Comparison of quantitative high performance thin layer chromatography and the high performance liquid chromatography of parabens

被引:47
作者
Thomassin, M [1 ]
Cavalli, E [1 ]
Guillaume, Y [1 ]
Guinchard, C [1 ]
机构
[1] FAC MED & PHARM,CHIM ANALYT LAB,F-25030 BESANCON,FRANCE
关键词
p-hydroxybenzoic esters; high performance thin layer chromatography; high performance liquid chromatography; rapid quantitative analysis method;
D O I
10.1016/S0731-7085(96)01914-0
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A method is described for the densitometric determination of the p-hydroxybenzoic esters and p-hydroxybenzoic acid in mixtures or in drugs. This method is compared with the one used in high performance liquid chromatography (HPLC). The calibration curves were linear in interval 0.250-3.60 mu mol ml(-1) per 200 nl per spot. The limit of detection and the relative standard deviation (RSD) are higher than in HPLC (RSD is 6% in HPTLC, 3% in HPLC; limit of detection about 40 pmol in HPTLC and 25 pmol in HPLC) but HPTLC quantitative determination of parabens in drugs is faster.
引用
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页码:831 / 838
页数:8
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