摘要
The electrochemical of sudanⅠat an bismuth-film electrode has been studied.In the buffer solution of HAc-NaAc and ethanol(pH = 4.0),sudanⅠproduces an reductive peak at-0.5V,peak current showed a well linear relationship with concentration of sudanⅠin the range of 1.7×10-6mol/L～5.9×10-5mol/L,and to regression equation to ip =4.862+ 7.374C(×10-6mol/L),r=0.9978。 The limit of the detection is 8.1×10-7mol/L.This method can be applied to detemine sudanⅠ.
The electrochemical of sudan Ⅰ at an bismuth - film electrode has been studied. In the buffer solution of HAc - NaAc and ethanol（pH = 4.0） ,sudan Ⅰ produces an reductive peak at -0.5V,peak current showed a well linear relationship with concentration of sudan Ⅰ in the range of 1.7× 10^-6mol/L -5.9 × 10^-5mol/L,and to regression equation to ip =4. 862 ＋ 7. 374C（ × 10^-6 tool/L） ,r =0. 9978, The limit of the detection is 8.1 × 10^-7mol/L. This method can be applied to detemine sudan Ⅰ.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2007年第7期838-840,共3页
Chemical Research and Application
基金
河南省自然科学基金项目(0511020300)
关键词
苏丹红Ⅰ号
铋膜电极
循环伏安法
差分脉冲伏安法
sudan Ⅰ
bismuth - film electrode
cyclic voltammetry
differential pulse vohammetry
