SUPERCRITICAL-FLUID EXTRACTION OF SULFONYLUREA HERBICIDES IN SOIL SAMPLES

被引：13

作者：

BERDEAUX, O

DEALENCASTRO, LF

GRANDJEAN, D

TARRADELLAS, J

机构：

[1] Institut de genie de Venvironnement, Ecole polytechnique federale

来源：

INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY | 1994年 / 56卷 / 02期

关键词：

SUPERCRITICAL FLUID EXTRACTION; SULFONYLUREA HERBICIDES; CHLORSULFURON; METSULFURON METHYL; SOILS;

D O I：

10.1080/03067319408039799

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The application of supercritical fluid extraction (SFE) with supercritical CO2 to the analysis of 2 sulfonylurea herbicides in 4 soils is presented. Methanol and water are added to the soil samples as modifiers. After extraction, Chlorsulfuron and Metsulfuron methyl are measured by HPLC-UV at 220 nm. The recovery rates are good (>80%) for all types of the studied soils except for those with high organic carbon content (ca. 50%). According to the characteristics of the soils, recovery with SFE is similar or better than with liquid-solid extraction.

引用

页码：109 / 117

页数：9

共 9 条

[1]

Beyer E.M., 1988, HERBICIDES CHEM DEGR, V3, P117

[2] MODE OF ACTION, CROP SELECTIVITY, AND SOIL RELATIONS OF THE SULFONYLUREA HERBICIDES [J].