Dissolution with HNO3-HF/ICP-OES for an analysis of Ag-In-Sn alloys and others by using the sequential correction method

Tin alloys have generally been dissolved in HNO3-HCl-tartaric acid and measured by inductively coupled plasma-optical emission spectrometry (ICP-OES). However, alloys containing Ag are precipitated as AgCl by dissolution with a mixed acid containing HCl. Therefore, as a method for not precipitating Ag and Sn it was performed by HNO3-HF dissolution. By using the dissolution method, Ag-In-Sn alloys could be measured by ICP-OES. Moreover, the dissolution method was applied to Cu-In-Sn alloys and Ag-In-Sb mixed samples. After measuring by ICP-OES, it was calculated by the sequential correction method, which involver correcting the fluctuations in the emission intensities, the impurities in standard reagents, any spectral interferences or non-spectral interferences, and the blank values.