2011•Chinese Journal of Health Laboratory TechnologyRequires access
Synchronizing determination of mercury and arsenic in food by hydride atomic fluorescence spectrometry with microwave digestion
Zhang Jing-yun
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Abstract
Objective:To establish a method for synchronizing determination of mercury and arsenic in food by atomic fluorescence spectrometry with microwave digestion.Methods:The food were dissolved by microwave and Hg,As in them were synchronizing detected by double-channel hydride generation-atomic fiuorcscence spectrometry.Results:Linear range for the determination was:rHg=0.9998,rAs=0.9997.The detection limit was:Hg:0.0002 mg/kg,As:0.005 mg/kg,with the RSD was:Hg:1.2%,As:0.83%.The recovery rate was:Hg:85%～91%,As:94%～103%.Conclusion:The method is simple and rapid with good accuracy.So it is suitable for the current determination of batch.