Simultaneous Determination of Mercury and Arsenic in Drinking Water by Double Channel Atomic Fluorescence Spectrometry

[Objective]To establish simultaneous determination of mercury and arsenic in drinking water.[Methods]The microwave digestion sample pretreatment technique was adopted to conduct sample disposable decomposition. Through various analyses of condition optimization and exploration, the simultaneous determination of mercury and arsenic in drinking water was realized. [Results] The recovery rates and detection limit of mercury and arsenic were 87.5%~105.0%, 93.8%~98.7%; 0.04, 0.34μg/L respectively. The accuracy were less than 5%.[Conclusion]This method is simple and fast, whose precision and accuracy meets the requirements of determination.