分析化学2011，Vol.39Issue(1)：115-119,5.
天然磁铁矿吸附-电感耦合等离子体质谱测定砷
Natural Magnetite Solid Phase Extraction-Inductively Coupled Plasma Mass Spectrometry for Determination of Arsenic in Water
摘要
Abstract
The performance of natural magnetite used as extractant for solid phase extraction and its application for the determination of arsenic in water were studied. The parameter affecting the extraction and adsorption process was optimized. Under the optimized conditions (extraction time was 48 h,pH was 5, magnetite was 5 g), the limit of detection of this method was 0. 039 μg/L, RSD (n=8)was 0.7％. This method is simple, and can be successfully applied to determine As in water sample with good accuracy and precision. The results were evaluated by comparing with a CRM (GBW08605)standard sample.关键词
天然磁铁矿/富集/电感耦合等离子体质谱/砷/价态Key words
Natural magnetite/ Preconcentration/ Inductively coupled plasma mass spectrometry/Arsenic/ Valence state引用本文复制引用
刘春华,郭华明,郑伟,李媛..天然磁铁矿吸附-电感耦合等离子体质谱测定砷[J].分析化学,2011,39(1):115-119,5.基金项目
本文系教育部新世纪优秀人才支持计划项目(No.NCET-07-0770)"十一五"国家科技支撑计划重点项目(No.2006BAJ08B04)资助 （No.NCET-07-0770）
