<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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-1984</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>Алгоритм спектрального разложения для измерения химического потребления кислорода в воде на основе спектроскопии поглощения в УФ-видимом диапазоне</article-title><trans-title-group xml:lang="en"><trans-title>Spectral Decomposition Method for Water Chemical Oxygen Demand Measurement Based on UV-Vis Absorption Spectroscopy</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>Hu</surname><given-names>Y.</given-names></name><name name-style="western" xml:lang="en"><surname>Hu</surname><given-names>Yingtian</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ханчжоу</p></bio><bio xml:lang="en"><p>Hangzhou</p></bio><email xlink:type="simple">huyt@zjut.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>Miao</surname><given-names>W.</given-names></name><name name-style="western" xml:lang="en"><surname>Miao</surname><given-names>Wenjie</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ханчжоу</p></bio><bio xml:lang="en"><p>Hangzhou</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>He</surname><given-names>Z.</given-names></name><name name-style="western" xml:lang="en"><surname>He</surname><given-names>Zhize</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ханчжоу</p></bio><bio xml:lang="en"><p>Hangzhou</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>Miao</surname><given-names>Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Miao</surname><given-names>Enyang</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ханчжоу</p></bio><bio xml:lang="en"><p>Hangzhou</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>Zhao</surname><given-names>D.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhao</surname><given-names>Dongdong</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ханчжоу</p></bio><bio xml:lang="en"><p>Hangzhou</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Колледж информационной инженерии, Чжэцзянский технологический университет</institution></aff><aff xml:lang="en"><institution>College of Information Engineering, Zhejiang University of Technology</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Колледж компьютерных наук и технологий, Чжэцзянский технологический университет</institution></aff><aff xml:lang="en"><institution>College of Computer Science and Technology, Zhejiang University of Technology</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>26</day><month>09</month><year>2025</year></pub-date><volume>92</volume><issue>5</issue><fpage>707</fpage><lpage>707</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Hu Y., Miao W., He Z., Miao Е., Zhao D., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Hu Y., Miao W., He Z., Miao Е., Zhao D.</copyright-holder><copyright-holder xml:lang="en">Hu Y., Miao W., He Z., Miao E., Zhao D.</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/1984">https://zhps.ejournal.by/jour/article/view/1984</self-uri><abstract><p>Представлен метод спектрального разложения, модифицированный алгоритмом GMM (Gaussian mixture module). Первый ключевой момент — обход процесса генерации случайных данных для уменьшения погрешности; второй – замена гауссовой модели на бигауссову модель для преодоления ограничений традиционных симметричных гауссовых приближений. Сравнительный анализ с алгоритмом Левенберга–Марквардта и стандартными методами GMM демонстрирует превосходную точность представленного метода, о чем свидетельствует минимизация ошибок спектральной реконструкции во всех протестированных диапазонах длин волн. Эффективность данного метода разложения для определения химического потребления кислорода оценена в серии экспериментов с реальными образцами сточных вод различных предприятий. Анализ показал меньшую среднеквадратичную ошибку (RMSE) при использовании B-полосы бензольного кольца после процедуры разложения по сравнению с методами поиска пиков и фиксированных длин волн. Предложенный метод позволяет повысить экологичность определения химического потребления кислорода.</p></abstract><trans-abstract xml:lang="en"><p>We introduce a spectral decomposition method by modifying the GMM (Gaussian mixture module) algorithm. The first key point is to circumvent the process of random data generation for less error; the second key point is to replace the Gaussian model with a bi-Gaussian model to overcome the limitations of conventional symmetric Gaussian approximations. Comparative analysis with the Levenberg–Marquardt algorithm and standard GMM approaches demonstrates the superior accuracy of our method, as evidenced by the minimization of spectral reconstruction errors across all tested wavelength regimes. The effectiveness of this decomposition method for chemical oxygen demand (COD) detection was assessed via a series of experiments with real samples of sewage from various plants. The analysis showed less root mean squared error (RMSE) value by using the B-band of the benzene ring after the procedure of decomposition in contrast to the methods of peak searching and fixed wavelengths. The proposed method can improve the environmental suitability of COD detection effectively.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>спектральное разложение</kwd><kwd>спектр поглощения</kwd><kwd>алгоритм GMM</kwd><kwd>полоса поглощения</kwd><kwd>химическое потребление кислорода</kwd></kwd-group><kwd-group xml:lang="en"><kwd>spectral decomposition</kwd><kwd>absorption spectrum</kwd><kwd>GMM algorithm</kwd><kwd>absorptive band</kwd><kwd>COD detection</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This study was supported by the Natural Science Foundation of Zhejiang Province (Project  No. LMS25F010004) and the National Natural Science Foundation of China (Project No. 62005245 and  No. 62371421).</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">G. Langergraber, J. Gupta, A. Pressl, F. Hofstaedter, W. Lettl, A. Weingartner, N. Fleischmann, Water Sci. and Tech., 50, No. 10, 73–80 (2004).</mixed-citation><mixed-citation xml:lang="en">G. Langergraber, J. Gupta, A. Pressl, F. Hofstaedter, W. Lettl, A. Weingartner, N. Fleischmann, Water Sci. and Tech., 50, No. 10, 73–80 (2004).</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">G. Langergraber, A. Weingartner, N. Fleischmann, Water Sci. and Tech., 50, No. 11, 13–20 (2004).</mixed-citation><mixed-citation xml:lang="en">G. Langergraber, A. Weingartner, N. Fleischmann, Water Sci. and Tech., 50, No. 11, 13–20 (2004).</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Y. S. Yuan, J. X. Fu, J. Liu, Liaoning Chem. Ind., 39, No. 4, 448–450, 456 (2010).</mixed-citation><mixed-citation xml:lang="en">Y. S. Yuan, J. X. Fu, J. Liu, Liaoning Chem. Ind., 39, No. 4, 448–450, 456 (2010).</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Y. Q. Zhao, H. M. Wang, Z. Y. Liu, Y. C. Li, S. F. Fan, Chin. J. Sci. Instrument, 31, No. 9, 1927–1932 (2010).</mixed-citation><mixed-citation xml:lang="en">Y. Q. Zhao, H. M. Wang, Z. Y. Liu, Y. C. Li, S. F. Fan, Chin. J. Sci. Instrument, 31, No. 9, 1927–1932 (2010).</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Y. T. Hu, X. P. Wang, Sensors and Actuators B: Chem., 239, 718–726 (2017).</mixed-citation><mixed-citation xml:lang="en">Y. T. Hu, X. P. Wang, Sensors and Actuators B: Chem., 239, 718–726 (2017).</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">B. Q. Ye, X. J. Cao, H. Liu, Y. Wang, B. Tang, C. H. Chen, Q. Chen, Front. Environ. Sci., 10, No. 938, 239 (2022).</mixed-citation><mixed-citation xml:lang="en">B. Q. Ye, X. J. Cao, H. Liu, Y. Wang, B. Tang, C. H. Chen, Q. Chen, Front. Environ. Sci., 10, No. 938, 239 (2022).</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">M. Lu, Y.-t. Hu, Y. Gao, X.-P. Wang, Spectrosc. and Spectr. Analysis, 37, No. 12, 3797–3802 (2017).</mixed-citation><mixed-citation xml:lang="en">M. Lu, Y.-t. Hu, Y. Gao, X.-P. Wang, Spectrosc. and Spectr. Analysis, 37, No. 12, 3797–3802 (2017).</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">P. Massicotte, S. Markager, Marine Chem., 180, 24–32 (2016).</mixed-citation><mixed-citation xml:lang="en">P. Massicotte, S. Markager, Marine Chem., 180, 24–32 (2016).</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">X. Y. Wang, J. F. He, F. J. Nip, Z. L. Yuan, L. Liu, Spectrosc. Spectr. Analysis, 42, No. 1, 152–157 (2022).</mixed-citation><mixed-citation xml:lang="en">X. Y. Wang, J. F. He, F. J. Nip, Z. L. Yuan, L. Liu, Spectrosc. Spectr. Analysis, 42, No. 1, 152–157 (2022).</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Y. L. Chen, L. K. Dai, Anal. Sci., 35, No. 5, 511–515 (2019).</mixed-citation><mixed-citation xml:lang="en">Y. L. Chen, L. K. Dai, Anal. Sci., 35, No. 5, 511–515 (2019).</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">B. B. Cael, E. Boss, Opt. Express, 25, No. 21, 25486–25491 (2017).</mixed-citation><mixed-citation xml:lang="en">B. B. Cael, E. Boss, Opt. Express, 25, No. 21, 25486–25491 (2017).</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">S. K. Karimvand, H. Abdollahi, J. Chemometrics, 32, No. 12, e3074 (2018).</mixed-citation><mixed-citation xml:lang="en">S. K. Karimvand, H. Abdollahi, J. Chemometrics, 32, No. 12, e3074 (2018).</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">J. Li, L. Dai, H. Ruan, J. Chem. Ind. and Eng. (China), 63, No. 7, 2128–2135 (2012).</mixed-citation><mixed-citation xml:lang="en">J. Li, L. Dai, H. Ruan, J. Chem. Ind. and Eng. (China), 63, No. 7, 2128–2135 (2012).</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">D. Zhu, S. Sun, H. Yang, C. Zhang, Q. Zhu, K. Li, Y. Shi, Y. Chen, Acta Metrologica Sinica, 42, No. 10, 1386–1392 (2021).</mixed-citation><mixed-citation xml:lang="en">D. Zhu, S. Sun, H. Yang, C. Zhang, Q. Zhu, K. Li, Y. Shi, Y. Chen, Acta Metrologica Sinica, 42, No. 10, 1386–1392 (2021).</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">R. Wilson, “Multiresolution Gaussian Mixture Models: Theory and Applications”, Department of Computer Science (2000).</mixed-citation><mixed-citation xml:lang="en">R. Wilson, “Multiresolution Gaussian Mixture Models: Theory and Applications”, Department of Computer Science (2000).</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">H. Q. Huang, Z. S. He, F. Fang, D. C. Gong, W. C. Ding, At. Energy Sci. and Technology, 44, No. 9, 1114–1119 (2010).</mixed-citation><mixed-citation xml:lang="en">H. Q. Huang, Z. S. He, F. Fang, D. C. Gong, W. C. Ding, At. Energy Sci. and Technology, 44, No. 9, 1114–1119 (2010).</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">T. K. Vu, M. K. Hoang, H. L. Le, ICT Express, No. 2, 120–123 (2019).</mixed-citation><mixed-citation xml:lang="en">T. K. Vu, M. K. Hoang, H. L. Le, ICT Express, No. 2, 120–123 (2019).</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
