摘要
报道了测定痕量镍的一种新方法．在ＮＨ３·Ｈ２Ｏ－ＮＨ４Ｃｌ－安息香缩氨基硫脲体系中，镍产生一灵敏的还原波，该波的峰电位是－０．７５Ｖ（ｖｓ·ＳＣＥ），镍的浓度在１．０×１０－８～８．０×１０－７ｍｏｌ／Ｌ范围内与峰高成直线关系，检测限是３．０×１０－９ｍｏｌ／Ｌ，该法用于测定水中痕量镍，结果令人满意．
A new method for determination of trace amounts of nickel was described. In NH3·H2O-NH4Cl solution, Ni-benzoin thiosemi-carbazone(BTSC) complex produces a very sensitive reduction peak. The peak potential of the wave is-0. 75V(vs. SCE). The change of the peak height for concentration of nickel is linear in the range of 1. 0×10-8～8.0×10-7 mol/L. The detection limit is 3. 0×10-9mol/L. The method has been used for the determination of trace amounts of nickel in water with satisfactory results.
出处
《广东微量元素科学》
CAS
1994年第4期45-49,共5页
Trace Elements Science
