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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-119</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>***</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>***</subject></subj-group></article-categories><title-group><article-title>БЫСТРЫЙ И УДОБНЫЙ СПОСОБ ОПРЕДЕЛЕНИЯ МЕТФОРМИНА ГИДРОХЛОРИДА В ТАБЛЕТКАХ С ПОМОЩЬЮ ИК СПЕКТРОСКОПИИ</article-title><trans-title-group xml:lang="en"><trans-title>FAST AND CONVENIENT NIR SPECTROSCOPY PROCEDURE FOR DETERMINATION OF METFORMIN HYDROCHLORIDE IN TABLETS</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>Pyzowski</surname><given-names>J. .</given-names></name><name name-style="western" xml:lang="en"><surname>Pyzowski</surname><given-names>J. .</given-names></name></name-alternatives><email xlink:type="simple">jaroslaw.pyzowski@umed.lodz.pl</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>Lenartowicz</surname><given-names>M. .</given-names></name><name name-style="western" xml:lang="en"><surname>Lenartowicz</surname><given-names>M. .</given-names></name></name-alternatives><email xlink:type="simple">noemail@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>Sobańska</surname><given-names>A. W.</given-names></name><name name-style="western" xml:lang="en"><surname>Sobańska</surname><given-names>A. W.</given-names></name></name-alternatives><email xlink:type="simple">noemail@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>Brzezińska</surname><given-names>E. .</given-names></name><name name-style="western" xml:lang="en"><surname>Brzezińska</surname><given-names>E. .</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Медицинский университет Лодзи</institution></aff><aff xml:lang="en"><institution>Medical University of Lodz</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>10</day><month>03</month><year>2020</year></pub-date><volume>84</volume><issue>4</issue><elocation-id>671(1)-671(6)</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Pyzowski J..., Lenartowicz M..., Sobańska A.W., Brzezińska E..., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Pyzowski J..., Lenartowicz M..., Sobańska A.W., Brzezińska E...</copyright-holder><copyright-holder xml:lang="en">Pyzowski J..., Lenartowicz M..., Sobańska A.W., Brzezińska E...</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/119">https://zhps.ejournal.by/jour/article/view/119</self-uri><abstract><p>Предложена методика быстрого и удобного определения метформина гидрохлорида в таблетках с помощью ИК спектроскопии отражения. Данная методика основана на применении калибровочных кривых, полученных с использованием ряда стандартных образцов, содержащих различные концентрации гидрохлорида метформина, смешанного с поливинилпирролидоном (ПВП). Для построения калибровочной кривой спектры стандартных образцов, ПВП, метформина гидрохлорида и порошкообразных таблеток обрабатывались фильтром коррекции мультипликативного рассеяния, а также методом производной спектроскопии. Результаты подтверждены методом тонкослойной хроматографии с последующей УФ-денситометрией.</p></abstract><trans-abstract xml:lang="en"><p>A rapid and convenient near infrared (NIR) reflectance spectroscopic procedure for the determination of metformin hydrochloride in tablets is presented. Determination was based on calibration curves that were obtained using a range of standards containing different concentrations of metformin hydrochloride blended with polyvinylpyrrolidone. The raw spectra of the standards, neat PVP, metformin hydrochloride, and powdered tablets were processed using a Multiplicative Scatter Correction filter as well as by the derivative spectroscopy method to give a basis for the calibration curve construction. The results were validated by thin-layer chromatography followed by UV-densitometry. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>ИК-спектроскопия</kwd><kwd>метформин</kwd><kwd>определение</kwd><kwd>таблетки</kwd><kwd>NIR spectroscopy</kwd><kwd>metformin</kwd><kwd>determination</kwd><kwd>tablets</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">C. J. Bailey, C. Day, Pract. Diabetes, 21, 115-117 (2004).</mixed-citation><mixed-citation xml:lang="en">C. J. Bailey, C. Day, Pract. 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