引用本文:
杨建男, 邵明升, 张燕华. FIA-安培法测定水中的Cr(Ⅲ)和Cr(Ⅵ)[J]. 应用化学,
1993, 10(5): 89-91.
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.
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.
FIA-安培法测定水中的Cr(Ⅲ)和Cr(Ⅵ)
English
FLOW-INJECTION AMPEROMETRIC DETERMINATION OF CHROMIUM(Ⅲ) AND CHROMIUM(Ⅵ) IN WATER
Abstract:
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.
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Key words:
- chromium ion
- / determination
- / FIA-amperometry
- / water
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