Polymer-grafted QCM chemical sensor and application to heavy metalions real time detection.
Polymer-grafted QCM chemical sensor and application to heavy metalions real time detection.
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DOI：
10.1016/j.snb.2011.01.003
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发表时间：
2011-07-20
影响因子：
8.4
通讯作者：
Bontempi, Elza
中科院分区：
文献类型：
--
作者：
Sartore, Luciana;Barbaglio, Marzia;Borgese, Laura;Bontempi, Elza
研制了一种适用于环境监测的流动式石英晶体微天平(QCM)化学传感器，用于监测水溶液中的重金属离子。该传感器基于金属离子在多功能聚合物修饰金电极上的表面络合作用，在9 MHz AT切石英谐振器上起到QCM的作用。开发了新的工艺，使表面修饰的金电极具有较高的重金属离子络合能力。这些聚合物接枝的QCM传感器可以通过与聚合物中的官能团络合，选择性地吸附溶液中的重金属离子，如铜、铅、铬和镉，浓度范围从0.01到1000 ppm。天然水中通常存在的阳离子不会干扰重金属的检测。用X射线反射率(XRR)和全反射X射线荧光(TXRF)对改性前后的金表面进行了表征，验证了选择性结合和去除金属离子的可能性。
A flow type quartz crystal microbalance (QCM) chemical sensor was developed for monitoring of heavy metal ions in aqueous solutions (that is suitable for environmental monitoring). The sensor is based upon surface chelation of the metal ions at multifunctional polymer modified gold electrodes on 9 MHz AT-cut quartz resonators, functioning as a QCM. New processes have been developed which enable to obtain surface-modified gold electrodes with high heavy metal ions complexing ability. These polymer grafted QCM sensors can selectively adsorb heavy metal ions, such as copper lead chrome and cadmium, from solution over a wide range from 0.01 to 1000 ppm concentration by complexation with functional groups in the polymers. Cations typically present in natural water did not interfere with the detection of heavy metals. X-Ray Reflectivity (XRR) and Total Reflection X-ray Fluorescence (TXRF) were carried out to characterise the unmodified and modified gold surfaces as well as to verify the possibility to selectively bond and remove metal ions.
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影响因子：
12.6
作者：
Casilli, S;Malitesta, C;Valli, L
通讯作者：
Valli, L
影响因子：
6.1
作者：
Colombi, P.;Agnihotri, D. K.;Wiemer, C.
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影响因子：
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影响因子：
14
作者：
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通讯作者：
VERONESE, FM
影响因子：
3
作者：
Sartore, L;Penco, M;D'Amore, A
通讯作者：
D'Amore, A