Determination of Pb and Cd in Environmental Water Sample by On-Line Mini-Column Preconcentration and Flow Injection-Flame Atomic Absorption Spectrometry
WANG Ai-xia, GUO Li-ping, WU Dong-mei
Analysis and Testing Center, Northeast Normal University, Changchun 130024, China
Abstract：Trace Pb and Cd in environmental water samples were preconcentrted and determined by on-line mini-column field sampling and flow injection-flame atomic absorption spectrometry(FI-FAAS), and the adsorption materials of the column were activated carbon loaded 8-HQ，DDTC and APDC. Satisfactory results of the determination of Pb and Cd in the certified reference materials(trace elements in water GBW 08608) and the South lake water were obtained by using the above method. The detection limit of 10 mL enrichment of Pb and Cd was 1.58 and 0.062 μg·L-1, respectively, and the relative standard deviation of Pb and Cd was 1.62% and 1.96% respectively.
Key words：Mini-column field sampling;Flow injection-flame atomic absorption spectrometry;8-hyolroxyquinolion;Dithiocarbamate;Ammonium pyrrolidinedithiocarbamite;Lead;Cadmium
王爱霞，郭黎平，吴冬梅. 微型柱现场预富集流动注射火焰原子吸收测定环境水样中的铅和镉[J]. 光谱学与光谱分析, 2006, 26(07): 1345-1348.
WANG Ai-xia, GUO Li-ping, WU Dong-mei. Determination of Pb and Cd in Environmental Water Sample by On-Line Mini-Column Preconcentration and Flow Injection-Flame Atomic Absorption Spectrometry. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(07): 1345-1348.
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