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研究论文

二次微分简易示波伏安法用于安乃近测定

  • 陶福芳 ,
  • 张宏芳 ,
  • 熊迅宇 ,
  • 郑建斌
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  • 西北大学电分析化学研究所,西北大学电分析化学研究所,西北大学电分析化学研究所,西北大学电分析化学研究所 陕西西安710069 ,陕西西安710069 ,陕西西安710069 ,陕西西安710069

收稿日期: 2002-05-28

  修回日期: 2002-05-28

  网络出版日期: 2002-05-28

Determination of Novalgin with Second Order Differential Simple Oscillographic Voltammetry

  • TAO Fu_fang ,
  • ZHANG Hong_fang ,
  • XIONG Xun_yu ,
  • ZHENG Jian_bin
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  • (Institute of Electroanalytical Chemistry,Northwest University,Xi'an 710069,China

Received date: 2002-05-28

  Revised date: 2002-05-28

  Online published: 2002-05-28

摘要

根据安乃近在 0 .1mol·L-1 KNO3 底液中产生切口 ( - 1 .2V(vs.SCE) )的示波特性 ,建立了安乃近的二次微分简易示波伏安测定法 ,并对安乃近片剂中的含量进行了直接测定 .校正曲线的线性范围为 5.0× 1 0 -6 ~ 5.0× 1 0 -5mol·L-1 ,检出限为 2× 1 0 -6 mol·L-1 ,对 3 .0 0 0× 1 0 -5mo1·L-1 安乃近五次测定结果的相对标准偏差为 2 .1 % .本法具有仪器装置简单、经济 ,方法简便、快速 ,无需通氮除氧以及不必滤除赋形剂等优点

本文引用格式

陶福芳 , 张宏芳 , 熊迅宇 , 郑建斌 . 二次微分简易示波伏安法用于安乃近测定[J]. 电化学, 2002 , 8(2) : 224 -227 . DOI: 10.61558/2993-074X.3292

Abstract

Based on the oscillographic characteristic of novalgin that incision can be caused at -1.2 V( vs .SCE) in 0.1 mol·L -1 KNO 3 , a new electronanlytical method, second order differential simple oscillographic voltammetry for the determination of novalgin was found. The method was applied to the determination of novalgin in tablet. The calibration graph is linear from 5.0×10 -6 to 5.0×10 -5 mol·L -1 with a detection limit of 2×10 -6 mol·L -1 . The relative standard deviation of the method is 2.1% for 3.00×10 -5 mol·L -1 novalgin.The determination results showed that the simple oscillographic voltammetry is a convenient method for its cheap equipment and rapid measurement.

参考文献

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