摘要
介绍了一种悬浮液进样次灵敏线火焰原子吸收光谱法(FAAS)测定大白口蘑中锰的方法。以琼脂为悬浮剂将大白口蘑样品均匀、稳定地悬浮于琼脂溶胶中,直接喷入空气—乙炔火焰中,采用锰280.1 nm次灵敏线,工作曲线或标准加入法测定,省去了以往繁琐的样品化学前处理过程,解决了高锰样品测定中由于称样量小、稀释倍数过大所引起的分析误差。方法简便、快速。用本法测定大白口蘑标准样品,获得满意结果。
A method for the direct determination of manganese in Tricholoma giganteum using suspension sample introduction and hypo - sensitive wavelength by Flame Atomic Absorption Spectrometry（FAAS） was developed without chemical treatment. Agar sol was used as a suspending agent. Ground and sieved Tricholoma giganteum sample was suspended homogeneously in the agar sol and introduced into air- acetylene flame and manganese in the samples were determined directly. The results showed that the method was simple, rapid with no interference. The linear range was 0-12 μg/ml. The relative standard deviation（RSD） was 0.67 % and the recovery was 99.70 %. It has been applied to determination of standard Tricholoma giganteum samples, and a good agreement was achieved.
出处
《微量元素与健康研究》
CAS
2007年第6期43-44,共2页
Studies of Trace Elements and Health
基金
云南省教育厅科研基金项目(A3003026)
关键词
悬浮液进样
次灵敏线火焰原子吸收光谱法
大白口蘑
锰
Suspension sampling
Hypo- sensitive wavelength, Flame atomic absorption spectrometry
Tricholoma giganteum
Manganese
