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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">10.26896/1028-6861-2023-89-3-5-13</article-id><article-id custom-type="elpub" pub-id-type="custom">zldm-1882</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>Модифицированные планарные сенсоры для определения цефепима</article-title><trans-title-group xml:lang="en"><trans-title>Modified planar sensors for cefepime determination</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>Кулапина</surname><given-names>Е. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Kulapina</surname><given-names>E. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Елена Григорьевна Кулапина</p><p>410012, г. Саратов, ул. Астраханская, д. 83</p></bio><bio xml:lang="en"><p>Elena G. Kulapina</p><p>410012, Saratov, ul. Astrakhanskya, 83</p></bio><email xlink:type="simple">kulapinaeg@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>Мурсалов</surname><given-names>Р. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Mursalov</surname><given-names>R. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Руслан Кямранович Мурсалов</p><p>410012, г. Саратов, ул. Астраханская, д. 83</p></bio><bio xml:lang="en"><p>Ruslan K. Mursalov</p><p>410012, Saratov, ul. Astrakhanskya, 83</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>Кулапина</surname><given-names>О. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kulapina</surname><given-names>O. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ольга Ивановна Кулапина</p><p>410012, г. Саратов, ул. Большая Казачья, д. 112</p></bio><bio xml:lang="en"><p>Olga I. Kulapina</p><p>410012, Saratov, ul. Bolshaya Kazach'ya, 112</p></bio><email xlink:type="simple">olgakulapina@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Анкина</surname><given-names>В. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Ankina</surname><given-names>V. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Влада Денисовна Анкина</p><p>410012, г. Саратов, ул. Большая Казачья, д. 112</p></bio><bio xml:lang="en"><p>Vlada D. Ankina</p><p>410012, Saratov, ul. Bolshaya Kazach'ya, 112</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>Чердакова</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Cherdakova</surname><given-names>E. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Елена Николаевна Чердакова</p><p>410012, г. Саратов, ул. Астраханская, д. 83</p></bio><bio xml:lang="en"><p>Elena N. Cherdakova</p><p>410012, Saratov, ul. Astrakhanskya, 83</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Саратовский национальный исследовательский государственный университет им. Н. Г. Чернышевского</institution><country>Россия</country></aff><aff xml:lang="en"><institution>N. G. Chernyshevsky Saratov National Research State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Саратовский государственный медицинский университет им. В. И. Разумовского</institution><country>Россия</country></aff><aff xml:lang="en"><institution>У. I. Razumovsky Saratov State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>23</day><month>03</month><year>2023</year></pub-date><volume>89</volume><issue>3</issue><fpage>5</fpage><lpage>13</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кулапина Е.Г., Мурсалов Р.К., Кулапина О.И., Анкина В.Д., Чердакова Е.Н., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Кулапина Е.Г., Мурсалов Р.К., Кулапина О.И., Анкина В.Д., Чердакова Е.Н.</copyright-holder><copyright-holder xml:lang="en">Kulapina E.G., Mursalov R.K., Kulapina O.I., Ankina V.D., Cherdakova E.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/1882">https://www.zldm.ru/jour/article/view/1882</self-uri><abstract><p>Разработаны планарные screen-printed потенциометрические сенсоры, чувствительные к цефалоспориновому антибиотику четвертого поколения — цефепиму. Цефепим — амфотерный антибиотик с карбоксильной и аминотиазольной группами, существующий в виде катиона в сильнокислой, цвиттер-иона — в слабокислой и нейтральной, аниона — в щелочной среде. Установлен интервал рН = 1,5 - 2,0 получения катионных электродных функций для определения цефепима. В качестве электродно-активньгх компонентов (ЭАК) использованы ассоциаты цефепим-тетрафенилборат; оптимальное содержание ЭАК для планарных сенсоров — 2 - 3 %. Интервалы линейности электродных функций — 1 • 10-5 - 1 • 10-2 моль/л, угловые коэффициенты — 50 ± 2 мВ/рС, время отклика — 20 с для немодифицированных сенсоров. Показана роль модификатора — наночастиц ZnO — в улучшении электроаналитических свойств сенсоров. Введение в углеродсодержащие чернила бинарной смеси оксида цинка и хлорида цетилпиридиния приводит к снижению предела обнаружения цефепима (1 • 10-6 моль/л), увеличению углового коэффициента (58 ± 1 мВ/рС) и интервала линейности электродных функций (1 • 10-6 - 1 • 10-2 моль/л), время отклика сенсора — 17 с. Использование ПАВ в качестве сомодификатора электродной поверхности приводит к стабилизации дисперсии наночастиц. Показано применение модифицированных screen-printed сенсоров для определения цефепима в лекарственных и биологических средах, в частности, в слюне.</p></abstract><trans-abstract xml:lang="en"><p>Planar screen-printed potentiometric sensors sensitive to cefepime, cephalosporine antibiotic of the fourth generation, has been developed. Cefepime is an amphoteric antibiotic with carboxyl and aminothiazole groups which exists as a cation in a strongly acidic media, a zwitter-ion in a weakly acidic and neutral media, and as an anion in an alkaline media. The interval of pH = 1.5 - 2.0 is set for obtaining cationic electrode functions for the cefepime determination. Cefepime-tetraphenylborate associates are used as electrode-active components (EAC). The optimal EAC content for planar sensors is 2-3%. The electrode functions are linear in the range of 1 x 10-5 - 1 x 10-2 M, angular coefficients 50 ± 2 mV/pC, response time 20 sec for unmodified cefepime sensors. The role of the modifier, ZnO nanoparticles, in improving the electroanalytic properties of sensors is shown. The introduction of a binary mixture of zinc oxide and cetylpyridinium chloride into carbon-containing ink leads to a decrease in the detection limit of cefepime (1 x КГ6 M), an increase in the angular coefficient (58 ± 1 mV/pC) and the interval of linearity of electrode functions (1 x 10-6 - 1 x 10-2 mole/liter), sensor response time being 17 sec. The use of a surfactant as an electrode surface comodifier leads to stabilization of the nanoparticle dispersion. The use of modified screen-printed sensors for the cefepime determination in medicinal and biological media, in particular, in saliva, is shown.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>цефепим</kwd><kwd>планарные потенциометрические сенсоры</kwd><kwd>наночастицы</kwd><kwd>катионные поверхностно-активные вещества</kwd><kwd>лекарственные и биологические среды</kwd></kwd-group><kwd-group xml:lang="en"><kwd>cefepime</kwd><kwd>planar potentiometric sensors</kwd><kwd>nanoparticles</kwd><kwd>cationic surface-active substances</kwd><kwd>medicinal and biological media</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке Российского научного фонда, проект № 22-23-00420.</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">Chauhan N., Balayan S., Gupta S., et al. 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