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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">sudexpert</journal-id><journal-title-group><journal-title xml:lang="ru">Теория и практика судебной экспертизы</journal-title><trans-title-group xml:lang="en"><trans-title>Theory and Practice of Forensic Science</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1819-2785</issn><issn pub-type="epub">2587-7275</issn><publisher><publisher-name>The Russian Federal Centre of Forensic Science</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30764/1819-2785-2020-4-19-26</article-id><article-id custom-type="elpub" pub-id-type="custom">sudexpert-573</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>ЭКСПЕРТНАЯ ПРАКТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>FORENSIC CASEWORK</subject></subj-group></article-categories><title-group><article-title>О разложении наркотического средства α-пирролидиновалерофенона в насвае</article-title><trans-title-group xml:lang="en"><trans-title>On the Decomposition of the Narcotic α-pyrrolidinovalerophenone in Nasway</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>Модинова</surname><given-names>Л. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Modinova</surname><given-names>L. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Модинова Лариса Ивановна – к. х. н., заместитель начальника отдела криминалистических экспертиз материалов, веществ, изделий ЭКЦ ГУ МВД России по Нижегородской области</p><p>Нижний Новгород 603134</p></bio><bio xml:lang="en"><p>Larisa Ivanovna Modinova – Candidate of Chemistry, Deputy Head of the Department of Forensic Examinations of Materials, Substances, Products; Forensic center of the Main Department of the Ministry of Internal Affairs of the Russian Federation in the Nizhny Novgorod region</p><p>Nizhny Novgorod, 603134</p></bio><email xlink:type="simple">lmodinova@mvd.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>Пантелеева</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Panteleeva</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пантелеева Ольга Викторовна – главный эксперт отдела криминалистических экспертиз материалов, веществ, изделий ЭКЦ ГУ МВД по Нижегородской области</p><p>Нижний Новгород 603134</p></bio><bio xml:lang="en"><p>Olga Viktorovna Panteleeva – Chief Expert, Department of Forensic Examinations of Materials, Substances, Products; Forensic Center of the Main Department of the Ministry of Internal Affairs of the Russian Federation in the Nizhny Novgorod region</p><p>Nizhny Novgorod, 603134</p></bio><email xlink:type="simple">opanteleeva4@mvd.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Экспертно-криминалистический центр Главного управления Министерства внутренних дел Российской Федерации по Нижегородской области</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Forensic Center of the Main Department of the Ministry of Internal Affairs of the Russian Federation for the Nizhny Novgorod region</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>25</day><month>12</month><year>2020</year></pub-date><volume>15</volume><issue>4</issue><fpage>19</fpage><lpage>26</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Модинова Л.И., Пантелеева О.В., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Модинова Л.И., Пантелеева О.В.</copyright-holder><copyright-holder xml:lang="en">Modinova L.I., Panteleeva O.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.tipse.ru/jour/article/view/573">https://www.tipse.ru/jour/article/view/573</self-uri><abstract><p>Приведена информация о разложении наркотического средства α-пирролидиновалерофенона (α-PVP) в насвае, представлены результаты исследования скорости разложения данного наркотического средства в щелочной среде. Показано, что через неделю содержание α-PVP в насвае уменьшается почти в два раза, а через 1,5–2 месяца в образце насвая α-PVP не обнаруживается. Аналогичные результаты были получены для водных щелочных растворов α-PVP.</p><p>Полученная информация может быть полезна экспертам специализации «исследование наркотических средств, психотропных веществ и их прекурсоров, сильнодействующих и ядовитых веществ» при производстве экспертиз и исследований.</p></abstract><trans-abstract xml:lang="en"><p>The article provides information on the decomposition of the narcotic α-pyrrolidinovalerophenone (α-PVP) in nasway and the results of the study of the decomposition rate for the drug in an alkaline environment. It is shown that in a week, the content of α-PVP in nasway reduces by almost two times, and in 1,5–2 months, it is not found in the sample. Similar results were acquired for aqueous alkaline solutions of α-PVP.</p><p>The information obtained can be useful for experts specializing in “research of narcotics, psychotropic substances and their precursors, potent and poisonous substances” when conducting examinations and research.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>α-пирролидиновалерофенон</kwd><kwd>насвай</kwd><kwd>скорость разложения</kwd><kwd>хромато-массспектрометрия</kwd><kwd>порядок реакции</kwd></kwd-group><kwd-group xml:lang="en"><kwd>α-pyrrolidinovalerophenone</kwd><kwd>nasway</kwd><kwd>decomposition rate</kwd><kwd>chromatography-mass spectrometry</kwd><kwd>reaction order</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">Завьялова А.А., Завьялов В.В., Моргункова Ю.М., Любецкий Г.В., Семенов С.И. Криминалистическое исследование некурительных табачных смесей. Методические рекомендации. 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