原子荧光法联测海洋生物中砷和汞

福建水产 ›› 2011, Vol. 33 ›› Issue (4): 14-17.

原子荧光法联测海洋生物中砷和汞

陈财珍,席英玉,杨妙峰,钟硕良

福建省水产研究所

收稿日期:2011-07-27 修回日期:2011-08-15 出版日期:2011-10-25 发布日期:2011-11-07
通讯作者: 钟硕良

Improvenment of simultaneous determination of arsenic and mercury in marine organism by atomic fluorenscence apectrometry

Received:2011-07-27 Revised:2011-08-15 Online:2011-10-25 Published:2011-11-07

摘要/Abstract

摘要： 运用微波消解－原子荧光法联测海洋生物体中砷和汞，对仪器条件、消解体系、还原剂硼氢化钾浓度等进行优化，消除NO2-对测定的干扰。此法砷和汞的检测限分别为0.02mg/Kg和0.002 mg/Kg；相对标准偏差分别为2.83%和2.05%；通过分析验证该方法简单、灵敏，结果可靠，可用于海洋生物体中砷和汞联测。

关键词: 微波消解－原子荧光法, 联测, 砷和汞, microwave digestion-atomic fluorescence spectrometry, simultaneous determination, arsenic and mercury

Abstract: The method was presented for the simultaneous determination of arsenic and mercury in marine organism by microwave digestion-atomic fluorescence spectrometry.The influence of instrument parameters,digestive system, KBH4 concentration were optimized.The influence of NO2- was avoided.The developed method showed limits of detection of 0.02mg/Kg for arsenic , 0.002 mg/Kg for mercury and relative deviatiaons of 2.83% for arsenic ,2.05% for mercury.The method，its simplicity,sensitivity and reliability,has good suitability for the simultaneous determination of arsenic and mercury in marine organism.

陈财珍席英玉杨妙峰钟硕良. 原子荧光法联测海洋生物中砷和汞[J]. 福建水产, 2011, 33(4): 14-17.