摘要
本文研究了在硼砂介质中，苯酚及其衍生物的电化学行为，利用苯酚在－０．５Ｖ（对ＳＣＥ）吸附富集，再进行氧化溶出，建立了测定苯酚的新方法．对苯酚的检出限为８×１０－８ｍｏｌ·Ｌ－１，浓度在５×１０－７～８×１０－６ｍｏｌ·Ｌ－１范围内与溶出电流有良好的线性关系．用于酚醛树脂涂料马口铁制成的蕃茄酱罐头中苯酚的测定，回收率在８４．５％～８６．
On the basis of the adsorptive enriching of phenols at the carbon paste electrode(CPE) at-0.5V(vs. SCE) and the further electrochemical oxidative stripping at+ 0.5V in the medium of borax a new method for determining phenol was developed. The detection limit for phenol is 8×10 -8 mol·L -1 . The content of phenol depends linearly on the stripping current in the range of 5×10 -7 ￣8×10 -6 mol·L -1 . For the detection of phenol in the tomato sauce canned with the phenolic resin coated tinplate, the recovery is from 84.5% to 86.7%.
出处
《分析科学学报》
CAS
CSCD
1996年第4期323-325,共3页
Journal of Analytical Science
关键词
苯酚
炭糊电极
电化学氧化
硼砂
污染物
Phenol, Carbon paste electrode(CPE), Electrochemical oxidation, Borax, Paraffin oil
