Abstract：The analytical line wavelength, integral time and background point position in the determination of arsenic, bismuth, lead, stibonium and tin in pure niobium and niobium products by direct current arc spectrometry were tested and obtained. The detection limits of arsenic, bismuth, lead, stibonium and tin in method were all less than 2 μg/g. The content of arsenic, bismuth, lead, stibonium and tin in self-made samples was determined under the selected experimental conditions. The relative standard deviations (RSD, n=9) of determination results were between 6.5% and 10%. The recovery test of standard addition was conducted according to the proposed method, and the recoveries were between 82% and 116%. The found results of self-made samples were consistent with the theoretical values and those obtained by spark source atomic emission spectrometry and grating spectrometry.
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FU Jun-sheng, ZHANG Ren-hui, LI Ji-hong. Determination of arsenic,bismuth,lead,stibonium and tin in pure niobium andniobium products by direct current arc spectrometer. , 2015, 35(8): 66-70.
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