Comparison of Solid-Phase Extraction and Liquid-Liquid Extraction Methods for Liquid Chromatographic Determination of Diltiazem and its Metabolites in Plasma

1990 ◽  
Vol 13 (19) ◽  
pp. 3799-3807 ◽  
Author(s):  
J. L. Bonnefous ◽  
R. Boulieu
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Chromatographic Determination ◽  
Extraction Methods ◽  
Liquid Extraction ◽  
Phase Extraction ◽  
Liquid Liquid Extraction ◽  
Liquid Chromatographic Determination ◽  
Liquid Chromatographic

Liquid Chromatographic Determination of Acifluorfen in Soil and Water

1990 ◽  
Vol 73 (4) ◽  
pp. 599-601
Author(s):  
Mara Gennari ◽  
Michèle Negre ◽  
Alessandro Cignetti
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Chromatographic Determination ◽  
Phase Extraction ◽  
Uv Detector ◽  
Liquid Chromatograph ◽  
Liquid Chromatographic Determination ◽  
Liquid Chromatographic ◽  
Soil And Water

Abstract An analytical method based on the use of a liquid chromatograph equipped with a UV detector was developed for the determination of acifluorfen In soil and water. Acifluorfen was extracted from soil In methanol-0.10N NaOH (80 + 20 v/ v) and from water by partition with dlchloromethane. Solvent partitioning and solid-phase extraction were used to separate acifluorfen from major Interfering sample components. Average recoveries from soil at 1, 0.1, and 0.01 ppm fortification levels were 95.1 ± 3.4,92.6 ± 2.9, and 73.9 ± 3.0%, respectively. Recoveries from water spiked at levels from 0.01 to 1 ppm averaged 96.5 ± 5.4%. Method limits of detection were 0.006 ppm in soil and 0.003 ppm In water.

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