Estimation of the uptake rate constants for polycyclic aromatic hydrocarbons accumulated by semipermeable membrane devices and triolein-embedded cellulose acetate membranes

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Estimation of the uptake rate constants for polycyclic aromatic hydrocarbons accumulated by semipermeable membrane devices and triolein-embedded cellulose acetate membranes
	Ke, RH; Xu, YP; Wang, ZJ; Khan, SU
刊名	ENVIRONMENTAL SCIENCE & TECHNOLOGY
	2006
卷号	40 期号:12 页码:3906-3911
英文摘要	In this paper we report an extension of our previous work on the triolein-embedded cellulose acetate membrane ( TECAM) as a passive sampling device ( PSD) and describe the results from simultaneous exposure of TECAMs and triolein-containing semipermeable membrane devices ( SPMDs) to PAHs in lake water for 16 days. The data obtained provided a comparison of the uptake rates of specific PAHs by the two PSDs. Using 16-day accumulation tests, similar PAH distribution patterns in TECAMs and in SPMDs ( R 2) 0.89, p < 0.0001) were observed. However, it was noted that TECAMs could take up greater amounts of PAHs than SPMDs ( 735 ng/g of TECAM vs 630 ng/g of SPMD). Uptake rate constants of TECAMs and SPMDs for 16 priority pollutant ( PP) PAHs, corrected for dissolved organic carbon, ranged from 0.28 to 2.94 L d(-1) and from 0.16 to 0.91 L d(-1), respectively. The elimination rate constants of TECAMs were 1.4-6.7 times greater than those observed for SPMDs, thereby indicating that PAHs required shorter times to achieve equilibrium in TECAMs than in SPMDs. Thus, the results of the present study suggest that TECAMs have significant potential as a good monitor to assess the pollution of hydrophobic pollutants in aquatic environments.
WOS记录号	WOS:000238217200040
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/22995]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Ke, RH,Xu, YP,Wang, ZJ,et al. Estimation of the uptake rate constants for polycyclic aromatic hydrocarbons accumulated by semipermeable membrane devices and triolein-embedded cellulose acetate membranes[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2006,40(12):3906-3911.
APA	Ke, RH,Xu, YP,Wang, ZJ,&Khan, SU.(2006).Estimation of the uptake rate constants for polycyclic aromatic hydrocarbons accumulated by semipermeable membrane devices and triolein-embedded cellulose acetate membranes.ENVIRONMENTAL SCIENCE & TECHNOLOGY,40(12),3906-3911.
MLA	Ke, RH,et al."Estimation of the uptake rate constants for polycyclic aromatic hydrocarbons accumulated by semipermeable membrane devices and triolein-embedded cellulose acetate membranes".ENVIRONMENTAL SCIENCE & TECHNOLOGY 40.12(2006):3906-3911.