期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1217, 期 30, 页码 4898-4903出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2010.05.063
关键词
Stir bar sorptive extraction; Monolithic material; Poly(2-(methacryloyloxy)ethyltrimethylammonium chloride-co-divinylbenzene); Anionic exchange; Inorganic anion; Enrichment
资金
- National Nature Science Foundation of China [20805039]
- Youth Talent Foundation of Fujian Province [2006F3117]
- Start-up foundation of Xiamen University
- Innovation Foundation of Xiamen University [XDKJCX20063007]
A novel anionic exchange stir bar sorptive extraction (SBSE) coating based on poly(2(methacryloyloxy)ethyltrimethylammonium chloride-co-divinylbenzene) monolithic material for the extraction of inorganic anion was prepared. The effect of preparation conditions such as ratio of functional monomer to cross-linker, content of porogenic solvent on the extraction efficiencies were investigated in detailed. The monolithic material was characterized by elemental analysis, scanning electron microscopy and infrared spectroscopy. In order to investigate the extraction capacity of the new coating for inorganic anion, the new SBSE was combined with ionic chromatography with conductivity detection, Br(-), NO(3)(-), PO(4)(3-) and SO(4)(2-) were selected as detected solutes. Several extractive parameters, including pH value and ionic strength in sample matrix, desorption solvent, extraction and desorption time were optimized. The results showed that strongly ionic strength did not favor the extraction of anlaytes. Under the optimum experimental conditions, low detection limits (S/N = 3) and quantification limits (S/N = 10) of the proposed method for the target anions were achieved within the range of 0.92-2.62 and 3.03-9.25 mu g/L, respectively. The method also showed good linearity, simplicity, practicality and low cost for the extraction inorganic anions. Finally, the proposed method was successfully used to detect the two different trademarks of commercial purified water with satisfactory recovery in the range of 70.0-92.6%. To the best of our knowledge, this is the first to use SBSE to enrich inorganic anions. (C) 2010 Elsevier By. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据