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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">zldm</journal-id><journal-title-group><journal-title xml:lang="ru">Заводская лаборатория. Диагностика материалов</journal-title><trans-title-group xml:lang="en"><trans-title>Industrial laboratory. Diagnostics of materials</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1028-6861</issn><issn pub-type="epub">2588-0187</issn><publisher><publisher-name>ООО «Издательство «ТЕСТ-ЗЛ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26896/1028-6861-2024-90-6-5-14</article-id><article-id custom-type="elpub" pub-id-type="custom">zldm-2223</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>АНАЛИЗ ВЕЩЕСТВА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SUBSTANCES ANALYSIS</subject></subj-group></article-categories><title-group><article-title>Сенсорный гранулированный материал на основе импрегнированного композита «сшитый поливиниловый спирт – магнетит» для определения углеводов методом оптической микрометрии</article-title><trans-title-group xml:lang="en"><trans-title>A sensory granular material based on impregnated composite «cross-linked polyvinyl alcohol – magnetite» for the determination of carbohydrates by optical micrometry</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>Щемелев</surname><given-names>И. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Shchemelev</surname><given-names>I. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иван Сергеевич Щемелев,</p><p>119991, Москва, Ленинские горы, д. 1, стр. 3.</p></bio><bio xml:lang="en"><p>Ivan S. Shchemelev,</p><p>Moscow.</p></bio><email xlink:type="simple">shchemelev_93@mail.ru</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>Зиновьев</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zinov’ev</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Николай Андреевич Зиновьев,</p><p>119991, Москва, Ленинские горы, д. 1, стр. 3.</p></bio><bio xml:lang="en"><p>Nikolay A. Zinov’ev,</p><p>Moscow.</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>Иванов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Вадимович Иванов, </p><p>119991, Москва, Ленинские горы, д. 1, стр. 3;</p><p>119991, Москва, Ленинский проспект, д. 31.</p></bio><bio xml:lang="en"><p>Alexander V. Ivanov,</p><p>Moscow.</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>Ферапонтов</surname><given-names>Н. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Ferapontov</surname><given-names>N. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Николай Борисович Ферапонтов,</p><p>119991, Москва, Ленинские горы, д. 1, стр. 3.</p></bio><bio xml:lang="en"><p>Nikolay B. Ferapontov,</p><p>Moscow.</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>Михеев</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mikheev</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иван Владимирович Михеев,</p><p>119991, Москва, Ленинские горы, д. 1, стр. 3.</p></bio><bio xml:lang="en"><p>Ivan V. Mikheev, </p><p>Moscow.</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>Гагарин</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Gagarin</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Николаевич Гагарин, </p><p>119334, Москва, ул. Косыгина, д. 19, стр. 1.</p></bio><bio xml:lang="en"><p>Alexander N. Gagarin, </p><p>Moscow.</p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский государственный университет имени М. В. Ломоносова, Химический факультет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lomonosov Moscow State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Московский государственный университет имени М. В. Ломоносова, Химический факультет;&#13;
Институт общей и неорганической химии им. Н. С. Курнакова РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lomonosov Moscow State University;&#13;
&#13;
Kurnakov Institute of General and Inorganic Chemistry of the RAS</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Институт геохимии и аналитической химии им. В. И. Вернадского РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Vernadskii Institute of Geochemistry and Analytical Chemistry of the RAS</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>21</day><month>06</month><year>2024</year></pub-date><volume>90</volume><issue>6</issue><fpage>5</fpage><lpage>14</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Щемелев И.С., Зиновьев Н.А., Иванов А.В., Ферапонтов Н.Б., Михеев И.В., Гагарин А.Н., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Щемелев И.С., Зиновьев Н.А., Иванов А.В., Ферапонтов Н.Б., Михеев И.В., Гагарин А.Н.</copyright-holder><copyright-holder xml:lang="en">Shchemelev I.S., Zinov’ev N.A., Ivanov A.V., Ferapontov N.B., Mikheev I.V., Gagarin A.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.zldm.ru/jour/article/view/2223">https://www.zldm.ru/jour/article/view/2223</self-uri><abstract><p>Рассмотрены получение композитного материала «сшитый поливиниловый спирт – магнетит», импрегнированного раствором тетрабората натрия, и его применение в качестве чувствительного элемента для определения углеводов в водных растворах методом оптической микрометрии. Методом ИК-спектроскопии подтверждена химическая структура исследуемого полимера. С помощью кривых намагничивания рассчитано содержание частиц Fe3O4 в гранулах поливинилового спирта (ПВС). Показано, что при pH среды 6,8 внедрение магнетита в гранулы сужает диапазон определяемых содержаний углеводов и снижает чувствительность матрицы ПВС к ним; однако при pH 8,6 наличие частиц Fe3O4 в гранулах не увеличивает предел обнаружения глюкозы и фруктозы (7,9 ммоль/дм3), но позволяет снизить относительные стандартные отклонения их определения до 3 % масс. Сенсорные гранулы с оптимальным содержанием магнетита (1,54 %) апробированы при определении методом оптической микрометрии суммарного содержания углеводов в образцах натуральных сиропов с высоким содержанием фруктозы. Полученные результаты хорошо согласуются с данными, указанными производителями сиропов.</p></abstract><trans-abstract xml:lang="en"><p>Synthesis and application of a composite material «cross-linked polyvinyl alcohol (PVA) – magnetite» as a sensitive element for the determination of carbohydrates by optical micrometry has been studied. The chemical structure was confirmed by IR-spectroscopy. The content of Fe3O4 in PVA granules was calculated using magnetization curves. It is shown that the introduction of Fe3O4 particles into PVA granules at pH value of buffer solution 6.8 significantly narrows the range of carbohydrate concentrations to be determined and reduces the sensitivity of PVA to them. However, at pH 8.6 the presence of Fe3O4 particles in granules does not affect the metrological characteristics of the glucose and fructose determination (their detection limit equals 7.9 mmol/dm3) but reduces the relative standard deviation of their determination to 3 wt.%. Sensory granules with optimal magnetite content (1.54%) were tested in the determination of total content of glucose and fructose in natural syrups with a high level of fructose by optical micrometry. The results obtained match the accepted reference values specified by the syrup manufacturers.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>композитные чувствительные материалы</kwd><kwd>поливиниловый спирт</kwd><kwd>магнетит</kwd><kwd>метод оптической микрометрии</kwd><kwd>определение углеводов</kwd></kwd-group><kwd-group xml:lang="en"><kwd>composite sensitive materials</kwd><kwd>polyvinyl alcohol</kwd><kwd>magnetite</kwd><kwd>optical micrometry</kwd><kwd>carbohydrates determination</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Минобрнауки России в рамках государственных заданий МГУ (регистрационный номер АААА-А21-121011590089-1) и ИОНХ РАН (регистрационный номер 1021071612841-6-1.4.7).</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">Shou W., Yang Sh.-T., Wang Y.-L., Guo L.-H. 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