ICP-AES Method for Constant Elements in AlVSnCuFe Intermediate Alloy for Titanium Alloys
Under the optimal instrument parameters,the inductively coupled plasma atomic emission spectrometry(ICP-AES)was used to optimize the experimental conditions by studying the types of dissolved acids,sample size and constant volume,analytical spectral lines,short-term stability,coexisting element interference,standard solutions for working curves,etc.,and an ICP-AES method for constant elements in AlVSnCuFe intermediate alloy for titanium alloys was established.This method is suitable for the determination of constant elements in intermediate alloy,and has the characteristics of good test accuracy,high efficiency,and good stability.The testing range for Al and V elements is 10.00%to 50.00%,the testing range for Fe and Cu elements is 2.00%to 10.00%,and the testing range for Sn element is 4.00%to 20.00%.The spiked recovery rate is 97.5%to 103.2%,and the precision RSD is not more than 2.5%.This method effectively solves the problem of detecting constant elements in AlVSnCuFe intermediate alloy.
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