安徽师范大学学报（自然科学版）
安徽師範大學學報（自然科學版）
안휘사범대학학보（자연과학판）
JOURNAL OF ANHUI NORMAL UNIVERSITY （NATURAL SCIENCE）
2009年
3期
244-248
,共5页
固相微萃取膜%溶胶-凝胶%有机磷农药%壳聚糖%二氧化钛
固相微萃取膜%溶膠-凝膠%有機燐農藥%殼聚糖%二氧化鈦
고상미췌취막%용효-응효%유궤린농약%각취당%이양화태
solid phase microextraction membrane%sol-gel%OPPs%chitosan%TiO2
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.
以殼聚糖與鈦痠丁酯為原料,通過溶膠-凝膠的方法,閤成瞭殼聚糖/TiO2溶膠,採用交替塗佈殼聚糖/TiO2溶膠和納米TiO2的乙醇溶液于載玻片上,製得瞭殼聚糖/nano-TiO2/TiO2 sol-gel固相微萃取膜.以6種有機燐農藥為分析對象,採用氣相色譜法攷察瞭固相微萃取膜的萃取特性.在最優化條件下,有機燐農藥的檢齣限達4.4-41 ng/L,相對標準偏差小于6.5%.該方法用于環境水樣中有機燐農藥的測定,穫得良好的結果.
이각취당여태산정지위원료,통과용효-응효적방법,합성료각취당/TiO2용효,채용교체도포각취당/TiO2용효화납미TiO2적을순용액우재파편상,제득료각취당/nano-TiO2/TiO2 sol-gel고상미췌취막.이6충유궤린농약위분석대상,채용기상색보법고찰료고상미췌취막적췌취특성.재최우화조건하,유궤린농약적검출한체4.4-41 ng/L,상대표준편차소우6.5%.해방법용우배경수양중유궤린농약적측정,획득량호적결과.
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 and RSD is less than 6.5%. Good results were obtained when the method was used to monitor residual OPPs in environmental water.
