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《Chinese Journal of Analytieal Chemistry》 1994-05
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Preconcentration of Trace Vanadium in Water With Activated Carbon and Its Determination by Oscillopolarography

Luo Yongyi , Zhang Kerong, Li Chongfu, Si Yikang (School of Public Health, West China University of Medical Sciences, Chengdu 610041)  
The adsorption and desorption behavior of vanadium on activated carbon was studied. Trace vanadium in water could be adsorbed on activated carbon at pH 3-4, then elut-ed with 0.5 mol/L sodium hydroxide and determined by oscillopolarography. The content of vanadium could be concentrated by 100 times. The relative standard deviation of 7 parallel determinations was 3.5%-12. 8%. The proposed method has been applied to the determination of trace vanadium in natural waters with the recovery of 87.4%-100.3%, and with the detection limit of 0. 05μg/L
【CateGory Index】: O657.14
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