摘要
本文研究制定了一种泡沫塑料吸附-石墨炉原子吸收光谱法测定地质物料中痕量铊的分析方法．在所定的实验条件下，方法检出限为0．05μg／g，校准曲线范围为10－300ng／mL；T1含量水平为0.71μg／g时的测定精度（RSD，n=11）为6.0％，方法回收率99．0％－100.0％。经标样及大量样品分析验证，分析方法准确可靠。
An analytical method of the determination of trace thallium in geological materials by GFAAS after preconcentration by polgurethane foam was developed in this paper. The detection limit of themethod is 0. 05μg/g. The dynamic working range is 10- 300ng/mL. The relative standard deviationis 6. 0% in the levels of 0. 71μg/g. 26 geochemiCal reference materials(GSR1- 6,GSS1- 8 and GSD1- 12) were determined by the method. The results obtained are in good agreement with the certifiedvalues.
出处
《光谱实验室》
CAS
CSCD
1997年第2期71-75,共5页
Chinese Journal of Spectroscopy Laboratory
关键词
泡沫塑料
石墨炉
原子吸收光谱
地质物料
铊
Polyurethane Foam Preconcentration, GFAAS,Geological Materials, Thallium
