Abstract：The sample was fused with sodium peroxide at high temperature, and the sample solution was acidified with nitric acid and hydrochloric acid. Cr 267.716 nm was selected as the analytical line. The spectral background interference was overcome by background deduction with two-point method, and the physical interference was eliminated by matrix matching method. The calibration curve was prepared with iron matrix solution. Thus, a method was established for determination of chromium in high-carbon ferrochrome by inductively coupled plasma atomic emission spectrometry (ICP-AES). Under the working conditions of instrument, the linear range of calibration curve was w(Cr)=40%-100%, and the linear correlation coefficient was r>0.999. The experimental method was applied to determination of the certified reference materials, synthetic sample and actual sample of high-carbon ferrochrome. The results were basically consistent with the certified value, theoretical value or those obtained by standard method GB/T 4699.2-2008. The relative standard deviation(RSD, n=6) was less than 1.0%.
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