия ионов. С помощью этого подхода Cr(VI) успешно экстрагирован и определен одновременно из образцов сплавов, загрязненной воды и синтетических смесей. Чувствительность аналитического метода подтверждена путем выбора соответствующих экспериментальных условий.</p></abstract><trans-abstract xml:lang="en"><p>/</p><p>Chromium(VI), considered one of the most hazardous elements, directly affects human health and the environment. Therefore, in this study, a new approach is devised for liquid‒liquid extraction and spectrophotometric measurement of hexavalent chromium by employing a novel spectrophotometric reagent, where by 2-chlorobenzaldehyde Thiocarbohydrazone in dichloroethane is employed as a complexing reagent for chromium(VI) in the presence of potassium iodide, resulting in a yellow complex at room temperature. This approach offers a considerable benefit, being a straightforward procedure that does not require any extra solvent purification or preconcentration. The ternary [Cr(VI)-CBTCH-iodide] complex was quantitatively recovered in dichloroethane from 3.5 mol L hydrochloric acid medium. The maximum absorbance at λmax 415 nm was reached, and the sample was stable for 72 h. The method showed excellent analytical response, with a limit of detection of 0.32 µg/mL, a wide working range of up to 10.25 µg/mL, and reasonable accuracy (RSD &lt; 2%, n = 5). The molar absorptivity and Sandell sensitivity of the ternary complex are 0.3535×104 L/mol × cm and 0.0147 µg/cm, respectively, whereas 2.496 is the enrichment factor. Using the log‒log plot method, the [Cr(VI)-CBTCH-iodide] complex composition was verified to be 1:2:2. There are no noticeable consequences of possibly interacting ions. Chromium(VI) was successfully extracted and determined simultaneously from alloy samples, contaminated water, and synthetic mixtures via this technology. The applied method has numerous advantages, including simplicity, low cost, ease of operation, rapid detection, low ligand consumption, and high sensitivity. The sensitivity of the analytical method was proven by selecting appropriate experimental conditions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сплав</kwd><kwd>2-CBTCH</kwd><kwd>Cr(VI)</kwd><kwd>экстракционная спектрофотометрия</kwd><kwd>загрязненная вода</kwd><kwd>синтетические смеси</kwd></kwd-group><kwd-group xml:lang="en"><kwd>alloy</kwd><kwd>2-CBTCH</kwd><kwd>chromium(VI)</kwd><kwd>extractive spectrophotometry</kwd><kwd>polluted water</kwd><kwd>synthetic mixtures</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">T. L. DesMeris, M. Costa, Curr. Opinion Toxic., 14, 1–7 (2019).</mixed-citation><mixed-citation xml:lang="en">T. L. DesMeris, M. Costa, Curr. Opinion Toxic., 14, 1–7 (2019).</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">H. Oliveira, J. 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