High-performance liquid chromatography with conductimetric detection of perfluorocarboxylic acids and perfluorosulfonates
High-performance liquid chromatography with conductimetric detection of perfluorocarboxylic acids and perfluorosulfonates
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DOI：
10.1016/j.chemosphere.2004.05.028
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发表时间：
2004-10-01
期刊：
影响因子：
8.8
通讯作者：
Kobayashi, Y
中科院分区：
文献类型：
--
作者：
Hori, H;Hayakawa, E;Kobayashi, Y
利用高效液相色谱-电导检测技术，成功地建立了一种快速、简便地分离和测定各种对环境有害的全氟羧酸和全氟磺酸盐的方法，用于这些化合物的生产和加工现场的产品和废物管理。具有C-3-C-8全氟烷基团的化合物被用Tosoh TSKel Super-ODS柱和流动相分离，流动相由甲醇和NaH_2PO_4水溶液按不同比例混合而成。该方法的最佳检出限为87109.12~0.66 mg L(-1)(Ppm)，线性范围为0.0 5 mg L(-1)。将该方法与固相萃取浓缩样品相结合，可对含C-4-C-8全氟烷基团的化合物进行约50杯L(-1)的测定。该方法成功地用于监测全氟甲酸n-C4F9COOH在光催化剂作用下的人工分解过程。(C)2004爱思唯尔有限公司。保留所有权利。
A rapid and simple method for separating and determining various environmentally harmful perfluorocarboxylic acids and perfluorosulfonates was successfully developed using high-performance liquid chromatography with conductimetric detection, for product and waste management of these compounds at manufacturing and processing sites. Compounds having C-3-C-8 perfluoroalkyl groups were separated using a Tosoh TSKgel Super-ODS column and a mobile phase consisting of a mixture of methanol and aqueous NaH2PO4 at several mixing ratios. The best detection limits for the compounds ranged from 0.12 to 0.66 mg l(-1) (ppm), and linear calibration graphs were obtained up to 87109 mg l(-1). The combination of this method with concentration of the sample by solid-phase extraction with cartridges based on styrene-divinylbenzene-copolymer enabled the determination of approximate to 50 mug l(-1) (ppb) for compounds with C-4-C-8 perfluoroalkyl groups. This method was successfully used to monitor the artificial decomposition of the perfluorocarboxylic acid n-C4F9COOH induced by a photocatalyst. (C) 2004 Elsevier Ltd. All rights reserved.