摘要
研究了在非离子表面活性剂Ｔｗｅｅｎ－８０存在下，ｐＨ＝５的ＮａＡｃ－ＨＡｃ缓冲介质中，Ｚｎ（Ⅱ）与双硫腙（ＨＤ２）形成稳定的络合物，其最大吸收波长为５４０ｎｍ，表观摩尔吸光系数为９．７５×１０４，Ｚｎ２＋含量在０～１６μｇ／２５ｍｌ范围内遵守比耳定律。建立了在水相测定微量锌的方法。
A research is carried out for a stable complex formed by Zn(Ⅱ) and dithizone (HD 2) as the non ion surface active agent Tween 80 exists, i.e, in the buffering medium NaAc HAC having its pH=5, with maxwavelength absorption being 540 nm, with apparent Mole absorbance coefficent being 9.75×10, Zn 2+ and the amount contained in the range of 0￣16 μg/25 ml which complies with Bear law. The paper thus establishes the method through which a micro amount of Zn can be measured in aqueous phase.
出处
《辽宁工学院学报》
1997年第1期66-67,92,共3页
Journal of Liaoning Institute of Technology(Natural Science Edition)
