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Citation: JIN Xiangzi, KAW Han Yeong, WANG Zhao, ZOU Yilin, LI Wanying, GUO Ziyu, SUN Huaze, ZHAO Jinhua, LI Donghao. One-step extraction method of phthalate esters in vegetable oils[J]. Chinese Journal of Chromatography, ;2018, 36(2): 173-178. doi: 10.3724/SP.J.1123.2017.09029 shu

One-step extraction method of phthalate esters in vegetable oils

Department of Chemistry, Yanbian University, Key Laboratory of Natural Resources of the Changbai Mountain and Functional Molecules, Ministry of Education, Yanji 133002, China

Received Date: 18 September 2017

In order to develop a fast investigation method for phthalate esters (PAEs) from vegetable oils, a gas-liquid micro-extraction (GLME) technique that combined with GC-MS was established. A vegetable oil sample (0.1 g) was directly added into the GLME device. The integrated process of extraction, clean-up, and concentration of PAEs was completed within 5 min. Internal standard method was applied to ensure the accuracy of the results. Soybean oil, blend oil, olive oil, and sesame oil were spiked with 200 μg/kg of a mixed 15 PAEs standard, and the ranges of the recoveries and RSDs were between 60.0% to 112.3% and 0.9% to 28.4%, respectively. Compared with some traditional sample pretreatment methods such as liquid-liquid extraction, liquid-liquid micro-extraction, gel permeation chromatography, this method is simple and fast, with high accuracy, good repeatability and low matrix effect. This study verified the suitability of the GLME method for field detection of food products in food safety sector and exhibits great significance for the completion of food safety system in China.
- gas-liquid micro-extraction (GLME),
- gas chromatography-mass spectrometry (GC-MS),
- phthalate esters (PAEs),
- vegetable oils
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