This paper optimized the conditions of flow injection spectrophotometric determination of trace iron(Ⅲ)by using of orthogonal design.The linear range,determination limit and sampling rate is 201200μg/L,2mg/L and 3...This paper optimized the conditions of flow injection spectrophotometric determination of trace iron(Ⅲ)by using of orthogonal design.The linear range,determination limit and sampling rate is 201200μg/L,2mg/L and 30/h,respectively.Fe(Ⅱ)is oxidized to Fe(Ⅲ) by using of H2O2 and used for the determination of total iron.The method has been applied to the determination of iron in a synthesized sample and a thermal power plant water with satisfactory results.展开更多
文摘This paper optimized the conditions of flow injection spectrophotometric determination of trace iron(Ⅲ)by using of orthogonal design.The linear range,determination limit and sampling rate is 201200μg/L,2mg/L and 30/h,respectively.Fe(Ⅱ)is oxidized to Fe(Ⅲ) by using of H2O2 and used for the determination of total iron.The method has been applied to the determination of iron in a synthesized sample and a thermal power plant water with satisfactory results.