<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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">10.30895/1991-2919-2021-11-2-185-192</article-id><article-id custom-type="elpub" pub-id-type="custom">vedomostiregmed-363</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Анализ фолиевой кислоты в поливитаминных препаратах методом обращенно-фазовой ВЭЖХ</article-title><trans-title-group xml:lang="en"><trans-title>Determination of Folic Acid in Multivitamin Preparations by Reversed Phase HPLC</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6094-8990</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алексеева</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Alekseeva</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексеева Анастасия Сергеевна, канд. фарм. наук,</p><p>Петровский б-р, д. 8, стр. 2, Москва, 127051</p></bio><bio xml:lang="en"><p>Anastasia S. Alekseeva, Cand. Sci. (Pharm.),</p><p>8/2 Petrovsky Blvd, Moscow 127051</p></bio><email xlink:type="simple">AlekseevaAS@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/0000-0002-2988-8627</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гаврилин</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gavrilin</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гаврилин Михаил Витальевич, д-р фарм. наук, профессор,</p><p>Репищева ул., д. 14, Санкт-Петербург, 197378</p></bio><bio xml:lang="en"><p>Mikhail V. Gavrilin, Dr. Sci (Pharm.). Professor,</p><p>14 Repishcheva St., St.-Petersburg 197378</p></bio><email xlink:type="simple">gavrilinmv@expmed.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3720-9687</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шемерянкина</surname><given-names>Т. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Shemeryankina</surname><given-names>T. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шемерянкина Татьяна Борисовна, канд. фарм. наук,</p><p>Петровский б-р, д. 8, стр. 2, Москва, 127051</p></bio><bio xml:lang="en"><p>Tatiana B. Shemeryankina, Cand. Sci. (Pharm.),</p><p>8/2 Petrovsky Blvd, Moscow 127051</p></bio><email xlink:type="simple">Shemeryankina@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/0000-0002-0305-5934</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смирнова</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Smirnova</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Смирнова Мария Сергеевна,</p><p>Петровский б-р, д. 8, стр. 2, Москва, 127051</p></bio><bio xml:lang="en"><p>Maria S. Smirnova,</p><p>8/2 Petrovsky Blvd, Moscow 127051</p></bio><email xlink:type="simple">smirnovams@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/0000-0002-4499-2190</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Федорова</surname><given-names>Е. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedorova</surname><given-names>E. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Федорова Елена Павловна, канд. фарм. наук,</p><p>Петровский б-р, д. 8, стр. 2, Москва, 127051</p></bio><bio xml:lang="en"><p>Elena P. Fedorova, Cand. Sci. (Pharm.),</p><p>8/2 Petrovsky Blvd, Moscow 127051</p></bio><email xlink:type="simple">fedorovaep@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/0000-0003-3788-6338</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Каргина</surname><given-names>Т. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Kargina</surname><given-names>T. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Каргина Татьяна Михайловна, канд. биол. наук,</p><p>Петровский б-р, д. 8, стр. 2, Москва, 127051</p></bio><bio xml:lang="en"><p>Tatiana M. Kargina, Cand. Sci. (Biol.),</p><p>8/2 Petrovsky Blvd, Moscow 127051</p></bio><email xlink:type="simple">kargina@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/0000-0003-3145-6783</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Новиков</surname><given-names>О. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Novikov</surname><given-names>O. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новиков Олег Олегович, д-р фарм. наук, профессор,</p><p>Миклухо-Маклая ул., 8/2, Москва, 117198  </p></bio><bio xml:lang="en"><p>Oleg O. Novikov, Dr. Sci (Pharm.). Professor,</p><p>Miklukho-Maklaya St. 6, Moscow 117198</p></bio><email xlink:type="simple">ole9222@yandex.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3183-4388</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ковалева</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kovaleva</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ковалева Светлана Анатольевна, канд. хим. наук,</p><p>Миклухо-Маклая ул., 8/2, Москва, 117198  </p></bio><bio xml:lang="en"><p>Svetlana A. Kovaleva, Cand. Sci. (Chem.),</p><p>Miklukho-Maklaya St. 6, Moscow 117198</p></bio><email xlink:type="simple">kovaleva-sa@rudn.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9222-2935</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бойко</surname><given-names>Н. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Boyko</surname><given-names>N. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бойко Николай Николаевич, канд. фарм. наук, доцент,</p><p>Миклухо-Маклая ул., 8/2, Москва, 117198 </p></bio><bio xml:lang="en"><p>Nikolay N. Boyko, Cand. Sci. (Pharm.), Associate Professor,</p><p>Miklukho-Maklaya St. 6, Moscow 117198</p></bio><email xlink:type="simple">boykoniknik@gmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение «Научный центр экспертизы средств медицинского применения» 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><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Общество с ограниченной ответственностью «Фармакор Продакшн»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>“Pharmacor Production”, Ltd.</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Федеральное государственное автономное образовательное учреждение высшего образования «Российский университет дружбы народов»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Peoples’ Friendship University of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>14</day><month>07</month><year>2021</year></pub-date><volume>11</volume><issue>3</issue><fpage>185</fpage><lpage>192</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Алексеева А.С., Гаврилин М.В., Шемерянкина Т.Б., Смирнова М.С., Федорова Е.П., Каргина Т.М., Новиков О.О., Ковалева С.А., Бойко Н.Н., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Алексеева А.С., Гаврилин М.В., Шемерянкина Т.Б., Смирнова М.С., Федорова Е.П., Каргина Т.М., Новиков О.О., Ковалева С.А., Бойко Н.Н.</copyright-holder><copyright-holder xml:lang="en">Alekseeva A.S., Gavrilin M.V., Shemeryankina T.B., Smirnova M.S., Fedorova E.P., Kargina T.M., Novikov O.O., Kovaleva S.A., Boyko N.N.</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/363">https://www.vedomostincesmp.ru/jour/article/view/363</self-uri><abstract><p>Поливитаминные препараты, содержащие фолиевую кислоту, значительно различаются по своему составу. Предлагаемые производителями методы и условия анализа фолиевой кислоты также различаются, в связи с чем необходима унификация методик анализа фолиевой кислоты для близких по составу препаратов.</p><sec><title>Цель работы</title><p>Цель работы: сравнение результатов апробации методик анализа фолиевой кислоты в поливитаминных препаратах методом обращенно-фазовой высокоэффективной жидкостной хроматографии в изократическом режиме подачи подвижной фазы.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы: хроматограф жидкостный Agilent 1260 Infinity II LC с диодно-матричным детектором, аналитическая длина волны 280 нм. Колонки хроматографические с неподвижной фазой на основе силикагеля с привитыми группами С8 и С18. Режим подачи подвижной фазы – изократический. Модельные смеси, содержащие фолиевую кислоту, цианокобаламин, железа сульфат и калия йодид.</p></sec><sec><title>Результаты</title><p>Результаты: наименьшие значения относительного стандартного отклонения площади пика фолиевой кислоты (RSD = 0,09%) и фактора асимметрии пика (As = 1,04) отмечены при анализе модельной смеси «железа сульфат+фолиевая кислота+цианокобаламин» на колонке 250×4,0 мм с силикагелем октилсилильным (С8) эндкепированным с использованием в качестве подвижной фазы смеси метанол – фосфатный буферный раствор pH 6,6 (12:88) при температуре 25 ºС. Показана возможность одновременного определения примеси птероевой кислоты в данных условиях анализа и осаждения мешающих ионов железа при использовании в качестве растворителя пробы раствора, содержащего этилендиаминтетрауксусную кислоту, с рН 9,5. </p></sec><sec><title>Выводы</title><p>Выводы: при выборе оптимальной унифицированной методики анализа фолиевой кислоты в комплексных препаратах можно рекомендовать метод обращенно-фазовой высокоэффективной жидкостной хроматографии. Для проверки пригодности хроматографической системы рекомендуется использовать раствор, содержащий фолиевую и птероевую кислоты.</p></sec></abstract><trans-abstract xml:lang="en"><p>A great variety of components in multivitamin preparations containing folic acid, and a variety of test methods and conditions of folic acid determination proposed by manufacturers, require alignment of test procedures for products with similar composition.</p><p>The aim of the study was to compare the results of experimental verification of folic acid determination procedures which use reversed phase high-performance liquid chromatography (RP HPLC) with isocratic elution mode. </p><sec><title>Materials and methods</title><p>Materials and methods: The Agilent 1260 Infinity II LC system with a diode array detector (280 nm), isocratic elution mode, C8- and C18-bonded silica gel chromatographic columns, model mixtures containing folic acid, cyanocobalamin, ferrous sulfate, and potassium iodide, were used in the study.</p></sec><sec><title>Results</title><p>Results: The lowest relative standard deviation of the folic acid peak area (RSD=0.09%), and the lowest asymmetry factor (As=1.04) for folic acid were observed for the model mixture “ferrous sulfate+folic acid+cyanocobalamin” and the following test conditions. Column: 250×4.0 mm, silica gel for chromatography, octylsilyl (C8), endcapped; mobile phase:  methanol‒phosphate buffer (12:88), pH 6.6; column temperature: 25ºС. The study demonstrated the feasibility of using these conditions for determination of pteroic acid impurity with simultaneous precipitation of interfering ferrous ions, using ethylenediaminetetraacetic acid solution, pH 9.5, as a solvent.</p></sec><sec><title>Conclusions</title><p>Conclusions: RP HPLC can be recommended as an optimal aligned test procedure for determination of folic acid in combination products. It is recommended to use a solution containing folic and pteroic acids for system suitability testing.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>фолиевая кислота</kwd><kwd>ВЭЖХ</kwd><kwd>поливитаминные препараты</kwd><kwd>фактор асимметрии</kwd><kwd>относительное стандартное отклонение</kwd><kwd>эффективность хроматографической колонки</kwd></kwd-group><kwd-group xml:lang="en"><kwd>folic acid</kwd><kwd>HPLC</kwd><kwd>multivitamin preparations</kwd><kwd>asymmetry factor</kwd><kwd>relative standard deviation</kwd><kwd>column efficiency</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания ФГБУ «НЦЭСМП» Минздрава России № 056-00005-21-00 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 a publicly funded research project No. 056-00005-21-00 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">Слепченко ГБ, Мартынюк ОА, Шелеметьева ОВ. Разработка методик определения в грудном молоке витаминов группы В. Известия Томского политехнического университета. 2008;312(3):58–61.</mixed-citation><mixed-citation xml:lang="en">Slepchenko GB, Martynyuk OA, Shelemetieva OV. Development of techniques for determining vitamins of group B in breast milk. Izvestiya Tomskogo politekhnicheskogo universiteta = Bulletin of the Tomsk Polytechnic University. 2008;312(3):58–61 (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Capelli I, Cianciolo G, Gasperoni L, Zappulo F, Tondolo F, Cappuccilli M, La Manna G. Folic acid and vitamin B12 administration in CKD, why not? Nutrients. 2019;11(2):383. https://dx.doi.org/10.3390%2Fnu11020383</mixed-citation><mixed-citation xml:lang="en">Capelli I, Cianciolo G, Gasperoni L, Zappulo F, Tondolo F, Cappuccilli M, La Manna G. Folic acid and vitamin B12 administration in CKD, why not? Nutrients. 2019;11(2):383. https://dx.doi.org/10.3390%2Fnu11020383</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Gazzali AM, Lobry M, Colombeau L, Acherar S, Azaïs H, Mordon S, et al. Stability of folic acid under several parameters. Eur J Pharm Sci. 2016;93:419–30. https://doi.org/10.1016/j.ejps.2016.08.045</mixed-citation><mixed-citation xml:lang="en">Gazzali AM, Lobry M, Colombeau L, Acherar S, Azaïs H, Mordon S, et al. Stability of folic acid under several parameters. Eur J Pharm Sci. 2016;93:419–30. https://doi.org/10.1016/j.ejps.2016.08.045</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Jaszewski R, Misra S, Tobi M, Ullah N, Naumoff JA, Kucuk O, Levi E, Axelrod BN, Patel BB, Majumdar AP. Folic acid supplementation inhibits recurrence of colorectal adenomas: a randomized chemoprevention trial. World J Gastroenterol. 2008;14(28):4492–8. https://doi.org/10.3748/wjg.14.4492</mixed-citation><mixed-citation xml:lang="en">Jaszewski R, Misra S, Tobi M, Ullah N, Naumoff JA, Kucuk O, Levi E, Axelrod BN, Patel BB, Majumdar AP. Folic acid supplementation inhibits recurrence of colorectal adenomas: a randomized chemoprevention trial. World J Gastroenterol. 2008;14(28):4492–8. https://doi.org/10.3748/wjg.14.4492</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Qin T, Du M, Du H, Shu Y, Wang M, Zhu L. Folic acid supplements and colorectal cancer risk: meta-analysis of randomized controlled trials. Sci Rep. 2015;5:12044. https://doi.org/10.1038/srep12044</mixed-citation><mixed-citation xml:lang="en">Qin T, Du M, Du H, Shu Y, Wang M, Zhu L. Folic acid supplements and colorectal cancer risk: meta-analysis of randomized controlled trials. Sci Rep. 2015;5:12044. https://doi.org/10.1038/srep12044</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Berry RJ, Li Z, Erickson JD, Li S, Moore CA, Wang H, et al. Prevention of neural-tube defects with folic acid in China. China– U.S. Collaborative Project for Neural Tube Defect Prevention. New Engl J Med. 1999;341(20):1485–90. https://doi.org/10.1056/NEJM199911113412001</mixed-citation><mixed-citation xml:lang="en">Berry RJ, Li Z, Erickson JD, Li S, Moore CA, Wang H, et al. Prevention of neural-tube defects with folic acid in China. China– U.S. Collaborative Project for Neural Tube Defect Prevention. New Engl J Med. 1999;341(20):1485–90. https://doi.org/10.1056/NEJM199911113412001</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Ledermann JA, Canevari S, Thigpen T. Targeting the folate receptor: diagnostic and therapeutic approaches to personalize cancer treatments. Ann Oncol. 2015;26(10):2034–43. https://doi.org/10.1093/annonc/mdv250</mixed-citation><mixed-citation xml:lang="en">Ledermann JA, Canevari S, Thigpen T. Targeting the folate receptor: diagnostic and therapeutic approaches to personalize cancer treatments. Ann Oncol. 2015;26(10):2034–43. https://doi.org/10.1093/annonc/mdv250</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Narmani A, Rezvani M, Farhood B, Darkhor P, Mohammadnejad J, Amini B, et al. Folic acid functionalized nanoparticles as pharmaceutical carriers in drug delivery systems. Drug Dev Res. 2019;80(4):404– 24. https://doi.org/10.1002/ddr.21545</mixed-citation><mixed-citation xml:lang="en">Narmani A, Rezvani M, Farhood B, Darkhor P, Mohammadnejad J, Amini B, et al. Folic acid functionalized nanoparticles as pharmaceutical carriers in drug delivery systems. Drug Dev Res. 2019;80(4):404– 24. https://doi.org/10.1002/ddr.21545</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Arcot J, Shrestha A. Folate: methods of analysis. Trends Food Sci Technol. 2005;16(6–7):253–66. https://doi.org/10.1016/j.tifs.2005.03.013</mixed-citation><mixed-citation xml:lang="en">Arcot J, Shrestha A. Folate: methods of analysis. Trends Food Sci Technol. 2005;16(6–7):253–66. https://doi.org/10.1016/j.tifs.2005.03.013</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Konings EJ. A validated liquid chromatographic method for determining folates in vegetables, milk powder, liver and flour. J AOAC Int. 1999;82(1):119–27. PMID: 10028680</mixed-citation><mixed-citation xml:lang="en">Konings EJ. A validated liquid chromatographic method for determining folates in vegetables, milk powder, liver and flour. J AOAC Int. 1999;82(1):119–27. PMID: 10028680</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Бендрышев АА, Пашкова ЕБ, Пирогов АВ, Шпигун ОА. Определение водорастворимых витаминов в поливитаминных премиксах, биологически-активных добавках и фармацевтических препаратах методом высоко-эффективной жидкостной хроматографии с градиентным элюированием. Вестник Московского университета. Серия 2. Химия. 2010;51(4):315–24.</mixed-citation><mixed-citation xml:lang="en">Bendryshev AA, Pashkova EB, Pirogov AV, Shpigun OA. Determination of water soluble vitamins in multivitamin premixes, biologically active dietary supplements and pharmaceutical preparation by HPLC with gradient elution. Vestnik Moskovskogo universiteta. Seriya 2. Khimiya = Moscow University Bulletin. Series 2. Chemistry. 2010;51(4):315–24 (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Филимонов ВН, Сирицо СИ, Макрушин НА. Особенности хроматографического разделения водорастворимых витаминов в изократической ОФ ВЭЖХ. Сорбционные и хроматографические процессы. 2006;6(2):191–197.</mixed-citation><mixed-citation xml:lang="en">Filimonov VN, Siritso SI, Makrushin NA. Features of chromatographic separation of water-soluble vitamins in isocratic RP HPLC. Sorbtsionnye i khromatograficheskie protsessy = Sorption and Chromatography Processes. 2006;6(2):191–7 (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Vahteristo L, Lehikoinen K, Ollilainen V, Varo P. Application of an HPLC assay for the determination of folate derivatives in some vegetables, fruits and berries consumed in Finland. Food Chem. 1997;59(4):589–97. https://doi.org/10.1016/s0308-8146(96)00318-4</mixed-citation><mixed-citation xml:lang="en">Vahteristo L, Lehikoinen K, Ollilainen V, Varo P. Application of an HPLC assay for the determination of folate derivatives in some vegetables, fruits and berries consumed in Finland. Food Chem. 1997;59(4):589–97. https://doi.org/10.1016/s0308-8146(96)00318-4</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Osseyi ES, Wehling RL, Albrecht JA. HPLC determination of stability and distribution of added folic acid and some endogenous folates during breadmaking. Cereal Chem. 2001;78(4):375–8. https://doi.org/10.1094/CCHEM.2001.78.4.375</mixed-citation><mixed-citation xml:lang="en">Osseyi ES, Wehling RL, Albrecht JA. HPLC determination of stability and distribution of added folic acid and some endogenous folates during breadmaking. Cereal Chem. 2001;78(4):375–8. https://doi.org/10.1094/CCHEM.2001.78.4.375</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Шинева НВ, Гаврилин МВ, Старчак ЮА, Макаров СВ. Метрологические требования к измерительному оборудованию (обзор). Разработка и регистрация лекарственных средств. 2020;9(3):173–81. https://doi.org/10.33380/2305-2066-2020-9-3-173-181</mixed-citation><mixed-citation xml:lang="en">Shineva NV, Gavrilin MV, Starchak YuA, Makarov SV. Metrological requirements to measuring equipment. Razrabotka i registratsiya lekarstvennykh sredstv = Drug Development and Registration. 2020;9(3):173–81 (In Russ.) https://doi.org/10.33380/2305-2066-2020-9-3-173-181</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
