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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">rmjournal</journal-id><journal-title-group><journal-title xml:lang="ru">Эталоны. Стандартные  образцы</journal-title><trans-title-group xml:lang="en"><trans-title>Measurement Standards. Reference Materials</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2687-0886</issn><publisher><publisher-name>D. I. Mendeleyev Institute for Metrology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20915/2077-1177-2023-19-4-129-141</article-id><article-id custom-type="elpub" pub-id-type="custom">rmjournal-427</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>Современные методы анализа веществ и материалов</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Modern methods of analysis of substances and materials</subject></subj-group></article-categories><title-group><article-title>Определение висмута методом прямой кулонометрии с контролируемым потенциалом: разработка высокоточной методики с применением ГЭТ 176</article-title><trans-title-group xml:lang="en"><trans-title>Bismuth Determination by Controlled-Potential Coulometry: Developing a Highly Accurate Procedure based on GET 176</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>Зыскин</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Zyskin</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Зыскин Вениамин Михайлович – старший научный сотрудник лаборатории физических и химических методов метрологической аттестации стандартных образцов </p><p>620075, г. Екатеринбург, ул. Красноармейская, 4</p></bio><bio xml:lang="en"><p>Veniamin M. Zyskin – Leading Engineer, the Laboratory of Physical and Chemical Methods for Metrological Certification of Reference Materials</p><p>4 Krasnoarmeyskaya str., Yekaterinburg, 620075</p></bio><email xlink:type="simple">zuskinvm@uniim.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/0000-0002-5873-7326</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Собина</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sobina</surname><given-names>A. В.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Собина Алена Вячеславовна – канд. тех. наук, заведующий лабораторией физических и химических методов метрологической аттестации стандартных образцов </p><p>620075, г. Екатеринбург, ул. Красноармейская, 4</p></bio><bio xml:lang="en"><p>Alena V. Sobina – Cand. Sci. (Eng.), Head of the Laboratory of Physical and Chemical Methods for Metrological Certification of Reference Materials</p><p>4 Krasnoarmeyskaya str., Yekaterinburg, 620075</p></bio><email xlink:type="simple">SobinaAV@uniim.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>УНИИМ – филиал ФГУП «ВНИИМ им. Д. И. Менделеева»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>UNIIM – Affiliated Branch of the D. I. Mendeleyev Institute for Metrology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>25</day><month>09</month><year>2023</year></pub-date><volume>19</volume><issue>4</issue><fpage>129</fpage><lpage>141</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Зыскин В.М., Собина А.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Зыскин В.М., Собина А.В.</copyright-holder><copyright-holder xml:lang="en">Zyskin V.M., Sobina A.В.</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.rmjournal.ru/jour/article/view/427">https://www.rmjournal.ru/jour/article/view/427</self-uri><abstract><p>В статье представлены результаты исследований по разработке методики воспроизведения единиц массовой доли висмута в металлическом висмуте и массовой концентрации висмута (III) в растворах висмута азотнокислого методом кулонометрии с контролируемым потенциалом на Государственном первичном эталоне единиц массовой (молярной, атомной) доли и массовой (молярной) концентрации компонентов в жидких и твердых веществах и материалах на основе кулонометрии ГЭТ 176-2019.</p><p>Результаты работ могут быть использованы для производства стандартного образца состава висмута высокой чистоты и стандартного образца состава растворов ионов висмута (III) с прямой прослеживаемостью к ГЭТ 176-2019 для фармакопеи, металлургической и атомной промышленности.</p></abstract><trans-abstract xml:lang="en"><p>In this work, we develop a procedure for reproducing the units of bismuth mass fraction in metallic bismuth and those of bismuth (III) mass concentration in bismuth nitrate solutions by controlled-potential coulometry based on the GET 176-2019 State primary standard of mass (molar, atomic) fraction units and mass (molar) concentration of components in liquid and solid substances and materials based on coulometry. The results obtained can be used when manufacturing certified reference materials (CRMs) for the composition of high-purity bismuth and CRMs for the composition of solutions of bismuth (III) ions directly traceable to GET 176-2019. These CRMs may find application in pharmacological, metallurgical, and nuclear industries.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Государственный первичный эталон</kwd><kwd>ГЭТ 176</kwd><kwd>стандартный образец</kwd><kwd>кулонометрия с контролируемым потенциалом</kwd><kwd>массовая доля</kwd><kwd>висмут</kwd><kwd>прослеживаемость</kwd><kwd>стандартная неопределенность</kwd><kwd>массовая концентрация висмута</kwd></kwd-group><kwd-group xml:lang="en"><kwd>State primary standard</kwd><kwd>GET 176</kwd><kwd>certified reference material</kwd><kwd>CRM</kwd><kwd>controlled-potential coulometry</kwd><kwd>mass fraction</kwd><kwd>bismuth</kwd><kwd>traceability</kwd><kwd>standard uncertainty</kwd><kwd>bismuth mass concentration</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено в рамках работ по теме «Разработка, совершенствование, содержание государственных первичных эталонов единиц величин, а также разработка и совершенствование государственных первичных референтных методик (методов) измерений». Все измерения проводились с использованием оборудования УНИИМ – филиала ФГУП «ВНИИМ им. Д. И. Менделеева».</funding-statement><funding-statement xml:lang="en">The research was performed within the framework of the research theme «Development, improvement, and maintenance of the state primary measurement standards, as well as development and improvement of the state primary reference measurement procedures (methods)». All measurements were performed using the facilities of UNIIM, a branch of D. I. Mendeleyev All-Russian Institute for Metrology.</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">Юхин Ю. М., Михайлов Ю. И. Химия висмутовых соединений и материалов. Новосибирск: СО РАН, 2001. 360 с.</mixed-citation><mixed-citation xml:lang="en">Juhin Ju. M., Mihajlov Ju. I. Novosibirsk: SO RAN; 2001. 360 p. 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