Accelerated solvent extraction of fluometuron from selected soils.
Accelerated solvent extraction (ASE) is a recently developed extraction technique that is more rapid and produces less waste than do conventional liquid/liquid extraction methods. Optimal conditions were determined for ASE of fluometuron from 2 Weswood clay loam soils. Two solvents (acetonitrile and methanol), 2 temperatures (50 and 100 degrees C), and the number of static cycles (1, 2, and 3) were evaluated. The most efficient and reproducible extractions were obtained when methanol was combined with a 50 degrees C extraction temperature and the static cycle was repeated 3 times. These experiments indicated that existing extraction methods for fluometuron can easily be adapted for ASE.
Lancaster
Sarah
S
Texas A&M University, Soil and Crop Sciences, 2474 TAMU, 370 Olsen Blvd, College Station, TX 77843, USA. srhans@tamu.edu
Senseman
Scott
S
Carson
Katherine
K
D000097:Acetonitriles / Q000032:analysis; D002623:Chemistry Techniques, Analytical / Q000379:methods*; D002845:Chromatography / Q000379:methods; D004785:Environmental Pollutants; D000432:Methanol / Q000032:analysis / Q000737:chemistry; D008782:Methylurea Compounds / Q000032:analysis / Q000302:isolation & purification*; D052638:Particulate Matter; D015203:Reproducibility of Results; D012987:Soil / Q000032:analysis*; D012989:Soil Pollutants / Q000032:analysis*; D012997:Solvents / Q000032:analysis / Q000737:chemistry*; D013696:Temperature; D013997:Time Factors
D000097:Acetonitriles; D004785:Environmental Pollutants; D008782:Methylurea Compounds; D052638:Particulate Matter; D012987:Soil; D012989:Soil Pollutants; D012997:Solvents; C005015:fluometuron; D000432:Methanol; C032159:acetonitrile