用活性碳纤维滤布富集分离氢醌容量法测定金  

Au determination by activated carbon fibre filter cloth enrichment and separation hydroquinone capacitance standard

作　　者：张汝生[1] 邱宏喜 薛光[1] 

机构地区：[1]武警黄金第七支队,山东烟台264004

出　　处：《黄金地质》2004年第4期84-87,共4页Gold Geology

摘　　要：在封闭式水浴溶样器中,采取HNO3 NH4HF2 KMnO4 NaCl体系溶矿。拟定用新型过滤材料C活性纤维滤布为吸附体制备吸附柱,抽滤吸附富集分离氢醌容量法测定Au。C活性纤维滤布以纤维做骨架,增加了C活性的表面积,使该吸附体对Au的吸附率达99 6%。C活性纤维滤布强度大,在转移及灰化过程中不易损失,能避免样品分析过程中因此带来的误差,方法的RSD≤1 68%。与C活性富集分离法相比,具有操作简单快速,成本低,准确度高等优点。The samples in occluding liquid bath style were dissolved by HNO_3-NH_4HF_2-KMnO_4-NaCl system.The new percolation material-activated carbon fibre filter cloth had been used as absorption body to determine Au with hydroquinone capacitance standard.By taking fibre as the framework of activated carbon filbre filter cloth,the surface area of activated carbon was increased greatly,and the quotiety of adsorption has got to 99.6%.Otherwise,in process of shifting and incinerating,the errors in analyzing would be avoided by its great intensity.The RSD≤1.68%.Comparing to the activated carbon enrichment and separation method,it is easier and faster to operate, costs low and be precise.

关 键 词：金 C活性纤维滤布 氢醌容量法 封闭式水浴溶样器 

分 类 号：O655.2[理学—分析化学]