[Determination of Ag, Cu, Zn and Cd in silver brazing filler metals by ICP-AES].
A method of simultaneous and direct determination for Ag, Cu, Zn and Cd in silver brazing filler metals by ICP-AES is reported. The spectral interferences and effect of acidity have been investigated. Working conditions were optimized. The method has been applied to the analysis of silver brazing filler metals with RSD of 4-7% and recovery of 94-105%. This method was accurate, simple and rapid.
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Analysis and Testing Centre of Xiangtan University, 411105 Xiangtan.