摘要
将被测试液、氢化元素－ＮａＯＨ－ＮａＢＨ４溶液及ＨＣｌ溶液用三道蠕动泵在相同速率下，提取送入Ｔ型动态反应器，生成的气态氢化物由氩气载入等离子气中，测量谱线强度，该方法不需分离，直接测定，灵敏度高，干扰少的特点，是测定痕量硒的一种有效分析手段，方法下限可达０．０１７μｇ·ｇ－１，样品回收率为９８．８９％～１０１．２０％，结果令人满意。
The mixed solutions of the hydrogenized element NaOH NaBH 4 and HCl solution were fed into hydride vapor generator at the same rate by multi flow peristaltic pump.Selenium element in the aqueous solution reacted on the nascent hydrogen to generate gaseous hydride.No separation was needed and the method was highly sensitive with little interference.The selenium content in spirulina was determined and a reliable analytical method was established.The determination limit of the method was 0 017 μg·g -1 ,and the recovery of the samples was 98 89% 101 20%.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1999年第4期610-612,共3页
Spectroscopy and Spectral Analysis
关键词
原子吸收光谱
螺旋藻
硒
测定
Hydride generation, Atomic absorption spectrometry, Spirulina, Selenium
