4-AMINO-5-(2-AMINOPHENYL)-2,4-DIHYDRO-3N-1,2,4-TRIAZOLO-3-THIONIC REAGENT ELECTROCHEMICAL PROPERTIES AND APPLICATIONS IN LEAD(II) ION DETECTION
In the article, electrochemical changes in 4-amino-5-(2-aminophenyl)-2,4-dihydro-3N-1,2,4-triazolo-3-thione were studied by
amperometric, chronoamperometric, cyclovoltammetric methods. The standard redox potential of the reagent on the surface of a
platinum electrode was found and the factors influencing it were studied. The possibility of using 4-amino-5-(2-aminophenyl)-
2,4-dihydro-3N-1,2,4-triazolo-3-thione as an analytical reagent for the lead ion is shown. The possibilities of lead complexation
with the reagent 4-Amino-5-(2-aminophenyl)-2,4-dihydro-3H-1,2,4-triazolo-3-thione are presented.
1. Kun Liu., Zhiyang Tang., Ran Zhou., Wen Zhang., Qingzhou Li., Chenwei Zhu., Chao He., Ke Liu., and Xiangyou Li.
Determination of lead in aqueous solutions using resonant surface-enhanced LIBS. Journ. of analytical atomic spectrometry. 2021.
2. Mohammad Reza Jalali Sarvestani, Tayyebeh Madrakian, Abbas Afkhami. Ultra-trace levels voltammetric determination
of Pb2+ in the presence of Bi3+ at food samples by a Fe3O4@Schiff base Network1 modified glassy carbon electrode.
Talanta 2022, 250.
3. Souza J. P., Cerveira C., Pereira J. S. Evaluation of sample preparation methods for cereal digestion for subsequent As, Cd,
Hg, and Pb determination by AAS-based techniques. Journ. Food Chemistry 321 (2020) 126715.
4. M.S. Di Nezio, M. E. Palomeque, and B.S. Fernandez Band, "A Sensitive Spectrophotometric Method for Lead
Determination by Flow Injection Analysis with On-Line Preconcentration," Talanta 63 (2), 405–409 (2004).
5. Ying Li, Huan Huang, Rongli Cui, Dongmei Wang, Zi Yin, Dan Wang, Lirong Zheng, Jing Zhang, Yidong Zhao, Hui
Yuan, Jinquan Dong, Xihong Guo, Baoyun Sun. Electrochemical sensor based on graphdiyne is effectively used to
determine Cd2+ and Pb2+ in water. Sensors and Actuators B: Chemical 2021, 332 ,
129519. https://doi.org/10.1016/j.snb.2021.129519
6. Ying Li, Rongli Cui, Huan Huang, Jinquan Dong, Bing Liu, Dangui Zhao, Jiahao Wang, Dan Wang, Hui Yuan, Xihong
Guo, Baoyun Sun. High performance determination of Pb2+ in water by 2,4-dithiobiuret-Reduced graphene oxide
composite with wide linear range and low detection limit. Analytica Chimica Acta 2020, 1125 , 76-
7. Andrey G. Melnikov, Denis A. Bykov, Alexey S. Varezhnikov, Victor V. Sysoev, Gennady V. Melnikov. Toward a
Selective Analysis of Heavy Metal Salts in Aqueous Media with a Fluorescent Probe Array. Sensors 2022, 22 (4)
1465. https://doi.org/10.3390/s22041465
8. Yiseul Yu, Shreyanka Shankar Naik, Yewon Oh, Jayaraman Theerthagiri, Seung Jun Lee, Myong Yong Choi. Lignin-
mediated green synthesis of functionalized gold nanoparticles via pulsed laser technique for selective colorimetric detection
of lead ions in aqueous media. Journal of Hazardous Materials 2021, 420 , 126585. https://doi.org/10.1016/j.
jhazmat.2021.126585
9. Laylo, Sagdullaeva and Nigora, Qutlimurotova and Dilnoza, Ismailova and Kuronboyev, Davron and Elyor, Berdimurodov.
New and Effective Analytical Reagent of 5-(4-Aminophenyl)-1,3,4-Oxadiazole-2-thiol in The Determination of Copper
and Lead. -2022. – Vol. 14. – Iss. 12. –p. 1093-1113.
10. Xie W.Q., Gong Y.X., Yu K.X. A simple and rapid method for the determination of lead dioxide in minimum by headspace
gas chromatographic technique. Journal of Chromatography A. 2020 Volume 1617, R. 1968-1974.
11. Lurye Yu.Yu. (2012). Spravochnik po analiticheskoy ximii. M.: Kniga po Treb. S. 440.
12. Geyrovskiy Ya., Kuta Ya. , (1965). Osnovы polyarografii. M.1965. 499 s
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