光谱学与光谱分析 |
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Analytical Performance of CID-ICP-AES for Alkaline-Earth Elements |
XIN Ren-xuan |
Institute of Nuclear Energy Technology, Tsinghua University, Beijing 100084, China |
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Abstract The plasma spectrometer composed of Charge Injection Device(CID) and echell grating has excellent analytical performance. In the present paper, analytical performance of CID-ICP-AES was studied for alkaline-earth elements. The results showed that the detection limits were 0.000 03 mg·L-1 for Ca, 0.000 2 mg·L-1 for Be, Sr and Ba, and 0.000 1 mg·L-1 for Mg. The self-absorption coefficient was less than 1 for all alkaline earth elements and 0.7-0.8 for Ca and Mg. The linear range of the determination was 104-105. The photometric precision was RSD=1% when concentration was less than 1 mg·L-1.
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Received: 2002-12-18
Accepted: 2003-05-28
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Corresponding Authors:
XIN Ren-xuan
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[1] Sweedler T V, Bihon A B, Epperson P M et al. Anal. Chem.,1998, 60(4):282,291A. [2] ZHANG Zuo-yong, JIA Qiong, GUO Li-ping et al(张卓勇,贾 琼,郭黎平等).Spectroscopy and Spectral Analysis(光谱学与光谱分析)2001,21(2):230. [3] XIN Ren-xuan,SONG Chong-li(辛仁轩,宋崇立). Chinese Journal of Analytical Chmistry(分析化学),2000,28(8):978. [4] XIN Ren-xuan,ZHAO Yu-zhen,SHI Hong-jun(辛仁轩,赵玉珍,施洪钧). Chinese Journal of Analytical Chemistry(分析化学),1998,26(1):44.
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