巯基棉富集-石墨炉原子吸收法测定天然水中痕量金  

Determination of trace gold in natural water by atomic absorption method conducted in graphite furnace after enrichment with hydrosulfuryl cotton

作　　者：黄蕊[1,2] 邱立本[1,2] 俞穆清[1,2] 

机构地区：[1]冶金工业部长春黄金研究院 [2]中国科学院长春地理研究所

出　　处：《黄金》1997年第12期46-49,共4页Gold

摘　　要：对影响金在天然水中准确富集和测定的诸因素进行了试验和探讨，提出了巯基棉富集石墨炉原子吸收测定的方法，该方法具有富集倍数大，空白值低，灵敏度高，几乎无化学干扰的优点，检出限达００７ｎｇ／Ｌ。In this article ,the factors influencing the enrichment and determination of gold in natural water are explored and experimented and the determination of trace gold in natural water by atomic absorption method conducted in graphite furnace after enrichment with hydrosulfuryl cotton is proposed.This method has the advantages as multiple enrichment,high sensitivity,nearly no chemical interference etc..The detectability of the method reaches 0.07ng/t.

关 键 词：富集 天然水 巯基棉 痕量 化学干扰 空白值 检出限 石墨炉原子吸收法 倍数 灵敏度 

分 类 号：TF085[冶金工程—冶金物理化学] O657[理学—分析化学]