摘要
在苯胲类试剂 乙醇 醋酸铵体系中,Cr(VI)、Cd2+、Cu2+都能产生灵敏的阴极络合吸附波。Cr(VI)的二次导数峰电位在-0.92V(vs.SCE)处,在0.0017～0.67μg/mL范围内与峰电流成正比;Cu2+的峰电位在-0.21V(vs.SCE)处,在0.0083～5.8μg/mL范围内与峰电流成正比;Cd2+的峰电位在-0.70V(vs.SCE)处,线性范围为0.0017～0.117μg/mL。这一方法为工业废水中重金属的同时测定提供了可靠、灵敏的检测方法。
The sensitive cathodic voltammetric peaks of Cr(VI), Cd~ 2+ and Cu~ 2+ occured in EtOH- NH 4 Ac medium due to the adsorption of their complexes on mercury electrode. The second derivative peak heights linearly responded to the concentrations of Cr(VI),Cd~ 2+ and Cu~ 2+ ,respectively. Based on this, a reliable and sensitive method has been developed for the simultaneous determination of those metals in industrial waste water.
出处
《分析科学学报》
CAS
CSCD
北大核心
2003年第5期472-473,共2页
Journal of Analytical Science
