摘要
建立了一种用电感耦合等离子体原子发射光谱(ICP-AES)法测定磷酸中金属元素的分析方法。磷酸用超纯水稀释10倍后直接测定,方法的检出限可达到0.001 2~0.051 6μg/g,加标回收率达到95%~105%,满足实际样品分析要求。
Inductively coupled plasma atomic emission spectrometry(ICP-AES)was used to establish a method for the determination of metal elements in the phosphoric acid.The experimental results indicated that the sample was determined directly after it was diluted 10 times by ultrapure water,and the detection limits of this method could reach 0.001 2—0.051 6μg/g with the recoveries between 95%—105%,which met the requirements of real sample analysis.
引文
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