[Analytical performance of CID-ICP-AES for alkaline-earth elements].
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 0.00003 mg x L(-1) for Ca, 0.0002 mg x L(-1) for Be, Sr and Ba, and 0.0001 mg x 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 10(4)-10(5). The photometric precision was RSD=1% when concentration was less than 1 mg x L(-1).
Xin
Ren-xuan
RX
Institute of Nuclear Energy Technology, Tsinghua University, Beijing 100084, China.
D000327:Adsorption; D004602:Elements; D004867:Equipment Design; D019015:Geologic Sediments; D057230:Limit of Detection; D012106:Research; D013054:Spectrophotometry, Atomic / Q000379:methods*
D004602:Elements