Multianalyte chemical identification and quantitation using a single radio frequency identification sensor
Multianalyte chemical identification and quantitation using a single radio frequency identification sensor
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DOI：
10.1021/ac061748o
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发表时间：
2007-01-01
影响因子：
7.4
通讯作者：
Morris, William G.
中科院分区：
文献类型：
--
作者：
Potyrallo, Radislav A.;Morris, William G.
我们展示了一种方法，用于多分析物的化学识别和定量使用一个单一的传统的射频识别（RFID）标签，已被改编为化学传感。与使用RFID传感器的其他方法不同，其中特殊标签的设计成本要高得多，我们使用传统的RFID标签，并在其上涂上化学敏感膜。作为一个例子，我们展示了几个蒸汽的工业，健康，执法和安全利益（乙醇，甲醇，乙腈，水蒸气）与一个单一的13.56 MHz的RFID标签涂有固体聚合物电解质传感膜的检测。通过同时测量来自这样的RFID传感器的复阻抗的几个参数，并应用多元统计分析方法，我们能够识别和量化几种感兴趣的蒸汽。通过仔细选择敏感膜和测量条件，我们在空气中实现了十亿分之一的蒸汽检测极限。这些RFID传感器是非常有吸引力的无处不在的多分析物分布式传感器网络。
We demonstrate an approach for multianalyte chemical identification and quantitation using a single conventional radio frequency identification (RFID) tag that has been adapted for chemical sensing. Unlike other approaches of using RFID sensors, where a special tag should be designed at a much higher cost, we utilize a conventional RFID tag and coat it with a chemically sensitive film. As an example, we demonstrate detection of several vapors of industrial, health, law enforcement, and security interest (ethanol, methanol, acetonitrile, water vapors) with a single 13.56-MHz RFID tag coated with a solid polymer electrolyte sensing film. By measuring simultaneously several parameters of the complex impedance from such an RFID sensor and applying multivariate statistical analysis methods, we were able to identify and quantify several vapors of interest. With a careful selection of the sensing film and measurement conditions, we achieved parts-per-billion vapor detection limits in air. These RFID sensors are very attractive as ubiquitous multianalyte distributed sensor networks.