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2006•Journal of Xinyang Normal UniversityRequires access

Studies on the Spectrophotometric Determination of Vanadium with 2,5-di(2-phenol)-1,3,4-thiadiazole

Yuxia Zhang

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Abstract

The color reaction of 2,5-di(2-phenol)-1,3,4-thiadiazole with vanadium was studied.In the prescence of OB-2 and HAc-NaAc buffer solution(pH 4.6),2,5-di(2-phenol)-1,3,4-thiadiazole can react with vanadium(VO_2~+) to form a stable 1∶3 complex.The molar absorptivity is 6.80×10~4 L·mol~(-1)·cm~(-1) at 480 nm.Beer's law is obeyed in the range of 0.1～2.4 μg/mL.Trace amount of vanadium in tobacco leaf and coal sample have been determined by proposed method and the results obtained are satisfactory.

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What this paper is about

The color reaction of 2,5-di(2-phenol)-1,3,4-thiadiazole with vanadium was studied.In the prescence of OB-2 and HAc-NaAc buffer solution(pH 4.6),2,5-di(2-phenol)-1,3,4-thiadiazole can react with vanadium(VO_2~+) to form a stable 1∶3 complex.The molar absorptivity is 6.80×10~4 L·mol~(-1)·cm~(-1) at 480 nm.Beer's law is obeyed in the range of 0.1～2.4 μg/mL.Trace amount of vanadium in tobacco leaf and coal sample have been determined by proposed method and the results obtained are satisfactory.

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Available abstract

The color reaction of 2,5-di(2-phenol)-1,3,4-thiadiazole with vanadium was studied.In the prescence of OB-2 and HAc-NaAc buffer solution(pH 4.6),2,5-di(2-phenol)-1,3,4-thiadiazole can react with vanadium(VO_2~+) to form a stable 1∶3 complex.The molar absorptivity is 6.80×10~4 L·mol~(-1)·cm~(-1) at 480 nm.Beer's law is obeyed in the range of 0.1～2.4 μg/mL.Trace amount of vanadium in tobacco leaf and coal sample have been determined by proposed method and the results obtained are satisfactory.

Key concepts: Vanadium, Molar absorptivity, Phenol, Chemistry, Spectrophotometry, Color reaction, Nuclear chemistry, Buffer solution

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Studies on the Spectrophotometric Determination of Vanadium with 2,5-di(2-phenol)-1,3,4-thiadiazole — Research Paper | ScholarLens