微晶石蜡固液萃取分离-光度法测定痕量锌  

Spectrophotometric determination of trace amounts of Zn(Ⅱ) with microcrystalline paraffin by solid-liquid extraction and separation

作　　者：许虹[1] 傅少芬[1] 

机构地区：[1]佛山科学技术学院化学与化工系,广东佛山528000

出　　处：《佛山科学技术学院学报（自然科学版）》2010年第1期25-28,共4页Journal of Foshan University(Natural Science Edition)

摘　　要：研究了微晶石蜡固液萃取分离痕量Zn（Ⅱ）的行为及其与常见离子的分离。详细考察了影响锌的分离与测定的各种因素,在优化的实验条件下,当富集倍数为100时,回收率在97%-102%之间,RSD小于3.1%。该方法已成功应用于实际水样中Zn（Ⅱ）的富集测定,结果令人满意。The preconcentrate and separate behaviour of trace amounts of Zn（Ⅱ） with solid-liquid extraction system and the conditions for the separation of zinc with other metal ions were studied.Various experimental conditions were investigated in detail.Under the optimized experimental paramenters,when enriched to 100 times,the recovery of Zn（Ⅱ） is in a range of 97%~102%.The relative standard devation（RSD） is not beyond 3.1%.The proposed method has been applied to the preconcentration and determination of trace Zn（Ⅱ） in actual water samples with satisfactory results.

关 键 词：锌 微晶石蜡 固液萃取 分离富集 

分 类 号：O658[理学—分析化学]