Multiresidue supercritical fluid extraction method for the recovery at low ppb levels of three sulfonamides from fortified chicken liver

被引:16
作者
Maxwell, RJ [1 ]
Lightfield, AR [1 ]
机构
[1] USDA ARS, Eastern Reg Res Ctr, Wyndmoor, PA 19038 USA
来源
JOURNAL OF CHROMATOGRAPHY B | 1998年 / 715卷 / 02期
关键词
sulfamethazine; sulfadimethoxine; sulfaquinoxaline;
D O I
10.1016/S0378-4347(98)00277-1
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
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. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:431 / 435
页数:5
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