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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">pharmjournal</journal-id><journal-title-group><journal-title xml:lang="ru">Разработка и регистрация лекарственных средств</journal-title><trans-title-group xml:lang="en"><trans-title>Drug development &amp; registration</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2305-2066</issn><issn pub-type="epub">2658-5049</issn><publisher><publisher-name>LLC «CPHA»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.33380/2305-2066-2025-14-4-2026</article-id><article-id custom-type="elpub" pub-id-type="custom">pharmjournal-2197</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>МЕТОДЫ АНАЛИЗА ЛЕКАРСТВЕННЫХ СРЕДСТВ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ANALYTICAL METHODS</subject></subj-group></article-categories><title-group><article-title>Разработка и валидация методики количественного определения суммы флавоноидов в траве вербейника обыкновенного (Lysimachia vulgaris L.)</article-title><trans-title-group xml:lang="en"><trans-title>Development and validation of a method for quantitative determination of the flavonoid content in the herb of yellow loosestrife (Lysimachia vulgaris L.)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3551-5632</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Крипак</surname><given-names>Е. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Kripak</surname><given-names>E. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>197022, г. Санкт-Петербург, ул. Профессора Попова, д. 14, литера А</p></bio><bio xml:lang="en"><p>14A, Prof. Popova str., Saint-Petersburg, 197022</p></bio><email xlink:type="simple">katunhik@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9763-096X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жохова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhokhova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>197022, г. Санкт-Петербург, ул. Профессора Попова, д. 14, литера А</p></bio><bio xml:lang="en"><p>14A, Prof. Popova str., Saint-Petersburg, 197022</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное образовательное учреждение высшего образования «Санкт-Петербургский государственный химико-фармацевтический университет» Министерства здравоохранения Российской Федерации (ФГБОУ ВО СПХФУ Минздрава России)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint-Petersburg State Chemical and Pharmaceutical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>03</day><month>12</month><year>2025</year></pub-date><volume>14</volume><issue>4</issue><fpage>152</fpage><lpage>163</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Крипак Е.М., Жохова Е.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Крипак Е.М., Жохова Е.В.</copyright-holder><copyright-holder xml:lang="en">Kripak E.M., Zhokhova E.V.</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.pharmjournal.ru/jour/article/view/2197">https://www.pharmjournal.ru/jour/article/view/2197</self-uri><abstract><sec><title>Введение</title><p>Введение. Исследование качественного и количественного состава растений и выявление перспективных лекарственных видов – одна из важнейших задач современной фармакогнозии. Вербейник обыкновенный (Lysimachia vulgaris L.) сем. первоцветных (Primulaceae Batsch ex Borkh.) – многолетнее травянистое растение, для надземной части которого основной группой действующих веществ являются фенольные соединения. L. vulgaris распространен в России практически повсеместно, известно о его применении в традиционной медицине, а также о видах биологической активности, рассмотренных в экспериментах in vitro и in vivo, но поиск научной литературы в отечественном сегменте не выявил достаточной информации о количественном содержании биологически активных веществ (далее – БАВ).</p></sec><sec><title>Цель</title><p>Цель. Разработка и валидация методики оценки количественного содержания суммы флавоноидов в траве вербейника обыкновенного (L. vulgaris) в пересчете на рутин методом спектрофотометрии.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В качестве объекта использовали спиртовые извлечения из надземной части L. vulgaris, заготовленного в период цветения в Ленинградской области. Количественное определение проводили методом спектрофотометрии. Предложенную методику валидировали в соответствии с ОФС.1.1.0012 «Валидация аналитических методик» Государственной фармакопеи РФ XV издания по показателям «специфичность», «линейность», «аналитическая область», «повторяемость», «прецизионность» и «правильность».</p></sec><sec><title>Результаты и обсуждение</title><p>Результаты и обсуждение. Для методики количественного определения флавоноидов в траве L. vulgaris методом спектрофотометрии в качестве стандартного образца был предложен рутин. Было установлено, что оптимальное извлечение флавоноидов из травы L. vulgaris достигается путем использования однократной экстракции спиртом этиловым 70%-м в течение 30 мин при соотношении «сырье : экстрагент» 1 : 100 и измельченности сырья 2–1 мм. В качестве комплексообразователя был предложен раствор алюминия хлорида 1%-й спиртовой, были подобраны условия комплексообразования (аликвота раствора алюминия хлорида 1%-го – 2 мл, время комплексообразования – 30 мин). Методика отвечает требованиям валидационных характеристик. По разработанной методике было установлено, что сумма флавоноидов в траве L. vulgaris, заготовленного в Ленинградской области, составляет 2,97 ± 0,05 % в пересчете на рутин.</p></sec><sec><title>Заключение</title><p>Заключение. Разработана и валидирована методика количественного определения суммы флавоноидов в траве вербейника обыкновенного (L. vulgaris) методом спектрофотометрии в пересчете на рутин.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. The study of the qualitative and quantitative composition of plants and the identification of promising medicinal species is one of the most important tasks of modern pharmacognosy. Yellow loosestrife (Lysimachia vulgaris L.) of the Primulaceae family is a perennial herbaceous plant. The main group of active substances in the herb of L. vulgaris are phenolic compounds. L. vulgaris is widely distributed in Russia, is known in traditional medicine, its biological activities have been examined in vitro and in vivo experiments. A search of scientific literature in the Russian segment did not reveal sufficient information on the quantitative content of biologically active substances.</p></sec><sec><title>Aim</title><p>Aim. Development and validation of an analytical procedure for assessing the quantitative content of flavonoids in the herb of yellow loosestrife (L. vulgaris) in terms of rutin using spectrophotometry.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The object of the study was alcohol extracts from the aerial part of L. vulgaris, harvested during the flowering period in the Leningrad region. Quantitative determination was carried out by spectrophotometry. The proposed analytical procedure was validated in accordance with the requirements of the State Pharmacopoeia XV in terms of specificity, linearity, range, repeatability (intra-assay precision), precision and accuracy (trueness).</p></sec><sec><title>Results and discussion</title><p>Results and discussion. For the proposed analytical procedure, rutin was proposed as a standard sample. It was found that the maximum extraction of flavonoids from the herb of L. vulgaris is achieved by using a single extraction with 70 % ethyl alcohol for 30 min at a raw material : extractant ratio of 1 : 100 and a raw material grinding of 2–1 mm. A 1 % alcohol solution of aluminum chloride was proposed as a complexing agent, and the complexation conditions were selected (aliquot of aluminum chloride 1 % solution 2 ml, complexation time 30 min). The analytical procedure meets the requirements of the validation characteristics. According to the developed method, it was found that the amount of flavonoids in the herb of L. vulgaris, harvested in the Leningrad region, is 2,97 ± 0,05 % expressed in rutin.</p></sec><sec><title>Conclusion</title><p>Conclusion. A method for the quantitative determination of the flavonoid content in the herb of yellow loosestrife (L. vulgaris) by spectrophotometry expressed in rutin has been developed and validated.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>флавоноиды</kwd><kwd>дифференциальная спектрофотометрия</kwd><kwd>вербейник обыкновенный</kwd><kwd>Lysimachia vulgaris L.</kwd><kwd>валидация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>flavonoids</kwd><kwd>differential spectrophotometry</kwd><kwd>yellow loosestrife</kwd><kwd>Lysimachia vulgaris L.</kwd><kwd>validation</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">Podolak I., Strzałka M. Qualitative and quantitative LC profile of embelin and rapanone in selected Lysimachia species. Chromatographia. 2008;67(5–6):471–475. DOI: 10.1365/s10337-007-0511-4.</mixed-citation><mixed-citation xml:lang="en">Podolak I., Strzałka M. 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