火焰原子吸收测定水库中水体金属(Pb、Mg、Ca、Cu)含量

Determination of metal in the reservoir water by flame atomic absorption(Pb,Mg,Ca,Cu) contents

从饮用水到工业污水,水样中金属元素含量变化很大,为了准确快速简便检测水样中的金属元素必须选择合理的测试方法,而在不同含量范围,可以采用不同的方法进行测定。Ca、Mg常见元素可以用火焰原子吸收分光光度法直接测定,Cu、Pb在较高含量的水中也可以直接测定。本文采用火焰原子吸收分光光度计测定取自虹山湖、娄家坡水库水样中的金属Pb、Mg、Ca、Cu标准溶液的吸光度,得出金属Pb、Mg、Ca、Cu标准曲线,并进一步分析。

From drinking water to the industrial wastewater, changes of metal elements in water, in order to test themethod of metal elements accurate fast and convenient detection in water must be reasonable, and in the different rangeof content, we can use different methods or chemical treatment, Ca, Mg common elements can direct spectrophotometriedetermination by flame atomic absorption. Cu and Pb in higher content of water can be directly measured by [ 1 ]. In thispaper, the absorbance of metal Pb, Mg, Ca, Cu standard solution was determined by flame atomic absorption spectro-photometer. The standard curves of Cu, Mg, Ca and Pb were obtained. The Rainbow Lake, Lou Jia Po reservoir waterabsorbency were calculated for the two contents of Pb, Mg, Ca, Cu.