|
|||||
|
|
| 溶胶-凝胶法制备C18固相微萃取头及其在有机氯农药残留检测中的应用 | |
| 引用本文： | 陈丽梅,赵孟彬,刘虎威. 溶胶-凝胶法制备C18固相微萃取头及其在有机氯农药残留检测中的应用[J]. 分析测试学报, 2011, 30(8): 835-840. DOI: 10.3969/j.issn.1004-4957.2011.08.001 |
| 作者姓名： | 陈丽梅 赵孟彬 刘虎威 |
| 作者单位： | 1. 北京大学化学与分子工程学院,北京100871;北京锦绣大地农业股份有限公司,北京100049 2. 北京锦绣大地农业股份有限公司,北京,100049 3. 北京大学化学与分子工程学院,北京,100871 |
| 基金项目： | 北京中关村科技园区海淀园博士后工作专项资助项目 |
| 摘 要： | 以十八烷基三乙氧基硅烷(C18-TEOS)、四乙氧基硅烷(TEOS)、乙醇、盐和水酸为原料,采用溶胶-凝胶法制备了十八烷基(C18)固相微萃取头,利用所制备萃取头实现了水样中11种有机氯农药的检测。在优化条件下,使用该萃取头对有机氯农药(OCPs)萃取后用气相色谱/电子捕获检测器(GC/ECD)测定,检出限为0.01～0.24μg/L,相对标准偏差为3.0%～13.3%。该方法用于鱼塘水、湖水及自来水中OCPs的检测,结果满意。所制备的萃取头在不同溶剂中浸泡后,对有机氯农药的萃取性能无明显变化。使用50次后,C18萃取头的萃取性能未变化。结果表明,所制备的C18固相微萃取头涂层均匀,具有多孔结构,稳定性高,有很好的实用价值。 |
| 关 键 词： | 固相微萃取 十八烷基 溶胶-凝胶 有机氯农药 气相色谱 |
Preparation of n-Octadecyl Solid-phase Microextraction Fiber and Its Applications in Detection of Organochlorine Pesticide Residues in Water |
|
| CHEN Li-mei,ZHAO Meng-bin,LIU Hu-wei. Preparation of n-Octadecyl Solid-phase Microextraction Fiber and Its Applications in Detection of Organochlorine Pesticide Residues in Water[J]. Journal of Instrumental Analysis, 2011, 30(8): 835-840. DOI: 10.3969/j.issn.1004-4957.2011.08.001 | |
| Authors: | CHEN Li-mei ZHAO Meng-bin LIU Hu-wei |
| Affiliation: | CHEN Li-mei1,2,ZHAO Meng-bin2,LIU Hu-wei1 (1.College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,China,2.Beijing Glorious Land Agricultural Company Limited,Beijing 100049,China) |
| Abstract: | A n-octadecyl(C18) solid microextraction fiber was prepared by sol-gel technology,and used in the extraction of organochlorine pesticides in water samples.The sol-gel solution was prepared by mixing appropriate amount of n-octadecyltriethoxysilan(C18-TEOS),tetraethoxysilane(TEOS),ethanol,hydrochloric acid and water.Then the n-octadecyl solid phase microextraction fiber was obtained from the polymerization of the sol-gel solution on the surface of the treated fused-silica fiber.Under the optimum conditions,t... |
| Keywords: | solid microextraction octadecyl sol-gel organochlorine pesticide gas chromatography |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《分析测试学报》浏览原始摘要信息 | |
| 点击此处可从《分析测试学报》下载全文 | |