ICP-AES Determination of Mn,Fe,Ni,Mo and W in Co-Cr-Mo Alloys

An ICP-AES method for the determination of Mn,Fe,Ni,Mo and W in Co-Cr-Mo alloy was proposed. The sample was dissolved with HCl and HNO3. The wavelengths of 216.556,257.610,204.598,259.940 and 207.911 nm were selected as analytical lines for determination of Ni,Mn,Mo,Fe and W respectively. The proposed method was applied to the analysis of a standard sample C112X,giving values of recovery obtained by standard addition method in the range of 96.0%-105.0% and RSD′s (n=9) in the range of 1.1%-2.0%.