Interference correction method for the determination of multi-element in Pb-Ca alloy by ICP-AES

Spectral interferences and non-spectral interferences on the determination of fifteen elements (Sn, Ca, Al,Sb,As,Zn,Fe,Mn,Mg,Cr,Cd,Cu,Ag,Co,Ni) in Pb-Ca alloy by ICP-AES have been studied systematically, and correspond and mathematical carlibration method has been established. The analysis elements don't need to separate from the matrix nor need to match matrix by using this method,which can eliminate interferences from matrix and meet the demands of speed and accuracy in alloy production process control analysis. The analytical data for real samples were found to agree with those obtained by matrix matching method.