[Determination of trace beryllium in geological samples by oxygen doped air-acetylene flame atomic absorption spectrometry].
A new method for the determination of trace beryllium in geological samples by oxygen-air-acetylene flame atomic absorption spectrometry is reported in the present paper. The optimum determination conditions were selected. When suitable amounts of 8-hydroxyquinoline are added, the interference effect from the coexisting elements can be minimized and the sensitivity for the determination of beryllium can be increased. The detection limit (k = 3) is 0.006 microg x mL(-1) for beryllium. The method has been applied to the determination of trace beryllium in geological standard samples, and the results are in good agreement with the certified values with a precision of 4.69% RSD( n = 8).
Wu
Shao-Wei
SW
Faculty of Materials Science and Chemical Engineering, China University of Geosciences, Wuhan 430074, China.
Yang
Xiao-Qiu
XQ
Chen
Wen-Wu
WW
Yang
Ming
M
Tang
Zhi-Yong
ZY
Jin
Ze-Xiang
ZX
D000114:Acetylene / Q000737:chemistry; D000143:Acids / Q000737:chemistry; D000388:Air; D001608:Beryllium / Q000032:analysis* / Q000737:chemistry; D019015:Geologic Sediments / Q000032:analysis* / Q000737:chemistry; D010100:Oxygen / Q000737:chemistry; D015125:Oxyquinoline / Q000737:chemistry; D015203:Reproducibility of Results; D013054:Spectrophotometry, Atomic / Q000295:instrumentation / Q000379:methods*
D000143:Acids; D015125:Oxyquinoline; D000114:Acetylene; D001608:Beryllium; D010100:Oxygen