| 壳聚糖/nano-TiO2/TiO2 sol-gel固相微萃取膜的制备及其应用 |
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| 引用本文： | 金会会,范支柬,赵广超. 壳聚糖/nano-TiO2/TiO2 sol-gel固相微萃取膜的制备及其应用[J]. 安徽师范大学学报(自然科学版), 2009, 32(3): 244-248 |
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| 作者姓名： | 金会会 范支柬 赵广超 |
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| 作者单位： | 安徽师范大学,环境科学学院,安徽,芜湖,241003;安徽师范大学,环境科学学院,安徽,芜湖,241003;安徽师范大学,环境科学学院,安徽,芜湖,241003 |
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| 基金项目： | 国家自然科学基金，安徽师范大学创新团队资助计划 |
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| 摘 要： | 以壳聚糖与钛酸丁酯为原料,通过溶胶-凝胶的方法,合成了壳聚糖/TiO2溶胶,采用交替涂布壳聚糖/TiO2溶胶和纳米TiO2的乙醇溶液于载玻片上,制得了壳聚糖/nano-TiO2/TiO2 sol-gel固相微萃取膜.以6种有机磷农药为分析对象,采用气相色谱法考察了固相微萃取膜的萃取特性.在最优化条件下,有机磷农药的检出限达4.4-41 ng/L,相对标准偏差小于6.5%.该方法用于环境水样中有机磷农药的测定,获得良好的结果.
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| 关 键 词： | 固相微萃取膜 溶胶-凝胶 有机磷农药 壳聚糖 二氧化钛 |
Preparation of Chitosan/nano-TiO2/TiO2 sol-gel Solid Phase Microextraction Membrane and Its Application |
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| JIN Hui-hui,FANG Zhi-jian,ZHAO Guang-chao. Preparation of Chitosan/nano-TiO2/TiO2 sol-gel Solid Phase Microextraction Membrane and Its Application[J]. Journal of Anhui Normal University(Natural Science Edition), 2009, 32(3): 244-248 |
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| Authors: | JIN Hui-hui FANG Zhi-jian ZHAO Guang-chao |
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| Affiliation: | JIN Hui-hui,FANG Zhi-jian,ZHAO Guang-chao (College of Environmental Science,Anhui Normal University,Wuhu 241003,China) |
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| Abstract: | Chitosan/nano-TiO2/TiO2sol-gel SPME film was prepared by coating TiO2 dispersed in ethanol and chitosan/TiO2 sol which was synthesized by sol-gel method with chitosan and tetrabutyl titanate(TBT) on a piece of glass plate.The extraction properties of the proposed film were evaluated with gas chromatogralphy through six OPPs and the experimental conditions were optimized.Under the optimal conditions,the limit of detection of the method was in the range of 4.1-44 ng L-1 for analysis of OPPs from water samples... |
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| Keywords: | solid phase microextraction membrane sol-gel OPPs chitosan TiO2 |
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