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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Ekologiya cheloveka (Human Ecology)</journal-id><journal-title-group><journal-title xml:lang="en">Ekologiya cheloveka (Human Ecology)</journal-title><trans-title-group xml:lang="ru"><trans-title>Экология человека</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1728-0869</issn><issn publication-format="electronic">2949-1444</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">703282</article-id><article-id pub-id-type="doi">10.17816/humeco703282</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL STUDY ARTICLES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Unknown</subject></subj-group></article-categories><title-group><article-title xml:lang="en">SORPTION ACTIVITY OF REINDER ANTLER BONE TISSUE: THE INFLUENCE OF pH AND TEMPERATURE ON THE BINDING OF ZINC AND LEAD IONS</article-title><trans-title-group xml:lang="ru"><trans-title>ВЛИЯНИЕ рН И ТЕМПЕРАТУРЫ НА СОРБЦИЮ КОСТНОЙ ТКАНЬЮ РОГОВ СЕВЕРНОГО ОЛЕНЯ ИОНОВ ЦИНКА И СВИНЦА</trans-title></trans-title-group><trans-title-group xml:lang="zh"><trans-title/></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3883-998X</contrib-id><contrib-id contrib-id-type="spin">8128-5129</contrib-id><name-alternatives><name xml:lang="en"><surname>Korelskaya</surname><given-names>Tatiana A.</given-names></name><name xml:lang="ru"><surname>Корельская</surname><given-names>Татьяна Александровна</given-names></name><name xml:lang="zh"><surname>Korelskaya</surname><given-names>Tatiana A.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Chemistry), Associate Professor</p></bio><bio xml:lang="ru"><p>канд. хим. наук, доцент</p></bio><bio xml:lang="zh"><p>Cand. Sci. (Chemistry), Associate Professor</p></bio><email>takorelskaya@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5273-8686</contrib-id><contrib-id contrib-id-type="spin">5906-1730</contrib-id><name-alternatives><name xml:lang="en"><surname>Onokhina</surname><given-names>Natalia A.</given-names></name><name xml:lang="ru"><surname>Онохина</surname><given-names>Наталья Александровна</given-names></name><name xml:lang="zh"><surname>Onokhina</surname><given-names>Natalia A.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Engineering), Associate Professor</p></bio><bio xml:lang="ru"><p>канд. техн. наук, доцент</p></bio><bio xml:lang="zh"><p>Cand. Sci. (Engineering), Associate Professor</p></bio><email>onohina.76@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2064-7410</contrib-id><contrib-id contrib-id-type="spin">5449-3899</contrib-id><name-alternatives><name xml:lang="en"><surname>Aivazova</surname><given-names>Elena A.</given-names></name><name xml:lang="ru"><surname>Айвазова</surname><given-names>Елена Анатольевна</given-names></name><name xml:lang="zh"><surname>Aivazova</surname><given-names>Elena A.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Biology), Associate Professor</p></bio><bio xml:lang="ru"><p>канд. биол. наук, доцент</p></bio><bio xml:lang="zh"><p>Cand. Sci. (Biology), Associate Professor</p></bio><email>ayvazowa@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7932-0717</contrib-id><contrib-id contrib-id-type="spin">4130-4819</contrib-id><name-alternatives><name xml:lang="en"><surname>Zhuravleva</surname><given-names>Ekaterina A.</given-names></name><name xml:lang="ru"><surname>Журавлева</surname><given-names>Екатерина Александровна</given-names></name><name xml:lang="zh"><surname>Zhuravleva</surname><given-names>Ekaterina A.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Biology), Associate Professor</p></bio><bio xml:lang="ru"><p>канд. биол. наук, доцент</p></bio><bio xml:lang="zh"><p>Cand. Sci. (Biology), Associate Professor</p></bio><email>zhuravleva.ek20@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">North State Medical University</institution></aff><aff><institution xml:lang="ru">Северный государственный медицинский университет</institution></aff><aff><institution xml:lang="zh">North State Medical University</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2026-06-25" publication-format="electronic"><day>25</day><month>06</month><year>2026</year></pub-date><volume>33</volume><issue>6</issue><issue-title xml:lang="ru"/><history><date date-type="received" iso-8601-date="2026-02-24"><day>24</day><month>02</month><year>2026</year></date><date date-type="accepted" iso-8601-date="2026-05-11"><day>11</day><month>05</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; , Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; , Эко-Вектор</copyright-statement><copyright-statement xml:lang="zh">Copyright ©; , Eco-Vector</copyright-statement><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</copyright-holder><copyright-holder xml:lang="zh">Eco-Vector</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc-nd/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://hum-ecol.ru/1728-0869/article/view/703282">https://hum-ecol.ru/1728-0869/article/view/703282</self-uri><abstract xml:lang="en"><p><bold>Background.</bold> Acid-base balance (pH) is one of the key parameters of the body's internal environment. This indicator changes most dynamically in the gastrointestinal tract, where sharp fluctuations in acidity are not a random process, but a finely regulated and vital mechanism. Each section of the gastrointestinal tract functions within a strictly defined pH range, which ensures efficient digestion of food, destruction of pathogenic microorganisms, and absorption of nutrients. Another important function of the gastrointestinal tract is the binding of heavy metal ions from food and water. To address this issue, new, highly effective sorbents are being developed. A promising source for their creation is raw materials of animal origin, in particular, the horns of cattle and reindeer. The materials obtained from them demonstrate high sorption activity with respect to toxic ions, which opens up possibilities for their use both in a new generation of enterosorbents for detoxification and in environmental purification systems.</p> <p><bold>Purpose of the Study</bold>. The purpose of this study is to investigate the influence of temperature and acidity on the sorption capacity of reindeer antler tissue.</p> <p><bold>Methods.</bold> The objects of study were biopolymer samples (reindeer antler tissue). Direct potentiometry and IR spectroscopy were used in the study.</p> <p><bold>Results.</bold> According to the studies, the sorption activity of reindeer antler bone tissue depends on temperature and environmental acidity. Specifically, with increasing pH, a decrease in the adsorption of Zn²⁺ ions is observed, while the adsorption of Pb²⁺ ions, conversely, increases. It was also noted that the acidity of the medium has a positive effect on the binding capacity coefficients of both metals (Kf). In turn, an increase in temperature leads to a decrease in the sorption capacity constants for Pb²⁺ and Zn²⁺ ions.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Обоснование. </bold>Кислотно-щелочное равновесие (рН) — один из ключевых параметров внутренней среды организма. Наиболее динамично этот показатель меняется в желудочно-кишечном тракте, где резкие колебания кислотности представляют собой не случайный процесс, а тонко регулируемый и жизненно важный механизм. Каждый отдел желудочно-кишечного тракта функционирует в строго заданном диапазоне рН, что обеспечивает эффективное переваривание пищи, уничтожение патогенных микроорганизмов и всасывание питательных веществ. Важной функцией желудочно-кишечного тракта является также связывание ионов тяжелых металлов, поступающих с пищей и водой. Для решения этой задачи ведутся разработки новых высокоэффективных сорбентов. Перспективным источником для их создания служит сырье животного происхождения, в частности, рога крупного рогатого скота и северного оленя. Получаемые из них материалы демонстрируют высокую сорбционную активность в отношении токсичных ионов, что открывает возможности для их применения как в новом поколении энтеросорбентов для детоксикации, так и в системах очистки окружающей среды.</p> <p><bold>Цель исследования.</bold> Целью данного исследования является изучение влияния температурного режима и уровня рН на сорбционную способность ткани рогов северного оленя.</p> <p><bold>Методы. </bold>Объектами исследования выбраны образцы биополимеров (ткань рогов северного оленя). При проведении исследования использован метод прямой потенциометрии..</p> <p><bold>Результаты.</bold> Согласно проведенным исследованиям, сорбционная активность костной ткани рогов северного оленя зависит от температуры и рН среды. <bold>В частности, </bold>при повышении pH наблюдается снижение адсорбции ионов Zn²⁺, <bold>в то время как </bold><bold>а</bold>дсорбция ионов Pb²⁺, <bold>напротив,</bold> увеличивается. <bold>Параллельно</bold> было отмечено, что рН среды положительно влияет на коэффициенты связывающей способности обоих металлов (Kf). <bold>В свою очередь,</bold> рост температуры приводит к снижению констант сорбционной емкости для ионов Pb²⁺ и Zn²⁺.</p></trans-abstract><trans-abstract xml:lang="zh"><p/></trans-abstract><kwd-group xml:lang="en"><kwd>reindeer antlers, sorption capacity, heavy metals, enterosorbents, pH, sorption capacity</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>рога северных оленей, сорбционная способность, тяжелые металлы, энтеросорбенты, кислотность среды, сорбционная емкость</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This study was supported by grant No. 25-25-20181 from the Russian Science Foundation, https://rscf.ru/project/25-25-20181</funding-statement><funding-statement xml:lang="ru">Исследование выполнено за счет гранта Российского научного фонда №25-25-20181, https://rscf.ru/project/25-25-20181</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>1.	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