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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-1300</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>Одновременный биоанализ напроксена и дифенгидрамина в плазме крови человека с использованием метода жидкостной хроматографии-тандемной масс-спектрометрии</article-title><trans-title-group xml:lang="en"><trans-title>Simultaneous Bioanalysis of Naproxen and Diphenhydramine in Human Plasma Using Liquid Chromatography-Tandem Mass Spectrometry</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>Bezawada</surname><given-names>V.</given-names></name><name name-style="western" xml:lang="en"><surname>Bezawada</surname><given-names>V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Bezawada Viritha.</p><p>Элуру; Вишакхапатнам</p></bio><bio xml:lang="en"><p>Viritha Bezawada.</p><p>Eluru; Visakhapatnam</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>Mogili</surname><given-names>P.</given-names></name><name name-style="western" xml:lang="en"><surname>Mogili</surname><given-names>P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Mogili Padma.</p><p>Вишакхапатнам</p></bio><bio xml:lang="en"><p>Padma Mogili.</p><p>Visakhapatnam</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>Dodda</surname><given-names>S.</given-names></name><name name-style="western" xml:lang="en"><surname>Dodda</surname><given-names>S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Dodda Sireesha.</p><p>Хайдарабад</p></bio><bio xml:lang="en"><p>Sireesha Dodda.</p><p>Hyderabad</p></bio><email xlink:type="simple">rishikavempati@gmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Gajula</surname><given-names>R.</given-names></name><name name-style="western" xml:lang="en"><surname>Gajula</surname><given-names>R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Gajula Ramakrishna.</p><p>Хайдарабад</p></bio><bio xml:lang="en"><p>Ramakrishna Gajula.</p><p>Hyderabad</p></bio><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Колледж сэра К.Р. Редди; Инженерный колледж Университета Андхра</institution></aff><aff xml:lang="en"><institution>Sir CR Reddy College; Department of Engineering Chemistry, College of Engineering, Andhra University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Инженерный колледж Университета Андхра</institution></aff><aff xml:lang="en"><institution>Department of Engineering Chemistry, College of Engineering, Andhra University</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Фармацевтический факультет Университета Анураг</institution></aff><aff xml:lang="en"><institution>School of Pharmacy, Anurag University (Formerly Anurag group of Institutions)</institution></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>VLS Laboratories Ltd.</institution></aff><aff xml:lang="en"><institution>VLS Laboratories Ltd.</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>31</day><month>05</month><year>2023</year></pub-date><volume>90</volume><issue>3</issue><fpage>523</fpage><lpage>9</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Bezawada V., Mogili P., Dodda S., Gajula R., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Bezawada V., Mogili P., Dodda S., Gajula R.</copyright-holder><copyright-holder xml:lang="en">Bezawada V., Mogili P., Dodda S., Gajula R.</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/1300">https://zhps.ejournal.by/jour/article/view/1300</self-uri><abstract><p>Разработан простой и чувствительный биоаналитический метод для одновременной оценки напроксена натрия (NPX) и гидрохлорида дифенгидрамина (DPH) в плазме человека с использованием жидкостной хроматографии-тандемной масс-спектрометрии (LC-MS/MS). В качестве внутренних стандартов использованы меченные изотопами аналоги — напроксен 13CD3 и дифенгидрамин D5 соляная кислота. Аналиты экстрагировали из 50 мкл плазмы крови человека методом белковой преципитации. Разделение аналитов проведено на колонке Zodiac C18 (50x4.6 мм, 3 мкм) с использованием смеси градуированного ацетонитрила и 5 мМ ацетатно-аммонийного буфера в 0.025 %-ном растворе муравьиной кислоты (60:40, об./об.) при скорости потока 1.0 мл/мин. Метод показал линейность в диапазоне концентраций 400—120000 нг/мл для NPX и 0.80—240 нг/мл для DPH при r2 &gt; 0.99. Результаты проверки метода на валидацию в соответствии с рекомендациями FDA (США) в допустимых пределах. Предлагаемый метод успешно применен для фармакокинетического исследования обоих препаратов одновременно после перорального приема испытуемыми двух капсул, каждая из которых содержит 220 мг NPX и 25 мг DPH. Для подтверждения воспроизводимости метода проведен повторный анализ проб.</p></abstract><trans-abstract xml:lang="en"><p>A simple, sensitive, and rapid bioanalytical method was developed for the first time for simultaneous es-timation of naproxen sodium (NPX) and diphenhydramine hydrochloride (DPH) in human plasma using liquid chromatography-tandem mass spectrometry (LC-MS/MS). The isotope-labelled analogs, naproxen 13CD3 and diphenhydramine D5 hydrochloric acid, were used as the internal standards. The analytes were extracted from 50 µL of human plasma employing a simple protein precipitation technique. The separation of analytes was carried out on a Zodiac C18 column (50x4.6 mm, 3 µm) using a mixture of HPLC grade acetonitrile and 5 mM ammonium acetate buffer in 0.025% formic acid (60:40, v/v) at a flow rate of 1.0 mL/min. The method showed linearity within the concentration ranges 400 to 120,000 ng/mL for NPX and from 0.80 to 240 ng/mL for DPH with r2 &gt; 0.99. The method was validated as per the US FDA guidelines and the results were found to be within the acceptance limits. The method was successfully applied for the pharmacokinetic study of both drugs simultaneously after an oral dose of two caplets, each containing NPX 220 mg and DPH 25 mg under fed conditions in human volunteers. Incurred sample reanalysis was also performed to authenticate the reproducibility of the method.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>напроксен</kwd><kwd>дифенгидрамин</kwd><kwd>метод жидкостной хроматографии-тандемной масс-спектрометрии</kwd><kwd>синхронный биоанализ</kwd><kwd>фармакокинетическое исследование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>naproxen</kwd><kwd>diphenhydramine</kwd><kwd>liquid chromatography-tandem mass spectrometry</kwd><kwd>simultaneous bioanalysis</kwd><kwd>pharmacokinetic study</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">P. A. Todd, S. P. Clissold, Drugs, 40, 91-137 (1990).</mixed-citation><mixed-citation xml:lang="en">P. A. Todd, S. P. Clissold, Drugs, 40, 91-137 (1990).</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">E. Segre, J. Rep. 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