Simultaneous determination of migration of trace arsenic and antimony in food contact materials by sequential injection-hydride generation-atomic fluorescence spectrometry
A method for the simultaneous determination of migration of trace As and Sb in food contact materials by sequential injection-hydride generation-atomic fluorescence spectrometry with L-cysteine as a prereductant was developed.The influence factors such as L-cysteine,the acidity of sample solution and carrier liquid,the concentrations of NaBH4 and the interference of coexistent elements were investigated. The detection limits were 0.038 and 0.040μg/L,the LOQ were both 0.0010mg/L,the recoveries were in the ra...