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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-1229</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>АННОТАЦИИ АНГЛОЯЗЫЧНЫХ СТАТЕЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ABSTRACTS ENGLISH-LANGUAGE ARTICLES</subject></subj-group></article-categories><title-group><article-title>Определение состава сплавов золота методом спектроскопии лазерно-индуцированной плазмы с использованием алгоритма согласования экспериментальных и рассчитанных значений электронной плотности</article-title><trans-title-group xml:lang="en"><trans-title>Determination of the Gold Alloys Composition by Laser-Induced Plasma Spectroscopy Using an Algorithm for Matching Experimental and Calculated Values of Electron Number Density</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>Farooq</surname><given-names>Z.</given-names></name><name name-style="western" xml:lang="en"><surname>Farooq</surname><given-names>Z.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лахор</p></bio><bio xml:lang="en"><p>Lahore</p></bio><email xlink:type="simple">zahidv13@hotmail.com</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>Ali</surname><given-names>R.</given-names></name><name name-style="western" xml:lang="en"><surname>Ali</surname><given-names>R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Исламабад</p></bio><bio xml:lang="en"><p>Islamabad</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>Ahmed</surname><given-names>N.</given-names></name><name name-style="western" xml:lang="en"><surname>Ahmed</surname><given-names>N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Музаффарабад</p></bio><bio xml:lang="en"><p>Muzaffarabad</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Fahad</surname><given-names>M.</given-names></name><name name-style="western" xml:lang="en"><surname>Fahad</surname><given-names>M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Исламабад, Абботтабад</p></bio><bio xml:lang="en"><p>Islamabad;</p><p>Abbottabad</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ul Ahmad</surname><given-names>A.</given-names></name><name name-style="western" xml:lang="en"><surname>Ul Ahmad</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фейсалабад</p></bio><bio xml:lang="en"><p>Faisalabad</p></bio><xref ref-type="aff" rid="aff-5"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Yaseen</surname><given-names>M.</given-names></name><name name-style="western" xml:lang="en"><surname>Yaseen</surname><given-names>M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лахор</p></bio><bio xml:lang="en"><p>Lahore</p></bio><xref ref-type="aff" rid="aff-6"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Mahmood</surname><given-names>M. H.R.</given-names></name><name name-style="western" xml:lang="en"><surname>Mahmood</surname><given-names>M. H. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лахор</p></bio><bio xml:lang="en"><p>Lahore</p></bio><xref ref-type="aff" rid="aff-6"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Hussain</surname><given-names>S.</given-names></name><name name-style="western" xml:lang="en"><surname>Hussain</surname><given-names>S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лахор</p></bio><bio xml:lang="en"><p>Lahore</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>Rehan</surname><given-names>I.</given-names></name><name name-style="western" xml:lang="en"><surname>Rehan</surname><given-names>I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пешавар</p></bio><bio xml:lang="en"><p>Peshawar</p></bio><xref ref-type="aff" rid="aff-7"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Khan</surname><given-names>M. Z.</given-names></name><name name-style="western" xml:lang="en"><surname>Khan</surname><given-names>M. Z.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Исламабад</p></bio><bio xml:lang="en"><p>Peshawar</p></bio><xref ref-type="aff" rid="aff-7"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Jan</surname><given-names>T.</given-names></name><name name-style="western" xml:lang="en"><surname>Jan</surname><given-names>T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Исламабад</p></bio><bio xml:lang="en"><p>Islamabad</p></bio><xref ref-type="aff" rid="aff-8"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Qayyum</surname><given-names>M. A.</given-names></name><name name-style="western" xml:lang="en"><surname>Qayyum</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лахор</p></bio><bio xml:lang="en"><p>Lahore</p></bio><xref ref-type="aff" rid="aff-6"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Afzal</surname><given-names>M.</given-names></name><name name-style="western" xml:lang="en"><surname>Afzal</surname><given-names>M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лахор</p></bio><bio xml:lang="en"><p>Lahore</p></bio><xref ref-type="aff" rid="aff-9"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Mahr</surname><given-names>M. S.</given-names></name><name name-style="western" xml:lang="en"><surname>Mahr</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фейсалабад</p></bio><bio xml:lang="en"><p>Faisalabad</p></bio><xref ref-type="aff" rid="aff-10"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Shafique</surname><given-names>M.</given-names></name><name name-style="western" xml:lang="en"><surname>Shafique</surname><given-names>M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фейсалабад</p></bio><bio xml:lang="en"><p>Faisalabad</p></bio><xref ref-type="aff" rid="aff-10"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Отделение физики Образовательного университета</institution></aff><aff xml:lang="en"><institution>Department of Physics, Division of Science &amp; Technology, University of Education</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Университет Куэйд-и-Азам</institution></aff><aff xml:lang="en"><institution>Department of Physics, Quaid-e-Azam University</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Университет Азад Джамму и Кашмира</institution></aff><aff xml:lang="en"><institution>Department of Physics, University of Azad Jammu and Kashmir</institution></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Университет COMSATS</institution></aff><aff xml:lang="en"><institution>Department of Electrical and Computer Engineering, COMSATS University,&#13;
Abbottabad Campus</institution></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>Международный университет Рифа</institution></aff><aff xml:lang="en"><institution>Department of Physics, Riphah International University, Faisalabad Campus</institution></aff></aff-alternatives><aff-alternatives id="aff-6"><aff xml:lang="ru"><institution>Образовательный университет</institution></aff><aff xml:lang="en"><institution>Department of Chemistry, Division of Science &amp; Technology, University of Education</institution></aff></aff-alternatives><aff-alternatives id="aff-7"><aff xml:lang="ru"><institution>Отделение физики Исламского колледжа</institution></aff><aff xml:lang="en"><institution>Department of Physics, Islamia College University</institution></aff></aff-alternatives><aff-alternatives id="aff-8"><aff xml:lang="ru"><institution>Университет имени Алламы Икбала</institution></aff><aff xml:lang="en"><institution>Department of Physics, Allama Iqbal Open University</institution></aff></aff-alternatives><aff-alternatives id="aff-9"><aff xml:lang="ru"><institution>Отдел науки и технологий Образовательного университета</institution></aff><aff xml:lang="en"><institution>Department of Mathematics, Division of Science &amp; Technology, University of Education</institution></aff></aff-alternatives><aff-alternatives id="aff-10"><aff xml:lang="ru"><institution>Сельскохозяйственный университет</institution></aff><aff xml:lang="en"><institution>Department of Physics, University of Agriculture</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>04</day><month>02</month><year>2023</year></pub-date><volume>90</volume><issue>1</issue><fpage>115</fpage><lpage>115</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Farooq Z., Ali R., Ahmed N., Fahad M., ul Ahmad A., Yaseen M., Mahmood M.H., Hussain S., Rehan I., Khan M.Z., Jan T., Qayyum M.A., Afzal M., Mahr M.S., Shafique M., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Farooq Z., Ali R., Ahmed N., Fahad M., ul Ahmad A., Yaseen M., Mahmood M.H., Hussain S., Rehan I., Khan M.Z., Jan T., Qayyum M.A., Afzal M., Mahr M.S., Shafique M.</copyright-holder><copyright-holder xml:lang="en">Farooq Z., Ali R., Ahmed N., Fahad M., ul Ahmad A., Yaseen M., Mahmood M.H., Hussain S., Rehan I., Khan M.Z., Jan T., Qayyum M.A., Afzal M., Mahr M.S., Shafique 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/1229">https://zhps.ejournal.by/jour/article/view/1229</self-uri><abstract><p>Лазерно-искровая эмиссионная спектроскопия (LIBS) применена для качественного и количественного анализа сплавов золота. Для генерации плазмы на поверхности сплавов золота использован импульсный Nd:YAG-лазер с удвоенной частотой излучения. Температуры плазмы золота и меди рассчитаны с помощью графиков Больцмана, электронная плотность — с помощью уравнений Саха–Больцмана. Эффект самопоглощения в спектрах лазерно-индуцированного излучения оценен для коррекции интенсивности спектральных линий. Комбинированием подхода сохранения электронной плотности (ENDС) с LIBS разработан алгоритм определения состава сплавов золота путем сопоставления теоретических рассчитанных и полученных из LIBS-спектров значений электронной плотности. Сравнение результатов, полученных методом ENDС-LIBS и с помощью обычного подхода LIBS без калибровки и другого общепринятого аналитического подхода энергодисперсионного рентгеновского анализа, показало перспективность подхода ENDС-LIBS для анализа LIBS-спектров сплавов золота. </p></abstract><trans-abstract xml:lang="en"><p>Laser-induced breakdown spectroscopy (LIBS) was applied for qualitative and quantitative analysis of gold alloys. A frequency double-pulsed Nd:YAG laser was used to generate plasma on the surface of gold alloys. The plasma temperatures of gold and copper were calculated using Boltzmann plots whereas electron number densities were determined via Saha–Boltzmann equations. The effect of self-absorption in the laserinduced emission spectra was evaluated for correction in the intensity of spectral lines. By combining electron number density conservation approach (ENDC) with LIBS, an algorithm for gold alloys composition determination was derived by matching the theoretically derived ratios of the number densities and the experimentally obtained ratios of the number densities extracted from LIBS spectra. The results of ENDC-LIBS approach were compared with those estimated by a conventional calibration-free LIBS approach and other established analytical technique energy dispersive X-ray. The results clearly demonstrated that ENDC-LIBS methodology appeared to be very promising for analysis of LIBS spectra of gold alloys. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>лазерно-искровая эмиссионная спектроскопия</kwd><kwd>сплавы золота</kwd><kwd>лазерноиндуцированная плазма</kwd><kwd>самопоглощение</kwd><kwd>подход сохранения электронной плотности</kwd></kwd-group><kwd-group xml:lang="en"><kwd>laser-induced breakdown spectroscopy</kwd><kwd>gold alloys</kwd><kwd>laser-induced plasma</kwd><kwd>self-absorption</kwd><kwd>electron number density conservation approach</kwd></kwd-group><funding-group><funding-statement xml:lang="en">Financial support for this work was provided by the Higher Education Commission of Pakistan (NRPU Project No. 8884).</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">L. J. Radziemski, D. A. 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