石墨炉原子吸收光谱法测定莱芜姜咸菜中铅的含量
Determination of Lead Content in Laiwu Ginger Pickles by Graphite Furnace Atomic Absorption Spectrometry
吕慧1
作者信息
- 1. 济南市莱芜区综合检验检测中心,山东济南 271100
- 折叠
摘要
通过优化实验程序,建立了微波消解-石墨炉原子吸收光谱测定姜咸菜中的铅含量的方法.结果表明,该方法的线性相关系数为 0.999 9,检出限为 0.007 mg·kg-1,加标回收率为 92.7%～100.6%,相对标准偏差为 0.1%～1.3%.方法方便快捷,准确度好,精密度高,适用于姜咸菜中铅含量的测定.
Abstract
By optimizing the experimental procedure,a method for the determination of lead content in ginger pickles by microwave digestion-graphite furnace atomic absorption spectrometry was established.The results showed that the linear correlation coefficient of this method was 0.999 9,the detection limit was 0.007 mg·kg-1,the recovery rate was 92.7%～100.6%,and the relative standard deviation range was 0.1%～1.3%.The optimized method is convenient and fast,with good accuracy and high precision,and is suitable for the determination of lead content in ginger pickles.
关键词
石墨炉原子吸收光谱法/姜咸菜/铅Key words
graphite furnace atomic absorption spectrometry/ginger pickles/lead引用本文复制引用
出版年
2024
NETL
NSTL
万方数据