NDLI: Rapid and sensitive detection of formaldehyde based on AC electrokinetic effects

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The Journal of Engineering

Rapid and sensitive detection of formaldehyde based on AC electrokinetic effects

Content Provider	IET Digital Library
Author	Zhang, Jian Liu, Xin Wang, Jian Wu, Jayne Wang, Chunchang Qi, Haochen Liang, Huaguo
Abstract	Formaldehyde is a toxic water-soluble organic matter. Its detection methods and detection limit have been attracting more attentions. An AC electrokinetic (ACEK)-enhanced capacitive sensing method for rapid detection of trace formaldehyde in liquid is presented using commercial microelectrode chips. By this method, a detection limit is achieved as low as 0.01 ppm (μg/ml) within a 60 s response time. It is proved that the trace amount of formaldehyde in common solvents can also be effectively detected. As a complement, the capacitance change rate dependence on testing voltage and frequency is investigated. Compared to other existing detection methods, this ACEK-based capacitive method is a low cost, high sensitive and fast detection means, which shows a great application prospect in industry and research such as food safety and specimen cleaning.
Starting Page	63
Ending Page	68
Page Count	6
Volume Number	13
e-ISSN	17500443
Issue Number	Issue 1, Jan (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/mnl/13/1
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/mnl.2017.0289
Journal	Micro & Nano Letters
Publisher Date	2018-01-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	AC Electrokinetic Effects ACEK-based Capacitive Method Capacitance Change Rate Capacitive Sensor Commercial Microelectrode Chips Electrical Instruments And Technique Enhanced Capacitive Sensing Method Formaldehyde Detection Microelectrodes Organic Compound Sensing And Detecting Device Sensing Device And Transducers Toxic Water-soluble Organic Matter Trace Formaldehyde
Content Type	Text
Resource Type	Article

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