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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">zldm</journal-id><journal-title-group><journal-title xml:lang="ru">Заводская лаборатория. Диагностика материалов</journal-title><trans-title-group xml:lang="en"><trans-title>Industrial laboratory. Diagnostics of materials</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1028-6861</issn><issn pub-type="epub">2588-0187</issn><publisher><publisher-name>ООО «Издательство «ТЕСТ-ЗЛ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26896/1028-6861-2021-87-3-20-23</article-id><article-id custom-type="elpub" pub-id-type="custom">zldm-1381</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>АНАЛИЗ ВЕЩЕСТВА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SUBSTANCES ANALYSIS</subject></subj-group></article-categories><title-group><article-title>Определение левамизола с использованием ионоселективного электрода</article-title><trans-title-group xml:lang="en"><trans-title>Determination of levamisole using ion-selective electrode</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>Зубеня</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zubenia</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Наталия Владимировна Зубеня</p><p>33000, г. Ровно, ул. Николая Карнаухова, д. 53</p></bio><bio xml:lang="en"><p>Natalia V. Zubenia</p><p>53, Mykoly Karnaukhova St., Rivne, 33000</p></bio><email xlink:type="simple">natalizubenia@gmail.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>Кормош</surname><given-names>Ж. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kormosh</surname><given-names>Z. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Жолт Александрович Кормош</p><p>43025, г. Луцк, проспект Воли, д. 13</p></bio><bio xml:lang="en"><p>Zholt A. Kormosh</p><p>13, Voli av., Lutsk, 43025</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>Хмеляр</surname><given-names>И. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Khmeliar</surname><given-names>I. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Инеса Макаровна Хмеляр</p><p>33000, г. Ровно, ул. Николая Карнаухова, д. 53</p></bio><bio xml:lang="en"><p>Inesa M. Khmeliar</p><p>53, Mykoly Karnaukhova St., Rivne, 33000</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>Садовник</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sadovnyk</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ольга Владимировна Садовник</p><p>33000, г. Ровно, ул. Николая Карнаухова, д. 53</p></bio><bio xml:lang="en"><p>Olga V. Sadovnyk</p><p>53, Mykoly Karnaukhova St., Rivne, 33000</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Ровенская медицинская академия</institution><country>Украина</country></aff><aff xml:lang="en"><institution>Rivne Medical Academy</institution><country>Ukraine</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Восточноевропейский национальный университет имени Леси Украинки</institution><country>Украина</country></aff><aff xml:lang="en"><institution>Eastern European National University</institution><country>Ukraine</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>20</day><month>03</month><year>2021</year></pub-date><volume>87</volume><issue>3</issue><fpage>20</fpage><lpage>23</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Зубеня Н.В., Кормош Ж.А., Хмеляр И.М., Садовник О.В., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Зубеня Н.В., Кормош Ж.А., Хмеляр И.М., Садовник О.В.</copyright-holder><copyright-holder xml:lang="en">Zubenia N.V., Kormosh Z.A., Khmeliar I.M., Sadovnyk 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.zldm.ru/jour/article/view/1381">https://www.zldm.ru/jour/article/view/1381</self-uri><abstract><p>Разработан левамизол-селективный электрод с пластифицированной поливинилхлоридной мембраной на основе ионного ассоциата левамизола с бромфеноловым синим. Для моделирования состава мембраны как матрицу использовали ПВХ; в качестве пластификатора исследовали дибутилфталат (ДБФ), диэтилфталат (ДЭФ), диоктилфталат (ДОФ), динонилфталат (ДНФ), дибутилсебацинат (ДБС), трикрезилфосфат (ТКФ). Установлено, что природа пластификатора незначительно влияет на аналитические характеристики электрода. Отклик линеен в диапазоне концентраций 1 · 10–5 – 1 · 10–1 моль/л с крутизной электродной функции 52,1 ± 1,0 мВ/pC. Время отклика электрода составляет 10 с, его можно использовать не менее 8 недель, причем для мембран с большим содержанием пластификатора срок службы электрода дольше. Рабочий диапазон pH 3,0 – 8,0. Были определены потенциометрические коэффициенты селективности электрода по отношению к ряду потенциально мешающих ионов. Разработанный электрод апробирован при определении левамизола в модельных растворах и фармацевтических препаратах («Декарис (Decaris)» и «Левамизол-Здоровье»).</p></abstract><trans-abstract xml:lang="en"><p>Current development of applied ionometry requires focusing of theoretical studies both on revealing the nature of the selectivity of electrode membranes and on the developing the new methods of membrane synthesis and their modification with the goal of obtaining more perfect structural units with improved functional properties. Elucidation of the relationship between the structural characteristics of the membranes and their effect on the electro-analytical properties is a rather important task. The interaction of organic cation levamisole with bromophenol blue was studied to meet the goals. Levamisole-selective sensor with a plasticized polyvinyl chloride (PVC) membrane has been developed. The electrode contains an ionic associate of levamisole with bromophenol blue. PVC was used as a matrix to model the membrane composition. Membranes plasticized with dibutyl phthalate (DBP), diethyl phthalate (DEP), dioctyl phthalate (DOP), dinonyl phthalate (DNP), dibutyl sebacate (DBP), tricresyl phosphate (TCP) were studied. It was shown that the nature of the plasticizer insignificantly affected the analytical characteristics of the electrode. The response is linear within the concentration range of 1 × 10–5 – 1 ×10–1 mole/liter with the slope of the electrode function 52.1 ± 1.0 mV/pC. The sensor has a quick response (10 sec) and can be used for at least 8 weeks without any divergence in the long run. The operation life of the membranes with a high plasticizer content is much longer. The electrode can be used within pH range of 3.0 – 8.0. Potentiometric selectivity coefficients of the electrode relative to a number of potentially interfering ions were determined. The developed electrode was tested in determination of levamisole in model solutions and pharmaceuticals («Decaris» and «Levamisole-Zdorovye»).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>левамизол-селективный электрод</kwd><kwd>потенциометрия</kwd><kwd>определение левамизола</kwd></kwd-group><kwd-group xml:lang="en"><kwd>levamisole-selective sensor</kwd><kwd>potentiometry</kwd><kwd>levamisole determination</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">Mashkovsky M. D. Medicines. — Moscow: Meditsina, 1986. — 624 p. [in Russian].</mixed-citation><mixed-citation xml:lang="en">Mashkovsky M. D. Medicines. — Moscow: Meditsina, 1986. — 624 p. [in Russian].</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Farber H. A. Clinical use of levamisole perspectives and warnings / Terap. Arkh. 1980. N I. P. 95 – 100 [in Russian].</mixed-citation><mixed-citation xml:lang="en">Farber H. A. Clinical use of levamisole perspectives and warnings / Terap. Arkh. 1980. N I. P. 95 – 100 [in Russian].</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Kovalev I. E. Levamisole as an immunostimulant / Khim.-Farm. Zh. 1980. N 4. P. 115 – 121 [in Russian].</mixed-citation><mixed-citation xml:lang="en">Kovalev I. E. Levamisole as an immunostimulant / Khim.-Farm. Zh. 1980. N 4. P. 115 – 121 [in Russian].</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Adams J. G. Pharmacokinetics of levamisole / J. Rheumatol. 1978. Vol. 5. P. 137 – 142.</mixed-citation><mixed-citation xml:lang="en">Adams J. G. Pharmacokinetics of levamisole / J. Rheumatol. 1978. Vol. 5. P. 137 – 142.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">International Pharmacopoeia. Vol. 2. Specifications for quality control of pharmaceuticals. — Geneva: World Health Organization, 1983. — 364 p. [in Russian].</mixed-citation><mixed-citation xml:lang="en">International Pharmacopoeia. Vol. 2. Specifications for quality control of pharmaceuticals. — Geneva: World Health Organization, 1983. — 364 p. [in Russian].</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Woestenborghs R., Michielsen L., Heykants J. Determination of levamisole in plasma and animal tissues by gas chromatography with thermionic specific detection / J. Chromatogr. B. 1981. Vol. 224. P. 25 – 32. DOI: 10.1016/s0378-4347(00)80134-6</mixed-citation><mixed-citation xml:lang="en">Woestenborghs R., Michielsen L., Heykants J. Determination of levamisole in plasma and animal tissues by gas chromatography with thermionic specific detection / J. Chromatogr. B. 1981. Vol. 224. P. 25 – 32. DOI: 10.1016/s0378-4347(00)80134-6</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Kouassi E., Caille G., Lery L., et al. Novel assay and pharmacokinetics of levamisole and p-hydroxylevamisole in human plasma and urine / Biopharm. Drug Dispos. 1986. Vol. 7. N 1. P. 71 – 89. DOI: 10.1002/bdd.2510070110</mixed-citation><mixed-citation xml:lang="en">Kouassi E., Caille G., Lery L., et al. Novel assay and pharmacokinetics of levamisole and p-hydroxylevamisole in human plasma and urine / Biopharm. Drug Dispos. 1986. Vol. 7. N 1. P. 71 – 89. DOI: 10.1002/bdd.2510070110</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Jing X., Kai S., Wei-Feng D. Determination of levamisole residue in animal livers by two liquid liquid extraction steps-gas chromatography-mass spectrometry / Chin. J. Chromatogr. 2012. Vol. 30. N 9. P. 922 – 925. DOI: 10.3724/SP.J.1123.2012.04030</mixed-citation><mixed-citation xml:lang="en">Jing X., Kai S., Wei-Feng D. Determination of levamisole residue in animal livers by two liquid liquid extraction steps-gas chromatography-mass spectrometry / Chin. J. Chromatogr. 2012. Vol. 30. N 9. P. 922 – 925. DOI: 10.3724/SP.J.1123.2012.04030</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">De Baere S., Cherlet M., Croubles S., et al. Liquid Chromatographic determination of levamisole in animal plasma: ultraviolet versus tandem mass specrometric detection / Anal. Chim. Acta. 2003. Vol. 483. P. 215 – 224. DOI: 10.1016/S0003-2670(02)01377-6</mixed-citation><mixed-citation xml:lang="en">De Baere S., Cherlet M., Croubles S., et al. Liquid Chromatographic determination of levamisole in animal plasma: ultraviolet versus tandem mass specrometric detection / Anal. Chim. Acta. 2003. Vol. 483. P. 215 – 224. DOI: 10.1016/S0003-2670(02)01377-6</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Jedziniak P., Szprengier-Juszkiewicz T., Olejnik M. Determination of benzimidazoles and levamisole residues in milk by liquid chromatography — mass spectrometry: Screening method development and validation / J. Chromatogr. A. 2009. Vol. 1216. N 46. P. 8165 – 8172. DOI: 10.1016/j.chroma.2009.07.036</mixed-citation><mixed-citation xml:lang="en">Jedziniak P., Szprengier-Juszkiewicz T., Olejnik M. Determination of benzimidazoles and levamisole residues in milk by liquid chromatography — mass spectrometry: Screening method development and validation / J. Chromatogr. A. 2009. Vol. 1216. N 46. P. 8165 – 8172. DOI: 10.1016/j.chroma.2009.07.036</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Tong L., Ding L., Li Y., et al. A sensitive LC — MS/MS method for determination of levamisole in human plasma: Application to pharmacokinetic study / J. Chromatogr. B. 2011. Vol. 879. N 5 – 6. P. 299 – 303. DOI: 10.1016/j.jchromb.2010.11.015</mixed-citation><mixed-citation xml:lang="en">Tong L., Ding L., Li Y., et al. A sensitive LC — MS/MS method for determination of levamisole in human plasma: Application to pharmacokinetic study / J. Chromatogr. B. 2011. Vol. 879. N 5 – 6. P. 299 – 303. DOI: 10.1016/j.jchromb.2010.11.015</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Cherlet M., De Baere S., Croubels S., De Backer P. Quantitative analysis of levamisole in porcine tissues by high-performance liquid chromatography combined with atmospheric pressure chemical ionization mass spectrometry / J. Chromatogr. B. 2000. Vol. 742. N 2. P. 283 – 293. DOI: 10.1016/S0378-4347(00)00171-7</mixed-citation><mixed-citation xml:lang="en">Cherlet M., De Baere S., Croubels S., De Backer P. Quantitative analysis of levamisole in porcine tissues by high-performance liquid chromatography combined with atmospheric pressure chemical ionization mass spectrometry / J. Chromatogr. B. 2000. Vol. 742. N 2. P. 283 – 293. DOI: 10.1016/S0378-4347(00)00171-7</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Alvinerie M., Galtier P., Escoular G. Ion-pair high-performance liquid chromatographic assay of levamisole in biological fluids / J. Chromatogr. B. 1981. Vol. 223. P. 445 – 448. DOI: 10.1016/s0378-4347(00)80120-6</mixed-citation><mixed-citation xml:lang="en">Alvinerie M., Galtier P., Escoular G. Ion-pair high-performance liquid chromatographic assay of levamisole in biological fluids / J. Chromatogr. B. 1981. Vol. 223. P. 445 – 448. DOI: 10.1016/s0378-4347(00)80120-6</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">El-Kholy H., Kemppamen B. W. Liquid chromatographic method with ultraviolet absorbance detection for measurement of levamisole in chicken tissues, eggs and plasma / J. Chromatogr. B. 2003. Vol. 796. P. 371 – 377. DOI: 10.1016/j.jchromb.2003.08.025</mixed-citation><mixed-citation xml:lang="en">El-Kholy H., Kemppamen B. W. Liquid chromatographic method with ultraviolet absorbance detection for measurement of levamisole in chicken tissues, eggs and plasma / J. Chromatogr. B. 2003. Vol. 796. P. 371 – 377. DOI: 10.1016/j.jchromb.2003.08.025</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Vandamme Th. F., Demoustier M., Rollmann B. Quantitation of levamisole in plasma using high performance liquid chromatography / Eur. J. Drug Metab. Pharmacokinet. 1995. Vol. 20. N 2. P. 145 – 149. DOI: 10.1007/BF03226369</mixed-citation><mixed-citation xml:lang="en">Vandamme Th. F., Demoustier M., Rollmann B. Quantitation of levamisole in plasma using high performance liquid chromatography / Eur. J. Drug Metab. Pharmacokinet. 1995. Vol. 20. N 2. P. 145 – 149. DOI: 10.1007/BF03226369</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Sowjanya S., Devadasu Ch. Development of RP-HPLC Method for the Simultaneous Quantitation of Levamisole and Albendazole: Application to Assay Validation / Int. J. Anal. Chem. 2018. Vol. 2018:5746305. DOI: 10.1155/2018/5746305</mixed-citation><mixed-citation xml:lang="en">Sowjanya S., Devadasu Ch. Development of RP-HPLC Method for the Simultaneous Quantitation of Levamisole and Albendazole: Application to Assay Validation / Int. J. Anal. Chem. 2018. Vol. 2018:5746305. DOI: 10.1155/2018/5746305</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Marriner S., Galbraith E. A., Bogan J. A. Determination of the anthelmintic levamisole in plasma and gastrointestinal fuids by high-performance liquid chromatography / Analyst. 1980. Vol. 105. N 1255. P. 993 – 996. DOI: 10.1039/AN9800500993</mixed-citation><mixed-citation xml:lang="en">Marriner S., Galbraith E. A., Bogan J. A. Determination of the anthelmintic levamisole in plasma and gastrointestinal fuids by high-performance liquid chromatography / Analyst. 1980. Vol. 105. N 1255. P. 993 – 996. DOI: 10.1039/AN9800500993</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Garcia J. J., Diez M. J., Sierra M., Teran M. T. Determination of Levamisole by HPLC in Plasma Samples in the Presence of Heparin and Pentobarbital / J. Liq. Chromatogr. 1990. Vol. 13. N 4. P. 743 – 749. DOI: 10.1080/01483919008051817</mixed-citation><mixed-citation xml:lang="en">Garcia J. J., Diez M. J., Sierra M., Teran M. T. Determination of Levamisole by HPLC in Plasma Samples in the Presence of Heparin and Pentobarbital / J. Liq. Chromatogr. 1990. Vol. 13. N 4. P. 743 – 749. DOI: 10.1080/01483919008051817</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Holbrook A., Scales B. Polarographic determination of tetramisole hydrochloride in extracts of animal tissue / Anal. Biochem. 1967. Vol. 18. P. 46 – 53. DOI: 10.1016/0003- 2697(67)90054-1</mixed-citation><mixed-citation xml:lang="en">Holbrook A., Scales B. Polarographic determination of tetramisole hydrochloride in extracts of animal tissue / Anal. Biochem. 1967. Vol. 18. P. 46 – 53. DOI: 10.1016/0003- 2697(67)90054-1</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Calatayud J. M., Falco C. Determination of levamisole hydrochloride with by a turbidimetric method and flow-injection analysis / Talanta. 1986. Vol. 33. N 8. P. 685 – 687. DOI: 10.1016/0039-9140(86)80158-8</mixed-citation><mixed-citation xml:lang="en">Calatayud J. M., Falco C. Determination of levamisole hydrochloride with by a turbidimetric method and flow-injection analysis / Talanta. 1986. Vol. 33. N 8. P. 685 – 687. DOI: 10.1016/0039-9140(86)80158-8</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Sadeghi S., Fathi F., Abbasivar J. Potentiometric sensing of levamisole hydrochloride based on moleculary imprinted polymer / Sens. Actuat. B. 2007. Vol. 122. N 1. P. 158 – 164. DOI: 10.1016/j.snb.2006.05.018</mixed-citation><mixed-citation xml:lang="en">Sadeghi S., Fathi F., Abbasivar J. Potentiometric sensing of levamisole hydrochloride based on moleculary imprinted polymer / Sens. Actuat. B. 2007. Vol. 122. N 1. P. 158 – 164. DOI: 10.1016/j.snb.2006.05.018</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Kamman K. Working with ion-selective electrodes. — Moscow: Mir, 1972. — 283 p. [Russian translation].</mixed-citation><mixed-citation xml:lang="en">Kamman K. Working with ion-selective electrodes. — Moscow: Mir, 1972. — 283 p. [Russian translation].</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Morf W. E. The Principles of Ion-Selective Electrodes and of Membrane Transport. — Moscow: Mir, 1985. — 280 p. [Russian translation].</mixed-citation><mixed-citation xml:lang="en">Morf W. E. The Principles of Ion-Selective Electrodes and of Membrane Transport. — Moscow: Mir, 1985. — 280 p. [Russian translation].</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Zubenya N., Kormosh Zh. Potentiometric membrane sensor for levamisole determination / Mediterr. J. Chem. 2017. Vol. 6. N 2. P. 7 – 14. DOI: 10.13171/mjc61/016111516/kormosh</mixed-citation><mixed-citation xml:lang="en">Zubenya N., Kormosh Zh. Potentiometric membrane sensor for levamisole determination / Mediterr. J. Chem. 2017. Vol. 6. N 2. P. 7 – 14. DOI: 10.13171/mjc61/016111516/kormosh</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>
