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Citation: Yang Jiannan, Shao Mingsheng, Zhang Yanhua. FLOW-INJECTION AMPEROMETRIC DETERMINATION OF CHROMIUM(Ⅲ) AND CHROMIUM(Ⅵ) IN WATER[J]. Chinese Journal of Applied Chemistry, ;1993, 10(5): 89-91. shu

FLOW-INJECTION AMPEROMETRIC DETERMINATION OF CHROMIUM(Ⅲ) AND CHROMIUM(Ⅵ) IN WATER

1.
Department of Chemistry, Liaoning University, 110036 Shenyang

Received Date: 28 October 1992
Available Online: 12 May 1993

A flow-injection amperometric method for the determination of Cr(Ⅲ) and (Ⅵ) in water is established,using a carbon tube flow-through detector. The method is simple,rapid and of low cost.The effects of interfering ions are eliminated with a line-on separation column with strong acid-cation resin. Detection limit under optimized conditions was 0.2ng/mL for Cr (Ⅵ). The determination resuits of trace Cr (Ⅲ) and (Ⅵ) in water were in accordance with those obtained by atomic absorption spectrophotometry in graphite tube furnace.
- chromium ion,
- determination,
- FIA-amperometry,
- water
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