Determination of pentachlorophenol in wastewater irrigated soils and incubated earthworms

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Determination of pentachlorophenol in wastewater irrigated soils and incubated earthworms
	Liu, Y; Wen, B; Shan, XQ
刊名	TALANTA
	2006
卷号	69 期号:5 页码:1254-1259
关键词	pentachlorophenol derivatization extraction soils earthworms
英文摘要	The analyses of low pentachlorophenol (PCP) in soils and earthworms require a sensitive and reliable analytical method. In this paper, several derivatization methods and extraction solvents were compared systematically. The derivatization reagents included acetic anhydride, 2,3,4,5,6-pentafluorobenzyl bromide (PFBBr) and diazomethane. Hexane, acetone, hexane-acetone (1:1), dichloromethane and methanol were used as the extraction solvents. PFBBr derivatization showed the highest sensitivity. The derivatization parameters of PFBBr including the amount of PFBBr, the power and irradiation time of microwave were optimized. As a result, 200 mu l of PFBBr (10%) at 150 W of microwave oven for 30 min achieved the best result. The PFBBr derivatization method had the detection limit of 0.07 mu g l(-1) of PCP. Extraction by a mixture of hexane and acetone (1:1) showed the best recoveries. The recommended method was used to determine the low PCP in soils irrigated by wastewater and earthworms incubated in the corresponding soils. The concentrations of PCP in soils were in the range of 1.38-179 ng g(-1), while those in earthworms were 11.2-262 ng g(-1). The recoveries of the surrogate standard (trichlorophenol) ranged from 81.1% to 107%, demonstrating the merit of the method. (c) 2006 Published by Elsevier B.V.
WOS记录号	WOS:000238697800033
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/22858]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Liu, Y,Wen, B,Shan, XQ. Determination of pentachlorophenol in wastewater irrigated soils and incubated earthworms[J]. TALANTA,2006,69(5):1254-1259.
APA	Liu, Y,Wen, B,&Shan, XQ.(2006).Determination of pentachlorophenol in wastewater irrigated soils and incubated earthworms.TALANTA,69(5),1254-1259.
MLA	Liu, Y,et al."Determination of pentachlorophenol in wastewater irrigated soils and incubated earthworms".TALANTA 69.5(2006):1254-1259.