色谱2013，Vol.31Issue(3)：254-259,6.DOI:10.3724/SP.J.1123.2012.10033
亚临界水萃取-高效液相色谱法测定聚碳酸酯水杯中双酚A和苯酚的迁移量
Simultaneous determination of the migrations of bisphenol A and phenol in polycarbonate bottles based on subcritical water extraction and high performance liquid chromatography
摘要
Abstract
A new method was established for the simultaneous determination of the migration amounts of bisphenol A (BPA) and phenol from polycarbonate (PC) bottles based on subcritical water extraction (SWE) and high performance liquid chromatography. The optimum extraction conditions included an extraction temperature of 120 ℃, a pressure of 6. 89 MPa (1 000 psi), a static extraction time of 1 h and one cycle. Under the conditions, the migration amounts of the BPA ranged from 6. 81 to 11. 16 μg/g in 11 samples. Phenol was not detectable in 5 samples, and in other ones the migration amounts of phenol varied in the range of 3. 25 -6. 08 μg/g. The traditional soaking extraction experiments showed that PC was subjected to weak hydrolysis after long-time leaching. The BPA and phenol were separated in 8 min. Good linearities were obtained in the range of 0. 05 - 20 mg/L for BPA and 0. 02 - 20 mg/L for phenol (r > 0. 999 7). The limits of detection were 7. 6 μg/L for BPA and 2. 0 μg/L for phenol. Intra-day and inter-day repeatabilities (expressed as RSD) were less than 5. 21% and 11. 63%, respectively. Compared with traditional water soaking extraction, the extraction efficiencies increased 49 - 106 times using this developed SWE method. The procedure is simple, rapid and environment friendly, and can be utilized to determine the migration amounts of BPA and phenol in PC bottles.关键词
亚临界水萃取/高效液相色谱/双酚A/苯酚/聚碳酸酯水杯Key words
subcritical water extraction ( SWE) / high performance liquid chromatography (HPLC)/ bisphenol A/ phenol/ polycarbonate (PC) bottles分类
化学化工引用本文复制引用
白玮玮,刘书慧,曹江平,范盈盈,解启龙..亚临界水萃取-高效液相色谱法测定聚碳酸酯水杯中双酚A和苯酚的迁移量[J].色谱,2013,31(3):254-259,6.基金项目
西北农林科技大学人才专项项目(Z111021005). （Z111021005）
