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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">ikbgu</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Кабардино-Балкарского государственного университета</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the Kabardino-Balkarian State University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2221-7789</issn><publisher><publisher-name>Kabardino-Balkarian State University named after Kh. M. Berbekov</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31143/2221-7789-2025-4-26-32</article-id><article-id custom-type="edn" pub-id-type="custom">CHETPL</article-id><article-id custom-type="elpub" pub-id-type="custom">ikbgu-59</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>Физика</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Physics</subject></subj-group></article-categories><title-group><article-title>ИССЛЕДОВАНИЕ ЭЛЕМЕНТНОГО СОСТАВА БИОЛОГИЧЕСКИХ МАТЕРИАЛОВ МЕТОДАМИ ФОТОЭЛЕКТРОННОЙ И РАДИОНУКЛИДНОЙ СПЕКТРОСКОПИИ</article-title><trans-title-group xml:lang="en"><trans-title>STUDY OF THE ELEMENTAL COMPOSITION OF BIOLOGICAL MATERIALS BY METHODS OF PHOTOELECTRON AND RADIONUCLIDE SPECTROSCOPY</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>Реуцкая</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Reutskaya</surname><given-names>N. S.</given-names></name></name-alternatives><email xlink:type="simple">natalie@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>Калажоков</surname><given-names>Х. Х.</given-names></name><name name-style="western" xml:lang="en"><surname>Kalazhokov</surname><given-names>Kh. Kh.</given-names></name></name-alternatives><email xlink:type="simple">natalie@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>Гангапшев</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Gangapshev</surname><given-names>A. A.</given-names></name></name-alternatives><email xlink:type="simple">natalie@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>Коков</surname><given-names>З. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kokov</surname><given-names>Z. A.</given-names></name></name-alternatives><email xlink:type="simple">natalie@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>Жиляева</surname><given-names>К. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhiliyeva</surname><given-names>K. B.</given-names></name></name-alternatives><email xlink:type="simple">natalie@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>Дышеков</surname><given-names>А. Х.</given-names></name><name name-style="western" xml:lang="en"><surname>Dishekov</surname><given-names>A. Kh.</given-names></name></name-alternatives><email xlink:type="simple">natalie@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Кабардино-Балкарский государственный университет им. Х.М. Бербекова</institution></aff><aff xml:lang="en"><institution>Kabardino-Balkarian State University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Кабардино-Балкарский государственный университет им. Х.М. Бербекова; Баксанская нейтринная обсерватория Института ядерных исследований Российской академии наук</institution></aff><aff xml:lang="en"><institution>Kabardino-Balkarian State University; Baksan Neutrino Observatory of the Institute of Nuclear Research of the Russian Academy of Sciences</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Кабардино-Балкарский государственный аграрный университет им. В. М. Кокова</institution></aff><aff xml:lang="en"><institution>Kabardino-Balkarian State Agrarian University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>30</day><month>12</month><year>2025</year></pub-date><volume>15</volume><issue>4</issue><fpage>26</fpage><lpage>32</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Реуцкая Н.С., Калажоков Х.Х., Гангапшев А.М., Коков З.А., Жиляева К.Б., Дышеков А.Х., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Реуцкая Н.С., Калажоков Х.Х., Гангапшев А.М., Коков З.А., Жиляева К.Б., Дышеков А.Х.</copyright-holder><copyright-holder xml:lang="en">Reutskaya N.S., Kalazhokov K.K., Gangapshev A.A., Kokov Z.A., Zhiliyeva K.B., Dishekov A.K.</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.izvestiakbsu.ru/jour/article/view/59">https://www.izvestiakbsu.ru/jour/article/view/59</self-uri><abstract><p>Разработана методика подготовки и исследования элементного состава биологических материалов методом рентгеновской фотоэлектронной спектроскопии. Показана возможность измерения содержания радионуклидов в биологических материалах с помощью низкофоновой гамма- спектрометрии.</p></abstract><trans-abstract xml:lang="en"><p>A method for preparing and studying the elemental composition of biological materials using X-ray photoelectron spectroscopy has been developed. The possibility of measuring radionuclide content in biological materials using low-background gamma spectrometry has been demonstrated.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>элементный состав</kwd><kwd>метод РФЭС</kwd><kwd>радионуклиды</kwd><kwd>гамма-спектр</kwd><kwd>низкофоновый</kwd><kwd>биологический материал</kwd></kwd-group><kwd-group xml:lang="en"><kwd>elemental composition</kwd><kwd>XPS method</kwd><kwd>radionuclides</kwd><kwd>gamma spectrum</kwd><kwd>low-background</kwd><kwd>bio- logical material</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">Степанова М.В., Логинова М.О., Хуштов З.С. Особенности накопления микро-и макроэлемен- тов в конском волосе в зависимости от рациона кормления лошадей // Вестник АПК Верхневолжья. 2024. № 1. С. 74–81.</mixed-citation><mixed-citation xml:lang="en">Stepanova M.V., Loginova M.O., Khushtov Z.S. 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