Determination of mercury in water, tissue, and sediment using microwave digestion and a flow injection CVAAS mercury system

摘要：

A commercially available flow injection CVAAS mercury system was used for the analysis of low level mercury in water (with and without organic matter), tissue, and sediment. We obtained detection limits as low as 15ng/L and a reliable range of analyzed concentrations up to 20μg/L. By using microwave digestion methods, the accurate determination of inorganic and total mercury concentrations can be made. The concentrations of reagents, flow rates, and microwave conditions were among the system variables optimized. The measured recovery of mercury was 97％-102％ in water, 101％-107％ for water containing natural organic matter, 92％-108％ for tissue, and 83％-88％ for sediment samples.

关键词： flow injection CVAAS microwave digestion inorganic mercury total mercury

作者: X.Xu E. R. Carraway

作者单位: School of the Environment, Clemson University, 342 Computer Court, Anderson, SC 29625, USA

会议类型: 国际会议

会议名称: 第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)

会议地点: 北京

会议语种:英文

页码: 499-500

在线出版日期: 2007-07-15（万方平台首次上网日期，不代表论文的发表时间）