Quick, Easy, Cheap, Effective, Rugged, and Safe Method Followed by Ionic Liquid-Dispersive Liquid–Liquid Microextraction for the Determination of Trace Amount of Bisphenol A in Canned Foods
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- 作者：Mohammad Faraji ; Mahsa Noorani ; Banafshe Nasiri Sahneh
- 关键词：Bisphenol A ; QuEChERS method ; Ionic liquid ; dispersive liquid–liquid microextraction ; Canned foods ; High ; performance liquid chromatography
- 刊名：Food Analytical Methods
- 出版年：2017
- 出版时间：March 2017
- 年：2017
- 卷：10
- 期：3
- 页码：764-772
- 全文大小：
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Food Science; Chemistry/Food Science, general; Microbiology; Analytical Chemistry;
- 出版者：Springer US
- ISSN：1936-976X
- 卷排序：10
文摘
Combination of the quick, easy, cheap, effective, rugged, and safe (QuEChERS) method with ionic liquid-dispersive liquid–liquid microextraction (QuEChERS-IL-DLLME) was developed as an extraction methodology to determine bisphenol A (BPA) in various canned food samples prior to high-performance liquid chromatography ultraviolet detection (HPLC-UV). The potential variables affecting the microextraction recovery were considered in the optimization process. Obtained results showed that 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C6mim][Tf2N]) is a better extraction solvent compared with 1-hexyl-3-methylimidazolium hexafluorophosphate ([C6mim][PF6]) and is more compatible with RP-HPLC. Under the optimum conditions, the method yielded a linear calibration curve ranging from 1.0 to 500 μL−1 with a determination coefficient (R2) of 0.9993. Enrichment factor for BPA was 98, and limit of detection was 0.1 μg L−1. The relative standard deviation percent (RSD%) for the intra-day and inter-day extraction and determination at 2.0, 20, and 200 μg L−1 levels of BPA was less than 7.2 % (n = 6) and 9.7 % (n = 6), respectively. Finally, the proposed method was successfully applied for the extraction, cleanup, preconcentration, and determination of the BPA in different canned food samples, and satisfactory results were obtained (relative recovery ≥90 %).