SELECTIVE CHEMICAL SENSOR BASED ON MOLECULARLY IMPRINTED POLYMER TO DETECT ISOBORNEOL IN AQUEOUS SAMPLES

被引：0
|
作者：
Braga, Guilherme S. [1 ,2 ]
Lieberzeit, Peter A. [2 ]
Fonseca, Fernando J. [1 ]
机构：
[1] Univ Sao Paulo, Dept Elect Syst Engn, Sao Paulo, Brazil
[2] Univ Vienna, Dept Phys Chem, Vienna, Austria
来源：
2017 ICOCS/IEEE INTERNATIONAL SYMPOSIUM ON OLFACTION AND ELECTRONIC NOSE (ISOEN 2017) | 2017年
基金：
巴西圣保罗研究基金会;
关键词：
Molecularly imprinted polymer; quartz crystal microbalance; isoborneol; 2-methylisoborneol; camphor; aqueous samples;
D O I：
暂无
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
Herein we report the evaluation of selectivity of previously developed chemical sensors based on molecularly imprinted polymers (MIP) and quartz crystal microbalance (QCM) to detect isoborneol (ISO) in aqueous samples. They exhibited high specificity when aqueous samples tainted with interfering molecules, namely 2-methylisoborneol (MIB) and camphor, were analyzed. MIP response for ISO (4 mM) was 2 times higher than for MIB (4 mM) and 4 times higher than for camphor (4 mM). Their response scales linearly with isoborneol concentration and exhibits sensitivity of -245.26 Hz mM(-1) cm(-2) at the active area, with a gradient of -47 Hz mM(-1). Moreover, MIP based sensor theoretical detection limit (LoD) is 0.52 mM.
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页数：3
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