- Multiresidue supercritical fluid extraction method for the recovery at low ppb levels of three sulfonamides from fortified chicken liver.
Multiresidue supercritical fluid extraction method for the recovery at low ppb levels of three sulfonamides from fortified chicken liver.
Journal of chromatography. B, Biomedical sciences and applications (1998-10-29)
R J Maxwell, A R Lightfield
PMID9792530
ABSTRACT
A supercritical fluid extraction (SFE) method is proposed for the recovery of three sulfonamides from chicken liver. Samples were extracted at 680 bar and 40 degrees C using unmodified carbon dioxide and were collected free of co-extracted artifactual material on an in-line neutral alumina sorbent bed. High recoveries of sulfamethazine (SMZ), sulfadimethoxine (SDM) and sulfaquinoxaline (SQX) were obtained from chicken liver samples fortified at levels from 1000 to 50 ppm.
MATERIALS