USE OF THE SEMIPERMEABLE-MEMBRANE DEVICE AS AN IN-SITU SAMPLER OF WATERBORNE BIOAVAILABLE PCDD AND PCDF RESIDUES AT SUB-PARTS-PER-QUADRILLION CONCENTRATIONS

被引：64

作者：

LEBO, JA ^{[1
]}

GALE, RW ^{[1
]}

PETTY, JD ^{[1
]}

TILLITT, DE ^{[1
]}

HUCKINS, JN ^{[1
]}

MEADOWS, JC ^{[1
]}

ORAZIO, CE ^{[1
]}

ECHOLS, KR ^{[1
]}

SCHROEDER, DJ ^{[1
]}

机构：

[1] US FISH & WILDLIFE SERV,VICKSBURG FIELD OFF,VICKSBURG,MS 39180

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 1995年 / 29卷 / 11期

关键词：

D O I：

10.1021/es00011a027

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Semipermeable membrane devices (SPMDs) were used to passively sample aqueous polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in Bayou Meto, AR. The two sites were upstream and downstream from the confluence with a tributary that delivers PCDDs and PCDFs to the Bayou. Following dialysis, cleanup, and fractionation, four replicate 17-g SPMD samples from each site were analyzed by GC/MS, and four were evaluated by H4IIE bioassay. Traces of only OCDD and HpCDDs were detected in samples from the upstream site. The four samples from below the tributary contained averages of 1550 +/- 80 pg of 2,3,7,8-TCDD, 1640 +/- 80 pg of 2,3,7,8-TCDF, and lesser quantities of other congeners. The TCDD equivalents obtained by bioassay of replicate SPMD samples agreed well with results obtained by GC/MS. The quantities of 2,3,7,8-TCDD and 2,3,7,8-TCDF sequestered by SPMDs at the downstream site were used to estimate the aqueous concentrations for both compounds as 2 mu g/L.

引用

页码：2886 / 2892

页数：7

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