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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">10.26896/1028-6861-2019-85-9-15-21</article-id><article-id custom-type="elpub" pub-id-type="custom">zldm-1057</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>Образование ионных ассоциатов с пирогаллоловыми комплексами сурьмы (III) и их применение для ее спектрофотометрического определения</article-title><trans-title-group xml:lang="en"><trans-title>Formation of ionic associates with pyrogallol complexes of antimony (III) and their application for spectrophotometric determination of antimony</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>Турусова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Turusova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Турусова Елена Васильевна </p><p>428015, Чебоксары, Московский пр-т, 15</p></bio><bio xml:lang="en"><p>Elena V. Turusova</p><p> 15, Moskovsky pr, Cheboksary, 428015</p></bio><email xlink:type="simple">elvastur@ya.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>Лышиков</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Lyshchikov</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Лышиков Анатолий Николаевич</p><p>428015, Чебоксары, Московский пр-т, 15</p></bio><bio xml:lang="en"><p>Anatolii N. Lyshchikov</p><p> 15, Moskovsky pr, Cheboksary, 428015</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>Насакин</surname><given-names>О. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Nasakin</surname><given-names>O. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Насакин Олег Евгеньевич </p><p>428015, Чебоксары, Московский пр-т, 15</p></bio><bio xml:lang="en"><p>Oleg E. Nasakin</p><p> 15, Moskovsky pr, Cheboksary, 428015</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>Андреева</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Andreeva</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андреева Екатерина Васильевна </p><p>428015, Чебоксары, Московский пр-т, 15</p></bio><bio xml:lang="en"><p>Ekaterina V. Andreeva </p><p> 15, Moskovsky pr, Cheboksary, 428015</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Чувашский государственный университет имени И. Н. Ульянова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>I. N. Ulyanov Chuvash State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>28</day><month>09</month><year>2019</year></pub-date><volume>85</volume><issue>9</issue><fpage>15</fpage><lpage>21</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Турусова Е.В., Лышиков А.Н., Насакин О.Е., Андреева Е.В., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Турусова Е.В., Лышиков А.Н., Насакин О.Е., Андреева Е.В.</copyright-holder><copyright-holder xml:lang="en">Turusova E.V., Lyshchikov A.N., Nasakin O.E., Andreeva A.V.</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/1057">https://www.zldm.ru/jour/article/view/1057</self-uri><abstract><p>Исследована возможность применения пирогаллолового красного водорастворимого (ПГКВ) в качестве фотометрического реагента для определения сурьмы в реальных объектах. Образование окрашенного продукта наблюдается в кислых растворах (рН = 3,8 - 4,5) в присутствии слабого окислителя (йода), необходимого для предварительного окисления SbH3 до солей Sb (III). Избыток йода устраняют введением раствора тиосульфата натрия, после получения фотометрируемой формы. Максимальный аналитический сигнал окрашенной формы наблюдается при 378 им (е = 5,936 • 103). Повышение кислотности раствора (рН &gt; 7) сопровождается образованием натриевых солей реагента, что препятствует дальнейшему протеканию реакции, а наличие одного максимума оптической плотности в рекомендуемом интервале значений рН является непосредственным подтверждением образования ионного ассоциата (ИА) одного состава. Исследование устойчивости данного ИА во времени выявило его низкую стабильность. К сожалению, изменение диэлектрической проницаемости раствора не дало положительного эффекта, в связи с чем возникает необходимость измерения оптической плотности окрашенного соединения в течение 3 мин. Установление состава, а следовательно, и возможного механизма образования ИА, осуществляли на основании методов молярных отношений и изомолярных серий. В результате отгона стибина в поглотительную систему образуется ИА состава M:R = 1:1, с рассчитанной константой устойчивости 4,01 • 105. Таким образом, на основании проведенных исследований разработана спектрофотометрическая (СФ) методика определения сурьмы с пределами обнаружения и определения 1,30 и 4,32 мкг/мл соответственно. Разработанная методика валидна по показателям: специфичность, линейность, прицензионность, правильность и, следовательно, может быть рекомендована к применению в любой контрольно-аналитической лаборатории для определения сурьмы.</p></abstract><trans-abstract xml:lang="en"><p>The possibility of using water soluble pyrogallol red (PRWS) as a photometric reagent for the quantitative determination of antimony (III) in real objects has been studied. Formation of a colored product is observed in acidic solutions (pH 3.8 - 4.5) with a weak oxidizing agent (iodine) present for preliminary oxidation of SbHg to salts of Sb (III). The excess iodine is eliminated through introduction of sodium thiosulfate solution after obtaining the photometric form. The maximum analytical signal of the colored form is observed at 378 nm (e = 5.936 x 103). A decrease in the acidity of the solution (pH &gt; 7) is accompanied by the formation of sodium salts of the reagent which prevents further complexation, whereas the only one maximum in the absorbance within the recommended pH range directly indicates to the formation of the the only one ionic associate (AI). The ionic associate thus formed appeared low stability in time. Unfortunately, change in the dielectric constant of the solution failed to give a positive effect and measurements of the absorbance of the colored compound were limited to 3 minutes. Determination of the composition and possible mechanism of the ionic associate formation was carried out on using the methods of molar ratios and isomolar series. After stripping of stibine into the absorption system, an ionic associate of the composition M:R = 1:1 is formed with a calculated stability constant of 4.01 x 105. The obtained results are used to develop a spectrophotometric (SP) method for antimony determination with the limits of detection and quantitative determination of the element 1.30 and 4.32 pg/ml, respectively. The developed method is valid in terms of the specificity, linearity, precision and accuracy, and, therefore, can be recommended for determination of the antimony content in any control and analytical laboratory.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>стибин</kwd><kwd>пирогаллоловый красный водорастворимый</kwd><kwd>ионный ассоциат</kwd><kwd>определение</kwd><kwd>спектрофотометрия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>stibine</kwd><kwd>water soluble pyrogallol red</kwd><kwd>ionic associate</kwd><kwd>determination</kwd><kwd>spectophotometry</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">Sato S., Uchikawa S., Iwamoto E., Yamamoto Y. Spectrophotometric Determination of Antimony (III) By Solvent Extraction with Mandelic Acid and Malachite Green / Anal. Lett. 1983. Vol. 16. N 11. E 827 - 834. 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