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Bis(trifluoromethylsulfonyl)imide-based Frozen Ionic Liquid for the Hollow-Fiber Solid-Phase Microextraction of Dichlorodiphenyltrichloroethane and Its Main Metabolites

Bis(trifluoromethylsulfonyl)imide-based Frozen Ionic Liquid for the Hollow-Fiber Solid-Phase Microextraction of Dichlorodiphenyltrichloroethane and Its Main Metabolites

Long Pang, Peijie Yang, Rong Pang, Shunyi Li

J Sep Sci. 2017 Aug;40(16):3311-3317.

PMID: 28618176

Abstract:

1-Hexadecyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide is a solid-phase ionic organic material under ambient temperature and is considered as a kind of "frozen" ionic liquid. Because of their solid-state and ultra-hydrophobicity, "frozen" ionic liquids are able to be confined in the pores of hollow fiber, based on which a simple method was developed for the hollow-fiber solid-phase microextraction of dichlorodiphenyltrichloroethane and its main metabolites. Under optimized conditions, the proposed method results in good linearity (R2 > 0.9965) over the range of 0.5-50 μg/L, with low limits of detection and quantification in the range of 0.33-0.38 and 1.00-1.25 μg/L, respectively. Intra- and interday precisions evaluated by relative standard deviation were 3-6 and 1-6%, respectively. The spiked recoveries of dichlorodiphenyltrichloroethane and its main metabolites from real water samples were in the range of 64-113 and 79-112%, respectively, at two different concentration levels. The results suggest that "frozen" ionic liquids are promising for use as a class of novel sorbents.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP1017254635	1,3-Dimethoxy-2-methylimidazolium bis(trifluoromethylsulfonyl)imide		1017254-63-5	Price

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