摘要
研究了在HCI—V.C—KI—PVA混合底液体系中镉的络合吸附波的性质。对该体系进行了最佳条件选择,确定了镉的吸附催化波电位为-0.65V(vs.SCE),镉离子浓度在8.897×10^(-8)～1.335×10^(-5)mol/L范围内与波峰电流呈线性关系,测定下限4.448×10^(-8)mol/L,并对极谱机理进行了讨论。
The complex adsorptive wave of Cd in HC1 -V.C -KI -PVA mixed base solution was -studied for polarographic determination of Cd in H2SO4. Cd adsorptive catalytic wave potential is -0. 65V (vs. SCE) and the optimized analysis conditions is determined. Cd concentration is linearly related to the peak current in the range of 8. 897 × 10- 8~ 1.335 × 10-5 mol/L and the detection limit is 4.448 × 10-8mol Cd/L. The polarographic behaviour and electrod reaction mechanism are discussed.
出处
《硫酸工业》
CAS
1993年第4期19-23,60,共5页
Sulphuric Acid Industry
