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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">zhps</journal-id><journal-title-group><journal-title xml:lang="ru">Журнал прикладной спектроскопии</journal-title><trans-title-group xml:lang="en"><trans-title>Zhurnal Prikladnoii Spektroskopii</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0514-7506</issn><publisher><publisher-name>B. I. Stepanov Institute of Physics of the National Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">zhps-107</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>Статьи</subject></subj-group></article-categories><title-group><article-title>СПЕКТРОФОТОМЕТРИЧЕСКОЕ ОПРЕДЕЛЕНИЕ ОКСИДОВ АЗОТА В ВОЗДУХЕ С 2-N-ЭТИЛ-5-НАФТОЛ-7-СУЛЬФОНОВОЙ КИСЛОТОЙ</article-title><trans-title-group xml:lang="en"><trans-title>SPECTROPHOTOMETRIC DETERMINATION OF NITROGEN OXIDES IN THE AIR WITH 2-N-ETHYL-5-NAPHTHOL-7-SULFONIC ACID</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>Huang</surname><given-names>Y. .</given-names></name><name name-style="western" xml:lang="en"><surname>Huang</surname><given-names>Y. .</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Shi</surname><given-names>W. .</given-names></name><name name-style="western" xml:lang="en"><surname>Shi</surname><given-names>W. .</given-names></name></name-alternatives><email xlink:type="simple">wjshi@usst.edu.cn</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>Zhang</surname><given-names>C. .</given-names></name><name name-style="western" xml:lang="en"><surname>Zhang</surname><given-names>C. .</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Wen</surname><given-names>H. .</given-names></name><name name-style="western" xml:lang="en"><surname>Wen</surname><given-names>H. .</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Школа окружающей среды и архитектуры, Шанхайский университет науки и техники</institution></aff><aff xml:lang="en"><institution>School of Environment and Architecture, University of Shanghai for Science and Technology</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>10</day><month>03</month><year>2020</year></pub-date><volume>84</volume><issue>4</issue><fpage>616</fpage><lpage>622</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Huang Y..., Shi W..., Zhang C..., Wen H..., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Huang Y..., Shi W..., Zhang C..., Wen H...</copyright-holder><copyright-holder xml:lang="en">Huang Y..., Shi W..., Zhang C..., Wen H...</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://zhps.ejournal.by/jour/article/view/107">https://zhps.ejournal.by/jour/article/view/107</self-uri><abstract><p>Для определения окcидов азота в воздухе структура диазосоединений отбиралась и тестировалась экспериментально. Исследованы условия и методы реакций диазосоединений. Для определения оксидов азота в воздухе предложен спектрофотометрический метод, в котором сульфаниламид использован в качестве диазосоединения, а 2-N-этил-5-нафтол-7-сульфоновая кислота (N-этил-J-кислота) - в качестве связующего соединения. Максимальная длина волны поглощения азосоединения сульфаниламид-N-этил-J-кислоты 478 нм. Молярная поглощательная способность составляла 4.31 × 104 л/(моль · см) при воспроизводимости 98.7-100.9% и погрешности 1.85%. Предел измерения оксидов азота 0.015 мг/м3, диапазон измерения 0.024-2.0 мг/м3. Наблюдалась высокая степень корреляции между результатами, полученными предлагаемым и стандартными методами. Предлагаемый метод может быть легко применен для определения оксидов азота в воздухе. </p></abstract><trans-abstract xml:lang="en"><p>For the determination of nitrogen oxides in the air, the structure of diazo and coupling compounds was studied and tested by experiments. The conditions and methods of diazo and coupling reactions were investigated. Furthermore, a spectrophotometric method using sulfanilamide as a diazo compound and 2-N-ethyl-5-naphthol-7-sulfonic acid (N-ethyl J acid) as a coupling compound was proposed. The maximum absorption wavelength of Sulfanilamide-N-ethyl J acid azo compound was at 478 nm. The molar absorptivity was 4.31×104 L/(mol × cm) with a recovery of 98.7-100.9% and RSD of 1.85%. For nitrogen oxides, the determinate limit of this measurement was 0.015 mg/m3 and the determinate range 0.024-2.0 mg/m3. Moreover, a high degree of correlation was observed between the results obtained by the proposed method and the standard methods. The proposed method can be easily applied to determine nitrogen oxides in the air. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>оксиды азота</kwd><kwd>сульфаниламид</kwd><kwd>2-N-этил-5-нафтол-7-сульфоновая кислота (N-этил-J-кислота)</kwd><kwd>диазореакция</kwd><kwd>реакция сочетания</kwd><kwd>спектрофотометрия</kwd><kwd>nitrogen oxides</kwd><kwd>sulfanilamide</kwd><kwd>2-N-ethyl-5-naphthol-7-sulfonic acid (N-ethyl J acid)</kwd><kwd>diazo reaction</kwd><kwd>coupling reaction</kwd><kwd>spectrophotometry</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">P. Kovacic, R. Somanathan, In Encyclopedia of Toxicology (3rd еd.), Ed. P. Wexler, Academic Press, Oxford, 558-559 (2014).</mixed-citation><mixed-citation xml:lang="en">P. Kovacic, R. Somanathan, In Encyclopedia of Toxicology (3rd еd.), Ed. P. 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