期刊论文

中文

化学试剂

0258-3283

2012

34

12

1096-1100

10.13822/j.cnki.hxsj.2012.12.027

湖南省创新平台开放基金资助项目（09k099） 湖南省重点建设学科资助项目 衡阳市科技局资助项目（2010KJ27） 湖南省大学生创新性研究资助项目（20II）.

本校为第一机构

制备了纳米碳羟基磷灰石(CHAP)固定化1-吡啶-3-[4-(苯基偶氮)苯基]-三氮烯(PYPAPT)修饰石墨微电极(CHAP@PYPAPT/CPE),采用循环伏安方法对电极进行了表征,研究了SDS在该电极上的电化学行为。实验结果表明,在pH 7.73的Na_2HPO_3-KH_2PO_3溶液中,峰电流与SDS的浓度在7.34×10~(-7)~5.50×10~(-6)mol/L的范围内呈良好的线性关系,线性方程为i=0.554 63+0.186 93c_(SDS),检出限为6.63×10~(-8)mol/L。利用该电极分测别定了生活废水和工业废水中的SDS的含量,回收率为99.2%和100.7%,结果十分满意。

The carbon black microeiectrodes modified with nano carbonate hydroxylapatite （CHAP） immobilizing l-pyri- dine-3-（4-phenylazophenyi）-triazene （PYPAPT） were prepared. The prepared electrodes were characterized by cyclic voltammetry （CV）, and the electrochemical behaviors of SDS on the modified electrode were investigated. In Na2HPO3- KH2PO3 solution of pH 7.73, a good linear relationship was obtained between peak current and SDS concentration in the range of 7.34 ×10^7-5.50× 10^-6 mol/L with the detection limit of 6.63 × 10 ^-8mol/L, ...