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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">vedomostiregmed</journal-id><journal-title-group><journal-title xml:lang="ru">Регуляторные исследования и экспертиза лекарственных средств</journal-title><trans-title-group xml:lang="en"><trans-title>Regulatory Research and Medicine Evaluation</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">3034-3062</issn><issn pub-type="epub">3034-3453</issn><publisher><publisher-name>Federal State Budgetary Institution ‘Scientific Centre for Expert Evaluation of Medicinal Products’ of the Ministry of Health of the Russian Federation (FSBI ‘SCEEMP’)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30895/1991-2919-2023-13-3-403-410</article-id><article-id custom-type="elpub" pub-id-type="custom">vedomostiregmed-559</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>ИНСТРУМЕНТАЛЬНЫЕ МЕТОДЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>INSTRUMENTAL METHODS</subject></subj-group></article-categories><title-group><article-title>Модификация методики определения цинка в инсулинах методом атомно-абсорбционной спектрометрии</article-title><trans-title-group xml:lang="en"><trans-title>Modification of the Method for the Determination of Zinc Content in Insulins by Atomic Absorption Spectrometry</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7488-7204</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ерина</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Erina</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ерина Алина Андреевна </p><p>Петровский б-р, д. 8, стр. 2, Москва, 127051</p></bio><bio xml:lang="en"><p>Alina A. Erina</p><p>8/2 Petrovsky Blvd, Moscow 127051</p></bio><email xlink:type="simple">erina@expmed.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9440-0950</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Щукин</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Shchukin</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Щукин Виктор Михайлович</p><p>Петровский б-р, д. 8, стр. 2, Москва, 127051</p></bio><bio xml:lang="en"><p>Victor M. Shchukin</p><p>8/2 Petrovsky Blvd, Moscow 127051</p></bio><email xlink:type="simple">Schukin@expmed.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4813-4740</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хорольская</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Khorolskaya</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хорольская Елена Александровна</p><p>Петровский б-р, д. 8, стр. 2, Москва, 127051</p></bio><bio xml:lang="en"><p>Elena A. Khorolskaya</p><p>8/2 Petrovsky Blvd, Moscow 127051</p></bio><email xlink:type="simple">blinkovaea@expmed.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9133-0835</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кузьмина</surname><given-names>Н. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuz'mina</surname><given-names>N. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кузьмина Наталия Евгеньевна, д-р хим. наук </p><p>Петровский б-р, д. 8, стр. 2, Москва, 127051</p></bio><bio xml:lang="en"><p>Natalia E. Kuz'mina, Dr. Sci. (Chem.) </p><p>8/2 Petrovsky Blvd, Moscow 127051</p></bio><email xlink:type="simple">KuzminaN@expmed.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение &#13;
«Научный центр экспертизы средств медицинского применения» &#13;
Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Scientific Centre for Expert Evaluation of Medicinal Products</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>27</day><month>09</month><year>2023</year></pub-date><volume>13</volume><issue>3</issue><fpage>403</fpage><lpage>410</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ерина А.А., Щукин В.М., Хорольская Е.А., Кузьмина Н.Е., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Ерина А.А., Щукин В.М., Хорольская Е.А., Кузьмина Н.Е.</copyright-holder><copyright-holder xml:lang="en">Erina A.A., Shchukin V.M., Khorolskaya E.A., Kuz'mina N.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://www.vedomostincesmp.ru/jour/article/view/559">https://www.vedomostincesmp.ru/jour/article/view/559</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. Хлороводородная кислота, используемая на стадии пробоподготовки при определении содержания цинка в субстанциях и препаратах инсулина методом атомно-абсорбционной спектрометрии, является прекурсором наркотических веществ и психотропных препаратов. Исключение прекурсоров из лабораторной практики заметно снижает трудозатраты при проведении анализа.</p></sec><sec><title>Цель</title><p>Цель. Модификация фармакопейной методики определения цинка в инсулинах, направленная на исключение прекурсоров наркотических веществ, и оценка применимости модифицированной методики для анализа препаратов инсулина.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Фармацевтические субстанции и препараты инсулина различных лекарственных форм и дозировок. Определение содержания цинка проводили на атомно-абсорбционном спектрометре Agilent 240FS при характеристической длине волны 213,86 нм.</p></sec><sec><title>Результаты</title><p>Результаты. Подобраны условия проведения элементного анализа (концентрация азотной кислоты, ширина щели монохроматора, время стабилизации пламени), обеспечивающие соответствие фармакопейным требованиям к определению цинка в инсулинах (RSD≤1,4% для стандартного раствора цинка с концентрацией 0,8 мг/дм3, коэффициент корреляции калибровочного графика не менее 0,99). Проведено сравнение результатов измерения содержания цинка в исследуемых образцах при использовании в качестве растворителя хлороводородной или азотной кислоты. Сравнение модифицированной методики с фармакопейной не выявило существенного расхождения в результатах определения цинка при замене хлороводородной кислоты на азотную.</p></sec><sec><title>Выводы</title><p>Выводы. Модифицированная методика позволяет проводить анализ содержания цинка в различных лекарственных формах инсулина без использования прекурсоров наркотических веществ.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Scientific relevance</title><p>Scientific relevance. Zinc quantification in insulin active substances and preparations by atomic absorption spectrometry requires a sample preparation procedure using hydrochloric acid, a narcotic and psychotropic precursor. The exclusion of precursors from laboratory practice significantly reduces labour costs during analysis.</p></sec><sec><title>Aim</title><p>Aim. This study aimed to modify the pharmacopoeial method for quantifying zinc in insulins with a view to eliminating drug precursors and to evaluate the applicability of the modified method across different insulin preparations.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The study considered insulin active substances and preparations of various types, dosage forms, and strengths. Zinc content determination involved using an Agilent 240FS atomic absorption spectrometer at a characteristic wavelength of 213.86 nm.</p></sec><sec><title>Results</title><p>Results. The authors selected the conditions for elemental analysis (nitric acid concentration, monochromator slit width, and flame stabilisation time) corresponding to the pharmacopoeial requirements for quantifying zinc in insulins (RSD ≤1.4%, standard zinc solution with a concentration of 0.8 mg/dm3, and calibration curve correlation coefficient ≥0.99). The study compared zinc content measurements in the studied insulin samples with hydrochloric acid or nitric acid as a solvent; it did not reveal any significant differences between the results obtained by the pharmacopoeial method and the modified method.</p></sec><sec><title>Conclusions</title><p>Conclusions. The modified method enables analysts to quantify zinc in insulin preparations in various dosage forms without drug precursors.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>цинк</kwd><kwd>инсулин</kwd><kwd>атомно-абсорбционная спектрометрия</kwd><kwd>азотная кислота</kwd><kwd>хлороводородная кислота</kwd><kwd>фармакопейная методика</kwd></kwd-group><kwd-group xml:lang="en"><kwd>zinc</kwd><kwd>insulin</kwd><kwd>atomic absorption spectrometry</kwd><kwd>nitric acid</kwd><kwd>hydrochloric acid</kwd><kwd>method modification</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания ФГБУ «НЦЭСМП» Минздрава России № 056-00052-23-00 на проведение прикладных научных исследований (номер государственного учета НИР 121021800098-4).</funding-statement><funding-statement xml:lang="en">The study reported in this publication was carried out as part of publicly funded research project No. 056-00052-23-00 and was supported by the Scientific Centre for Expert Evaluation of Medicinal Products (R&amp;D public accounting No.121021800098-4).</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">Bolli GB, Cheng AYY, Owens DR. 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