Determination of bismuth in solid samples by hydride generation atomic fluorescence spectrometry with a dielectric barrier discharge atomizer.
An atmospheric pressure dielectric barrier discharge (DBD) atomizer was investigated for bismuth (Bi) determination with hydride generation (HG) atomic fluorescence spectrometry (AFS). The characteristics of the atomizer and the effects of experimental parameters, including observation height, discharge power, flow rate of discharge gas and AFS carrier gas were optimized. The linear range of present method for Bi determination is 0.5-300.0 microg L(-1) with a detection limit of 0.07 microg L(-1) (3 sigma). The method was validated by the analysis of reference materials (GBW08517 and GSB-14) and the results agreed well with the reference values. The established method was applied to the determination of Bi in ore, soil and ash samples.
Key Laboratory for Atomic and Molecular Nanosciences of the Education Ministry, Department of Chemistry, Tsinghua University, Beijing 100084, PR China.
Zhi
Z
Xing
Juan
J
Wang
Sichun
S
Zhang
Xinrong
X
Zhang
D001274:Atmospheric Pressure; D001729:Bismuth / Q000032:analysis* / Q000592:standards; D012016:Reference Values; D015203:Reproducibility of Results; D013050:Spectrometry, Fluorescence / Q000295:instrumentation / Q000379:methods*; D013054:Spectrophotometry, Atomic / Q000295:instrumentation / Q000379:methods*
D001729:Bismuth