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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-973</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>Разработка двух высокопроизводительных спектрофотометрических тестов для определения фторхинолоновых антибиотиков в фармацевтических препаратах (англ.)</article-title><trans-title-group xml:lang="en"><trans-title>Development of Two Innovative 96-Microwell-Based Spectrophotometric Assays with High Throughput for Determination of Fluoroquinolone Antibiotics in their Pharmaceutical Formulations (In Engl.)</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>Khalil</surname><given-names>N. Y.</given-names></name><name name-style="western" xml:lang="en"><surname>Khalil</surname><given-names>N. Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Эр-Рияд</p></bio><bio xml:lang="en"><p>P.O. Box 2457, Riyadh</p></bio><email xlink:type="simple">nkhalil@ksu.edu.sa</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>Al Qhatani</surname><given-names>M. N.</given-names></name><name name-style="western" xml:lang="en"><surname>Al Qhatani</surname><given-names>M. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Эр-Рияд</p></bio><bio xml:lang="en"><p>P.O. Box 2457, Riyadh</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>Al Qubaisi</surname><given-names>K. A.</given-names></name><name name-style="western" xml:lang="en"><surname>Al Qubaisi</surname><given-names>K. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Эр-Рияд</p></bio><bio xml:lang="en"><p>P.O. Box 2457, Riyadh</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>Sayed</surname><given-names>A. Y.</given-names></name><name name-style="western" xml:lang="en"><surname>Sayed</surname><given-names>A. Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Эр-Рияд</p></bio><bio xml:lang="en"><p>P.O. Box 2457, Riyadh</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>Darwish</surname><given-names>I. A.</given-names></name><name name-style="western" xml:lang="en"><surname>Darwish</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Эр-Рияд</p></bio><bio xml:lang="en"><p>P.O. Box 2457, Riyadh</p></bio><email xlink:type="simple">idarwish@ksu.edu.sa</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Фармацевтический колледж Университета Короля Сауда</institution></aff><aff xml:lang="en"><institution>Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>03</day><month>02</month><year>2022</year></pub-date><volume>89</volume><issue>1</issue><fpage>75</fpage><lpage>83</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Khalil N.Y., Al Qhatani M.N., Al Qubaisi K.A., Sayed A.Y., Darwish I.A., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Khalil N.Y., Al Qhatani M.N., Al Qubaisi K.A., Sayed A.Y., Darwish I.A.</copyright-holder><copyright-holder xml:lang="en">Khalil N.Y., Al Qhatani M.N., Al Qubaisi K.A., Sayed A.Y., Darwish I.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://zhps.ejournal.by/jour/article/view/973">https://zhps.ejournal.by/jour/article/view/973</self-uri><abstract><p>Разработаны два инновационных 96-микролунных спектрофотометрических теста с высокой производительностью для контроля качества семи фторхинолоновых антибиотиков (FQA) – левофлоксацина (LEV), норфлоксацина (NOR), ципрофлоксацина (CIP), гемифлоксацина (GEM), данофлоксацина (DAN), энрофлоксацина (ENR) и марбофлоксацина (MAR). Тест I разработан для LEV, NOR, CIP и GEM посредством образования красных комплексов металлов с FeCl3. Тест II разработан для LEV, DAN, ENR и MAR посредством образования красных комплексов с переносом заряда с 2,3-дихлор-5,6-дициано-1,4-бензохиноном (DDQ). Реакции FQA с реагентами FeCl3 и DDQ проводили в прозрачных 96-луночных планшетах, а поглощение окрашенных комплексов измеряли при 460 нм с использованием считывающего устройства для микропланшетов. Для обоих тестов установлены наилучшие условия реакции, при которых соблюдается закон Бера в диапазоне 10–100 мкг/лунку с коэффициентами корреляции 0.9943–0.9982. Пределы обнаружения находились в диапазоне 4.5–7.5 мкг/лунку, пределы количественного определения – в диапазоне 14.9–25.0 мкг/лунку. Оба теста показали высокую точность с относительными стандартными отклонениями (RSD) ≤ 3.4%. Точность подтверждена значениями восстановления в диапазоне 98.1–102.6% (±0.9–2.7%). Предлагаемые методы определения семи FQA в таблетках показали хорошую точность и воспроизводимость. Методы просты, экономичны и позволяют проводить высокопроизводительный анализ, поэтому они удобны для регулярного определения FQA в фармацевтических препаратах. Дополнительным преимуществом предлагаемых тестов является то, что все FQA могут быть определены в одной системе без изменения длины волны обнаружения.</p></abstract><trans-abstract xml:lang="en"><p>Fluoroquinolone antibiotics (FQAs) have broad-spectrum antibacterial activity, high potency, variable indications, and excellent pharmacokinetic profiles. Many spectrophotometric assays have been described for the determination of FQAs in their pharmaceutical formulations; however, most of these assays have limited throughput for application in quality control laboratories. This study describes the development and validation of two innovative 96-microwell-based spectrophotometric assays with high throughput for the quality control of seven FQAs. These FQAs were levofloxacin (LEV), norfloxacin (NOR), ciprofloxacin (CIP), gemifloxacin (GEM), danofloxacin (DAN), enrofloxacin (ENR), and marbofloxacin (MAR). The first assay (assay I) was developed for LEV, NOR, CIP, and GEM via the formation of red metal complexes with FeCl3. The second assay (assay II) was developed for LEV, DAN, ENR, and MAR via the formation of red charge transfer complexes with 2,3-dich1oro-5,6-dicyano-1,4-benzoquinone (DDQ). The reactions of FQAs with both FeCl3 and DDQ reagents were performed in transparent 96-microwell plates, and the absorbance of the colored complexes was measured at 460 nm using an absorbance microplate reader. The best reaction conditions were established for both assays, under which Beer’s law was obeyed in the range of 10–100 μg/well with good correlation coefficients (0.9943–0.9982). The limits of detection were in the range of 4.5–7.5 μg/well, and the limits of quantification were in the range of 14.9–25.0 μg/well. Both assays showed high precision, as the values of the relative standard deviations (RSD) did not exceed 3.4%. The accuracy of both assays was proven by recovery studies, as the recovery values were in the range of 98.1–102.6% (±0.9–2.7%). The assays were applied for the determination of all seven FQAs in their tablets with good accuracy and precision. The assays are simple, economical, and have the capacity for high-throughput testing; therefore, they are convenient and beneficial for the regular determination of FQAs in pharmaceutical formulations. An additional advantage of these assays is that all FQAs can be determined on a single system without modifications in the detection wavelength.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>фторхинолоновые антибиотики</kwd><kwd>комплексы металлов</kwd><kwd>комплексы с переносом заряда</kwd><kwd>спектрофотометрия</kwd><kwd>96-луночные планшеты</kwd><kwd>высокопроизводительный анализ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>fluoroquinolone antibiotics</kwd><kwd>metal complexes</kwd><kwd>charge transfer complexes</kwd><kwd>spectrophotometry</kwd><kwd>96-microwell-based assays</kwd><kwd>high-throughput analysis</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">A. Korolkovas, Essentials of Medicinal Chemistry, 2nd ed., Wiley Interscience, Philadelphia (1998).</mixed-citation><mixed-citation xml:lang="en">A. 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