DETERMINATION OF ALKYLPHOSPHONIC ACIDS BY CAPILLARY ZONE ELECTROPHORESIS USING INDIRECT UV DETECTION

被引：49

作者：

PIANETTI, GA

TAVERNA, M

BAILLET, A

MAHUZIER, G

BAYLOCQFERRIER, D

机构：

[1] FAC PHARM CHATENAY MALABRY,CHIM ANALYT LAB,5 RUE JB CLEMENT,F-92290 CHATENAY MALABRY,FRANCE

[2] UFMG,FAC FARM,CONTROLE QUALIDADE PROD FARMACEUT & COSMET LAB,BELO HORIZON,MG,BRAZIL

来源：

JOURNAL OF CHROMATOGRAPHY | 1993年 / 630卷 / 1-2期

关键词：

D O I：

10.1016/0021-9673(93)80474-M

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Capillary zone electrophoresis with indirect UV detection was used for the determination of a series of alkylphosphonic acids. For this purpose, a few UV-absorbing background electrolytes were tested and phenylphosphonic acid, which has a mobility close to that of the analysed compounds, was shown to be the most suitable. The influence of several parameters such as concentration of the UV-absorbing background electrolyte and concentration of borate on both sensitivity and efficiency was investigated. An increase in the borate concentration produced an improvement of the signal-to-noise ratio. Conversely, the sensitivity decreased with increasing concentration of the phenylphosphonic acid. The reproducibility of the method was verv satisfactory and limits of detection were less than 0.21 pmol injected.

引用

页码：371 / 377

页数：7