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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">zldm</journal-id><journal-title-group><journal-title xml:lang="ru">Заводская лаборатория. Диагностика материалов</journal-title><trans-title-group xml:lang="en"><trans-title>Industrial laboratory. Diagnostics of materials</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1028-6861</issn><issn pub-type="epub">2588-0187</issn><publisher><publisher-name>ООО «Издательство «ТЕСТ-ЗЛ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26896/1028-6861-2020-86-9-14-23</article-id><article-id custom-type="elpub" pub-id-type="custom">zldm-1274</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>АНАЛИЗ ВЕЩЕСТВА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SUBSTANCES ANALYSIS</subject></subj-group></article-categories><title-group><article-title>Определение 1,1-диметилгидразина в воде методом высокоэффективной жидкостной хроматографии со спектрофотометрическим детектированием с применением мицеллярного катализа для получения производных</article-title><trans-title-group xml:lang="en"><trans-title>Determination of 1,1-dimethylhydrazine (UDMH) in water by HPLC-UV using micellar catalysis for preparation of the derivatives</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>Тимченко</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Timchenko</surname><given-names>Yu. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юрий Валерьевич Тимченко</p><p>119991, Москва, ГСП-1, Ленинские горы, д. 1, стр. 3</p></bio><bio xml:lang="en"><p>Yury V. Timchenko</p><p>1/3 Leninskiye Gory, Moscow, 119991</p></bio><email xlink:type="simple">yury_tim@mail.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>Беликова</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Belikova</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ирина Владимировна Беликова</p><p>119991, Москва, ГСП-1, Ленинские горы, д. 1, стр. 3</p></bio><bio xml:lang="en"><p>Irina V. Belikova</p><p>1/3 Leninskiye Gory, Moscow, 119991</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>Смоленков</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Smolenkov</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Дмитриевич Смоленков</p></bio><bio xml:lang="en"><p>Alexander D. Smolenkov</p><p>1/3 Leninskiye Gory, Moscow, 119991</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>Пирогов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pirogov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андрей Владимирович Пирогов</p><p>119991, Москва, ГСП-1, Ленинские горы, д. 1, стр. 3</p></bio><bio xml:lang="en"><p>Andrey V. Pirogov</p><p>1/3 Leninskiye Gory, Moscow, 119991</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>Шпигун</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Shpigun</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Олег Алексеевич Шпигун</p><p>119991, Москва, ГСП-1, Ленинские горы, д. 1, стр. 3</p></bio><bio xml:lang="en"><p>Oleg A. Shpigun</p><p>1/3 Leninskiye Gory, Moscow, 119991</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский государственный университет имени М.В. Ломоносова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>M.V. Lomonosov Moscow State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>13</day><month>09</month><year>2020</year></pub-date><volume>86</volume><issue>9</issue><fpage>14</fpage><lpage>23</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Тимченко Ю.В., Беликова И.В., Смоленков А.Д., Пирогов А.В., Шпигун О.А., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Тимченко Ю.В., Беликова И.В., Смоленков А.Д., Пирогов А.В., Шпигун О.А.</copyright-holder><copyright-holder xml:lang="en">Timchenko Y.V., Belikova I.V., Smolenkov A.D., Pirogov A.V., Shpigun O.A.</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://www.zldm.ru/jour/article/view/1274">https://www.zldm.ru/jour/article/view/1274</self-uri><abstract><p>Исследована возможность улучшения определения 1,1-диметилгидразина (несимметричного диметилгидразина, НДМГ) методом ВЭЖХ-СФ с предварительной дериватизацией 2-нитробензальдегидом (2НБА) и 4-нитробензальдегидом (4НБА) в водной среде за счет применения мицеллярного катализа реакции получения производных. Были оптимизированы условия дериватизации НДМГ, такие как рН, концентрации реагента и поверхностно-активного вещества (ПАВ), температура и время проведения реакции. Установлено, что реакции дериватизации протекают полностью при pH 9 в присутствии 87 мМ раствора додецилсульфата натрия (ДДСН) и избытка реагентов при комнатной температуре за 45 и 30 мин для 2НБА и 4НБА соответственно. Методом ионной хроматографии по отсутствию НДМГ в реакционной смеси доказано, что в этих условиях достигается количественный выход продуктов реакции. Мицеллярный катализ позволяет проводить дериватизацию в более мягких условиях и обеспечивает полноту протекания реакции в области малых концентраций НДМГ, что расширяет линейный диапазон определяемых концентраций. Для ВЭЖХ-СФ определения НДМГ использовали хроматографическую колонку ZORBAX Eclipse Plus C18 (150 × 3,0 мм, 3,5 мкм), а в качестве подвижной фазы — смесь ацетонитрила и 10 мМ аммиачного буферного раствора pH 7 (50/50, % об.) при скорости потока 0,7 мл/мин в изократическом режиме. Детектирование диметилгидразонов 2НБА и 4НБА проводили на длинах волн 308 и 394 нм соответственно. Пределы обнаружения НДМГ (S/N = 3) составили 3 и 1,5 мкг/л для 2НБА и 4НБА соответственно. Время хроматографического анализа — 15 мин. Разработанная методика анализа вод обеспечивает простое, чувствительное и воспроизводимое определение НДМГ в диапазоне концентраций 5 – 1000 мкг/л методом ВЭЖХ-СФ без дополнительного концентрирования.</p></abstract><trans-abstract xml:lang="en"><p>The possibility of improving the HPLC-UV determination of 1, 1-dimethylhydrazine (unsymmetrical dimethylhydrazine, UDMH) with preliminary derivatization with 2-nitrobenzaldehyde (2NBA) and 4-nitrobenzaldehyde (4NBA) in an aqueous medium when using micellar catalysis of the reaction to obtain the derivatives is studied. Conditions of UDMH derivatization (pH, concentrations of the reagent and surfactant (SAS), temperature and reaction time) were optimized. It is shown that complete derivatization occurs at room temperature during 45 and 30 min (for 2NBA and 4NBA, respectively) at pH 9 in the presence of 87 mM sodium dodecyl sulfate (SDS) and the excess content of the reagents. Ion chromatography was used to prove the quantitative yields under conditions of derivatization by the absence of UDMH in the reaction mixture. Micellar catalysis provides the completeness of derivatization carried out under milder conditions and in the region of low UDMH concentrations thus expanding the linear range of UDMH determination in water. ZORBAX Eclipse Plus C18 column (150 × 3.0 mm, 3.5 μm) was used for separation of the components. A mixture of acetonitrile and 10 mM ammonia buffer solution pH 7 (50/50 vol.%) at a flow rate of 0.7 ml/min in isocratic mode was used as a mobile phase. Detection of dimethylhydrazines (2NBA and 4NBA) was performed at 308 and 394 nm, respectively. The obtained detection limits of UDMH (S/N = 3) were 3 and 1.5 μg/L for 2NBA and 4NBA, respectively. Duration of chromatographic analysis was 15 min. The developed technique of water analysis provides simple, sensitive and reproducible HPLC-UV determination of UDMH in a concentration range of 5 – 1000 μg/L without additional preconcentration.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>дериватизация</kwd><kwd>1</kwd><kwd>1-диметилгидразин</kwd><kwd>мицеллярный катализ</kwd><kwd>ВЭЖХ</kwd><kwd>нитробензальдегид</kwd><kwd>анализ воды</kwd></kwd-group><kwd-group xml:lang="en"><kwd>derivatization</kwd><kwd>1</kwd><kwd>1-dimethylhydrazine</kwd><kwd>micellar catalysis</kwd><kwd>HPLC</kwd><kwd>nitrobenzaldehyde</kwd><kwd>water analysis</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено при финансовой поддержке РФФИ в рамках научного проекта № 19-33-90120</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Schmidt E. W. 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