doi:

DOI: 10.3724/SP.J.1096.2013.30446

Chinese Journal of Analytical Chemistry (分析化学) 2013/41:12 PP.1837-1843

Determination of Phthalates Esters in Edible Oil by High Performance Liquid Chromatography with Solid-membrane Extraction Based on Electrospun Nylon 6 Nanofibrous Membrane


Abstract:
A new method was developed for the simultaneous determination of five phthalate esters in edible oil samples by a combination of mat-based solid-phase extraction (SPE) with high performance liquid chromatography. The mat was composed of polyamide 6(PA6) nanofibers. Dimethyl phthalate (DMP), diethl phthalate (DEP), di-n-butyl phthalate (DBP), di-(2-ethylhexyl) phthalate (DEHP) and dioctyl phthalate (DOP) were successfully separated on a RP-C18 column. Under the optimum conditions, the detection limits of DMP, DEP, DBP, DEHP and DOP were 0.020-0.150 ng/mL. Spiked samples gave recoveries in the range from 85.92% to 101.03%, with relative standard deviations 5.3%-7.0%. The proposed method only required much lower consumption of organic solvent and sorbents, and gave lower detection limits than the methods in the literatures, and with comparative precision and accuracy.

Key words:Nylon 6 nanofiber membrane,Soild phase extraction,Phthalates esters,Edible oil,High performance liquid chromatography

ReleaseDate:2015-04-19 11:07:59



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