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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 pub-id-type="doi">10.47612/0514-7506-2022-89-4-463-469</article-id><article-id custom-type="elpub" pub-id-type="custom">zhps-1084</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>Безэталонное ЛИЭС-определение  отношения Mn/Fe в железомарганцевых конкрециях с использованием портативного твердотельного лазера с диодной накачкой</article-title><trans-title-group xml:lang="en"><trans-title>Calibration Free LIBS for the Determination of Mn/Fe Ratio in Ferromanganese Nodules with Portable Diode Pumped Solid State Laser</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>Ахметжанов</surname><given-names>Т. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Akhmetzhanov</surname><given-names>T. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</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>Дроздова</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Drozdova</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</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>Попов</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Popov</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><email xlink:type="simple">popov@laser.chem.msu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский государственный университет имени М. В. Ломоносова</institution></aff><aff xml:lang="en"><institution>Lomonosov Moscow State University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт океанологии им. П. П. Ширшова Российской АН</institution></aff><aff xml:lang="en"><institution>P. P. Shirshov Institute of Oceanology of the Russian Academy of Sciences</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>26</day><month>07</month><year>2022</year></pub-date><volume>89</volume><issue>4</issue><fpage>463</fpage><lpage>469</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ахметжанов Т.Ф., Дроздова А.Н., Попов А.М., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Ахметжанов Т.Ф., Дроздова А.Н., Попов А.М.</copyright-holder><copyright-holder xml:lang="en">Akhmetzhanov T.F., Drozdova A.N., Popov A.M.</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/1084">https://zhps.ejournal.by/jour/article/view/1084</self-uri><abstract><p>Отношение Mn/Fe, служащее маркером содержания редкоземельных элементов и элементов платиновой группы в железомарганцевых конкрециях, определено в образцах, отобранных в ходе экспедиций в Карское море и море Лаптевых, а также в наборе стандартных образцов (ООПЕ 601—604). Анализ проведен методом лазерно-искровой эмиссионной спектрометрии без построения градуировочного графика, основанном на использовании только параметров плазмы и интенсивностей аналитических линий марганца и железа (Mn I 542.04 нм и Fe I 539.71 нм). Температура плазмы определена по графику Больцмана, ее электронная плотность — по штарковскому уширению линии Fe I 538.34 нм. Показана возможность определения отношения Mn/Fe в диапазоне от 0.2 до 4.2 в конкрециях различного географического происхождения. Достигнут высокий коэффициент линейной детерминации (R2 = 0.938) и пропорциональности между результатами лазерно-искровой эмиссионной спектрометрии и атомно-эмиссионного анализа с индуктивно-связанной плазмой (1:0.99).</p></abstract><trans-abstract xml:lang="en"><p>The Mn/Fe ratio, which serves as a marker of the content of rare earth elements and the platinum group elements in ferromanganese nodules, was determined in samples taken during expeditions to the Kara Sea and the Laptev Sea, as well as in a set of certified reference materials (ОOPE 601—604). The analysis was carried out by calibration-free laser-induced breakdown spectroscopy, based on the use of plasma parameters and intensities of analytical lines of manganese and iron (Mn I 542.04 nm and Fe I 539.71 nm). Boltzmann plot was used to determine the plasma temperature and Stark broadening of Fe I line 538.34 nm was used to determine electron density. We have shown the possibility of determining the Mn/Fe ratio in range from 0.2 to 4.2 in ferromanganese nodules of various geographic origin. A high coefficient of linear determination (R2 = 0.938) and proportionality between the results of calibration-free laser-induced breakdown spectroscopy and inductively coupled plasma atomic emission spectrometry (1:0.99) were achieved.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>лазерно-искровая эмиссионная спектроскопия</kwd><kwd>железомарганцевые конкреции</kwd><kwd>атомно-эмиссионный анализ с индуктивно-связанной плазмой</kwd></kwd-group><kwd-group xml:lang="en"><kwd>laser-induced breakdown spectroscopy</kwd><kwd>ferromanganese nodules</kwd><kwd>inductively coupled plasma atomic emission spectrometry</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке Российского фонда фундаментальных исследований  (грант № 19-33-90242).</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">D. S. Cronan. 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