摘要
石墨探针原子化技术是一种实现等温原子化和改善灵敏度行之有效的方法。采用此方法对痕量镍的测定作了一系列条件试验，峰面积与镍浓度在０～２００ｎｇ／ｍＬ范围内呈线性关系，特征量为５１．８３ｐｇ，检出限为８６．８２ｐｇ，相对标准偏差为３．８６％。并成功地测定了发标和发样中痕量镍的含量，回收率为９４．５～１０５．７％。该方法灵敏度高，操作简单、快速，结果满意。
A simple, ralid and accurate method for the determination of trace nickel in human hair samples by graphite probe furnace AAS has developed. The concentration of nickel and the absorbance (Peak-area mode) showed an excellent linear relation in the range of 0～200ng/mL. The characteristic mass, detection limit and precision of nickel were 51.83pg, 86.82pg and 3.86% RSD respectively. A standard addition test gave a recovery of 94.5～105.7%。
出处
《分析测试技术与仪器》
CAS
1997年第4期227-231,共5页
Analysis and Testing Technology and Instruments
关键词
石墨探针
石墨炉
原子吸收光谱
镍
人发
发镍
graphite probe graphite furnace atomic absorption spectrometry trace nickel human hair
