✦ LIBER ✦
A New Polarographic Adsorptive Catalytic Wave for the Determination of Trace Tellurium in Smog Dust and Wheat Flour
✍ Scribed by Zhou Xiangchun; Lu Guanghan; Wang Fang; Lan Yanhua
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 121 KB
- Volume
- 57
- Category
- Article
- ISSN
- 0026-265X
No coin nor oath required. For personal study only.
✦ Synopsis
Linear-sweep polarography of tellurium in sulfuric acid solution containing methylene blue produces a wave at 00.82 V (vs SCE). In a cathodic sweep, the derivative peak current is directly proportional to the concentration of tellurium over the range 4 1 10 09 to 1 1 10 07 g/ml, and the detection limit is 2 1 10 09 g/ml. The polarographic wave is an adsorptive catalytic hydrogen wave. This method has been applied to the determination of trace amounts of tellurium in smog dust and wheat flour, with satisfactory results.