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Research on Flow Injection Analytical Method of Iron(III) in Water Environment

Zhang Xin-shen

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Abstract

A new method was proposed to determinate trace Iron(Ⅲ) in automatic flow injection analysis.Iron(Ⅲ)was determined with Iron(Ⅲ) and ammonium sulfate mixture as reagent.The effect of sulfuric acid concentration,lengthen of reaction coil and flow velocity were investigated.Under the optimum conditions,the detection limit and RSD of the method were 4.6 μg/L and 4.2% respectively.The method was applied to the analysis of Iron(Ⅲ)in water body with satisfactory results.

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What this paper is about

A new method was proposed to determinate trace Iron(Ⅲ) in automatic flow injection analysis.Iron(Ⅲ)was determined with Iron(Ⅲ) and ammonium sulfate mixture as reagent.The effect of sulfuric acid concentration,lengthen of reaction coil and flow velocity were investigated.Under the optimum conditions,the detection limit and RSD of the method were 4.6 μg/L and 4.2% respectively.The method was applied to the analysis of Iron(Ⅲ)in water body with satisfactory results.

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Available abstract

A new method was proposed to determinate trace Iron(Ⅲ) in automatic flow injection analysis.Iron(Ⅲ)was determined with Iron(Ⅲ) and ammonium sulfate mixture as reagent.The effect of sulfuric acid concentration,lengthen of reaction coil and flow velocity were investigated.Under the optimum conditions,the detection limit and RSD of the method were 4.6 μg/L and 4.2% respectively.The method was applied to the analysis of Iron(Ⅲ)in water body with satisfactory results.

Key concepts: Reagent, Sulfuric acid, Flow injection analysis, Chemistry, Detection limit, Flow (mathematics), Sulfate, Ammonium

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