摘要
在比较钴的基体改进剂的基础上，选定了ＮＨ４ＶＯ３为基体改进剂，拟定了用石墨炉原子吸收法测定人发中痕量钴的分析方法．结果表明，方法的线性范围为０～３２０ｎｇ／ｍＬＣｏ２＋，其特征量为１．３×１０－３μｇ／（ｍＬ·１％）．
In determination of trace cobalt with graphite furnace atomic absorption spectrophotometry(GFAAS), the effect of matrix modifier of some reagents has been studied and compared. NH 4VO 3 is selected as the matrix modifier for changing the atomization process of sample of the biology. The sensitivity of the method is raised. The sensitivity is 1.3×10 -3 μg/(mL·1%). The calibration curve is linear for concentration 0～320 ng/mL Co 2+ . The relative error is ±2.7%. for the determination of trace Co in standard biological samples.
出处
《陕西师范大学学报（自然科学版）》
CAS
CSCD
1996年第3期57-59,共3页
Journal of Shaanxi Normal University：Natural Science Edition
基金
陕西省卫生厅科研资助
