- 作者: Anupama Asthana, Ajai Pillai and V. K. Gupta
- 作者服務機構: School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur (C.G.) Pin - 492 010, India
- 中文摘要: The present method for determination of thallium involves the oxidation of Tl(I) to Tl(III), with bromine water and liberation of iodine by Tl(III) from potassium iodide in acidic medium. The liberated iodine is reacted with starch to form a blue coloured complex having l max 575 nm. The system obeys Beer’s law in the range of 1-10 mg per 25 mL. The molar absorptivity and Sandell’s sensitivity were found to be 1.98 ’ 105 l mol-1 cm-1 and 0.00098 mg cm-2, respectively. The method has been successfully applied for the determination of thallium in water, industrial effluent, flue dust and biological samples.
- 英文摘要: --
- 中文關鍵字: Thallium; Spectrophotometrically; Starch iodide; Environment.
- 英文關鍵字: Thallium; Spectrophotometrically; Starch iodide; Environment.