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https://doi.org/10.5562/cca2434

Spectrophotometric Determination of Gallium(III) with 4-(2-Pyridylazo)-resorcinol and Nitron

Petya Vassileva Racheva ; Departament of Chemistry and Biochemistry, Medical University − Plovdiv, 15A Vassil Aprilov Blvd., 4002 Plovdiv, Bulgaria
Kirila Trifonova Stojnova ; Departament of General and Inorganic Chemistry, University of Plovdiv “Paisii Khilendarski”, 24 Tsar Assen Str., 4000 Plovdiv, Bulgaria
Vanya Dimitrova Lekova ; Departament of General and Inorganic Chemistry, University of Plovdiv “Paisii Khilendarski”, 24 Tsar Assen Str., 4000 Plovdiv, Bulgaria
Atanas Nikolov Dimitrov ; Departament of General and Inorganic Chemistry, University of Plovdiv “Paisii Khilendarski”, 24 Tsar Assen Str., 4000 Plovdiv, Bulgaria

Puni tekst: engleski, pdf (270 KB) str. 159-163 preuzimanja: 737* citiraj
APA 6th Edition
Vassileva Racheva, P., Trifonova Stojnova, K., Dimitrova Lekova, V. i Nikolov Dimitrov, A. (2015). Spectrophotometric Determination of Gallium(III) with 4-(2-Pyridylazo)-resorcinol and Nitron. Croatica Chemica Acta, 88 (2), 159-163. https://doi.org/10.5562/cca2434
MLA 8th Edition
Vassileva Racheva, Petya, et al. "Spectrophotometric Determination of Gallium(III) with 4-(2-Pyridylazo)-resorcinol and Nitron." Croatica Chemica Acta, vol. 88, br. 2, 2015, str. 159-163. https://doi.org/10.5562/cca2434. Citirano 06.04.2020.
Chicago 17th Edition
Vassileva Racheva, Petya, Kirila Trifonova Stojnova, Vanya Dimitrova Lekova i Atanas Nikolov Dimitrov. "Spectrophotometric Determination of Gallium(III) with 4-(2-Pyridylazo)-resorcinol and Nitron." Croatica Chemica Acta 88, br. 2 (2015): 159-163. https://doi.org/10.5562/cca2434
Harvard
Vassileva Racheva, P., et al. (2015). 'Spectrophotometric Determination of Gallium(III) with 4-(2-Pyridylazo)-resorcinol and Nitron', Croatica Chemica Acta, 88(2), str. 159-163. https://doi.org/10.5562/cca2434
Vancouver
Vassileva Racheva P, Trifonova Stojnova K, Dimitrova Lekova V, Nikolov Dimitrov A. Spectrophotometric Determination of Gallium(III) with 4-(2-Pyridylazo)-resorcinol and Nitron. Croatica Chemica Acta [Internet]. 2015 [pristupljeno 06.04.2020.];88(2):159-163. https://doi.org/10.5562/cca2434
IEEE
P. Vassileva Racheva, K. Trifonova Stojnova, V. Dimitrova Lekova i A. Nikolov Dimitrov, "Spectrophotometric Determination of Gallium(III) with 4-(2-Pyridylazo)-resorcinol and Nitron", Croatica Chemica Acta, vol.88, br. 2, str. 159-163, 2015. [Online]. https://doi.org/10.5562/cca2434

Sažetak
The formation and liquid-liquid extraction of ion-association complex between gallium(III) − 4-(2-pyridylazo)-resorcinol (PAR) – 1,4-diphenyl-3-(phenylamino)-1H-1,2,4-triazole (nitron, Nt), water and chloroform were studied. The optimum conditions for gallium(III) extraction as an ion-association complex, (NtH)+[Ga3+(PAR)2]-, were found: pH, concentration of the reagents and shaking time. The
following key constants were calculated: constant of extraction (logKex = 6.28 ± 0.07), constant of association (logβ = 4.98 ± 0.05), constant of distribution (logKD = 1.30 ± 0.02) and recovery factor (R / % = 95.17 ± 0.02). Beerʼs law is obeyed for Ga(III) concentration up to 0.8 μg cm-3 with apparent molar
absorptivity of (10.3 ± 0.4)×104 dm-3 mol-1 cm-1 at λmax = 510 nm. Some additional characteristics, such as limit of detection (LOD = 0.072 μg cm-3), limit of quantification (LOQ = 0.24 μg cm-3) and Sandellʼs sensitivity (SS = 0.000675 ng cm-2) were estimated as well.

Ključne riječi
gallium; ternary complex; solvent extraction; spectrophotometry; nitron

Hrčak ID: 141988

URI
https://hrcak.srce.hr/141988

Posjeta: 975 *