Determination of zirconium in zirconium-nickel alloy powder by inductively coupled plasma atomic emission spectroscopy
A method for determining zirconium in zirconium-nickel alloy powder by inductively coupled plasma atomic emission spectroscopy was established.Zirconium-nickel alloy powder was dissolved in nitric-hydrofluoric acid,339.198 nm was used as the analytical spectral line of zirconium element,and the interference of nickel matrix was eliminated by matrix matching method.The mass fractions of zirconium had a good linear relationship with spectral emission intensity in the range of 0.1%-40%,the correlation coefficient was 0.999 7,the detection limit of the method was 0.005 4%,and the quantification limit was 0.018%.The established method was used to measure simulated sample of zirconium-nickel alloy and zirconium-nickel alloy powder,the relative standard deviation of the measurement results was 0.208%-0.408%(n=11),and the recovery of sample standard addition was 98.9%-102.5%.This method can quickly and accurately determine the zirconium content in zirconium-nickel alloy powder.
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