超临界流体萃取与索氏提取法用于测定环境基质标准参考物质中多氯联苯的比较

Comparison of supercritical fluid extraction and Soxhlet extraction for the determination of polychlorinated biphenyls in environmental matrix standard reference materials.

作者信息

Schantz M M, Bøwadt S, Benner B A, Wise S A, Hawthorne S B

机构信息

Analytical Chemistry Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.

出版信息

J Chromatogr A. 1998 Aug 14;816(2):213-20. doi: 10.1016/s0021-9673(98)00528-7.

DOI:10.1016/s0021-9673(98)00528-7

PMID:9742714

Abstract

Supercritical fluid extraction (SFE) was compared to traditional Soxhlet extraction for the determination of polychlorinated biphenyl congeners in three standard reference materials: SRM 1941a (Organics in Marine Sediment), SRM 1944 (New York/New Jersey Waterway Sediment) and SRM 2974 [Organics in Mussel Tissue (Mytilus edulis) (Freeze-Dried)]. The concentrations determined using SFE compared well with the certified concentrations for the majority of the polychlorinated biphenyl congeners.

摘要

将超临界流体萃取（SFE）与传统索氏萃取进行了比较，以测定三种标准参考物质中的多氯联苯同系物：SRM 1941a（海洋沉积物中的有机物）、SRM 1944（纽约/新泽西河口水道沉积物）和SRM 2974 [贻贝组织（紫贻贝）（冻干）中的有机物]。对于大多数多氯联苯同系物，使用超临界流体萃取测定的浓度与认证浓度吻合良好。