DETERMINATION OF CARBENDAZIME IN LETTUCE SAMPLES BY SFE-HPLC

被引：25

作者：

JIMENEZ, JJ ^{[1
]}

ATIENZA, J ^{[1
]}

BERNAL, JL ^{[1
]}

TORIBIO, L ^{[1
]}

机构：

[1] UNIV VALLADOLID,FAC SCI,DEPT ANALYT CHEM,E-47005 VALLADOLID,SPAIN

来源：

CHROMATOGRAPHIA | 1994年 / 38卷 / 5-6期

关键词：

SUPERCRITICAL FLUID EXTRACTION; COLUMN LIQUID CHROMATOGRAPHY; CARBENDAZIME ANALYSIS; VEGETABLE SAMPLES;

D O I：

10.1007/BF02269786

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

An SFE-HPLC method for the determination of carbendazime in lettuce leaves is described. The method involves a prior lyophilization of the sample and subsequent extraction with supercritical carbon dioxide containing methanol. The extraction conditions are as follows: amount of lyophilized sample, 1 g; CO2 density, 0.75 g/ml; temperature, 50-degrees-C; flow-rate, 1.8 ml/min; dynamic extraction time, 25 min. Carbendazime is determined with an octadecylsilane column, an acetonitrile/water 30: 70 mobile phase and fluorescence detection at 285/317 nm. Carbendazime recoveries from spiked samples were all close to 100 %. A comparison with the results from a conventional method for the determination of carbendazime reveals the new method to be more rapid, simple and reproducible for samples with low concentrations of analyte.

引用

页码：395 / 399

页数：5

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