摘要
本文在石墨炉原子发射法测定钾的工作中，对原子化温度和时间，灰化温度和时间以及狭缝宽度等进行了选择，对背景辐射干扰、酸介质及浓度的影响进行的实验以及岩石样品的测定，均得到了较满意的结果。检出限为３．１×１０－１０ｇ，为测定微量钾提供了一个新的方法。这种方法可在分析陨石、超基性岩石以及环境等低钾样品时得到应用。
Method for the determination of potassium is studied by GFAES. The atomization temperature and time, ash temperature and time, and slit width are selected. The effects of background emission interference and type of acid and their concentration are discussed. The experimental conditions are optimized, reference samples are analysed and good results are obtained. The detection limit is 3. 1×10￣(-10)g. This method can be used to analyse low content potassium samples such as meteorite, ultramafic and environmental samples.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1996年第5期98-104,共7页
Spectroscopy and Spectral Analysis
