Hybrid separation and detection device for analysis of benzene, toluene, ethylbenzene, and xylenes in complex samples.

Hybrid separation and detection device for analysis of benzene, toluene, ethylbenzene, and xylenes in complex samples.
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DOI:
10.1021/ac9015769
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发表时间:
2009-11-01
影响因子:
7.4
通讯作者:
Tao N
Tao N
中科院分区:
化学1区
文献类型:
--
作者:
Iglesias RA;Tsow F;Wang R;Forzani ES;Tao N

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我们提出了一个混合系统,用于快速检测和分析苯,甲苯,二甲苯和二甲苯(BTEX)。该系统结合了选择性和敏感的传感元件与快速和小型化的色谱分离方法。传感元件是用选择性分子印迹聚合物修饰的微制造石英晶体音叉阵列,分离方法使用优化的短柱。传感元件的高灵敏度和选择性以及分离的帮助提供了对含有高浓度干扰剂的真实的样品中的BTEX的快速检测和分析,而无需预浓缩或加热柱。混合装置的低成本、低功耗和小尺寸特别适合于职业健康、工业安全和流行病学应用。
We present a hybrid system for rapid detection and analysis of benzene, toluene, ethylbenzene, and xylenes (BTEX). The system combines selective and sensitive sensing elements with a fast and miniaturized chromatographic separation method. The sensing elements are an array of microfabricated quartz crystal tuning forks modified with selective molecularly imprinted polymers, and the separation method uses optimized short columns. The high sensitivity and selectivity of the sensing elements together with the help of the separation provides fast detection and analysis of BTEX in real samples containing highly concentrated interfering agents without preconcentration or heating of columns. The low cost, low power consumption, and small size of the hybrid device are particularly suitable for occupational health, industrial safety, and epidemiological applications.
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