ANALYTICAL APPLICATION OF DEVELOPED INVERSION VOLTAMPEROMETRIC METHODS
Authors
Asrorova Zukhra, Yakhshieva Zukhra Ziyatovna
Share
Annotation
This article presents the results of food product analysis, specifically focusing on meat products, which are essential to human life. Selective, rapid, and accurate inversion voltammetric methods have been developed for the determination of zinc in meat. The obtained results are presented and compared, showing that at a confidence level of t₀.₉₅, no statistically significant discrepancies were found in comparison with control and certified values of the determined metal. In all cases, the relative standard deviation (Sr) did not exceed 0.33, and the total time required for the simultaneous determination of all components in the analyzed sample—without extraction-based separation or the use of additional procedures—was no more than 30–40 minutes. To obtain more complete information on the metrological characteristics of the proposed methods, the lower detection limit for zinc(II) was established at 0.001 μg in 10.0 mL of the analyzed solution
Keywords
Authors
Asrorova Zukhra, Yakhshieva Zukhra Ziyatovna
Share
References:
1. Gevorgyan A.M., Talipov Sh.T., Khadeev V.A., Mukhamedzhanova D.V. Volt-amperometric behavior of sodium diethyldithiocarbamate on a platinum anode in a dimethylformamide medium// Zhurn. anal. chemistry. 1980. Vol. 35. No. 10. Pp. 2026 – 2028. (In English)
2. Lurye Yu.Yu. Handbook of analytical chemistry.-M.: Chemistry. 1979. Pp. 230-236 (In English)
3. Fisher R.A. Statistical methods for researchers involved in the determination of noble elements. M.; Mir. 1988. 287 p. (In English)
4. Gevorgyan A.M., Yakhshieva Z.Z., Kireev G.V. Complexometric amperometry in determining noble metals in environmental objects. Abstract of the report of the Rep. scientific-practical conf. "Kimyoning dolzarb muammolari" Samarkand. 2009. Pp. 65-66. (In English)
5. Gevorgyan AM, Talipov Sh. T., Khadeev VA, Mirzoyan I.I. Voltammetric curves of thionalide oxidation on a platinum microanode in glacial acetic acid.// Deposited in VINITI No. 4616-81 from 24.09.81. Pp. 1 – 3. (In English)
6. A.M. Gevorgyan, Z.Z. Yakhshieva, L.K. Zhuraeva, G.U. Rakhimberdieva. Determination of the number of electrons given up during the electrooxidation of one thiourea molecule. // Republican scientific and practical conference with international participation "Green Chemistry" - in the interests of sustainable development. Samarkand. -2012. (In English)
7. Yakhshieva Z The conditions for amperometric titration of the Ag (I) ion with sulfur-containing reagents. // Universia Chemistry and Biology. Electronic scientific journal. - 2016. No. 4 (22). (In English)
Other articles of the issue
