【摘 要】
：
建立了一种顺序注射-氢化物发生原子荧光仪快速检测进出口鱼类中砷、汞含量的分析方法.样品经微波消解处理,并考察了酸度、KBH4浓度、硫脲-抗坏血酸加入量和预还原时间对测定
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建立了一种顺序注射-氢化物发生原子荧光仪快速检测进出口鱼类中砷、汞含量的分析方法.样品经微波消解处理,并考察了酸度、KBH4浓度、硫脲-抗坏血酸加入量和预还原时间对测定结果的影响.在优化实验条件下,砷和汞的检出限分别为0.49 ng/mL和0.04 ng/mL,线性范围分别为5～100 ng/mL和1～10 ng/mL,相关系数分别为0.9997和0.999 9.加标回收率为91％～ 108％,相对标准偏差(RSD)均小于5％.本法具有操作简单、快捷、灵敏度高、准确度好等优点,可满足鱼类中砷和汞的检测.
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