Preparation of PDMS-coated microspheres by sol-gel method for sorptive extraction of PAHs |
| |
Authors: | Chang Guang Yang Xiang Juan Ji Xiao Zheng Lan |
| |
Institution: | College of Chemistry and Materials Science, Shandong Agricultural University, Taian 271018, China |
| |
Abstract: | In this paper, a novel SPME mode, PDMS-coated solid glass microspheres (SGMs), were prepared by sol-gel method. Using homemade thermal desorption unit coupled with CGC-FID, six PAHs as model analytes, the performance of the new mode was characterized. The new extractive phase exhibited high thermal stability and satisfactory extraction capability. The detection limits were 0.01-0.045 ng/mL, and the linearity was from 0.5 ng/mL to 96 ng/mL. The R.S.D.s of repeatability for retention time and peak area were all within 0.074% and 6.7%, respectively. The recoveries of the PAHs were 78-127% from the sarnples taken from river water. |
| |
Keywords: | Sorptive extraction PDMS-coated microspheres Sol-gel PAHs |
本文献已被 CNKI 维普 万方数据 ScienceDirect 等数据库收录! |
| 点击此处可从《中国化学快报》浏览原始摘要信息 |
| 点击此处可从《中国化学快报》下载免费的PDF全文 |
|