A Colorimetric Chemical Sensing Platform for Real-Time Monitoring of Indoor Formaldehyde

被引：23

作者：

Qin, Xingcai ^{[1
]}

Wang, Rui ^{[1
]}

Tsow, Francis ^{[1
]}

Forzani, Erica ^{[1
]}

Xian, Xiaojun ^{[1
]}

Tao, Nongjian ^{[1
]}

机构：

[1] Arizona State Univ, Biodesign Inst, Ctr Bioelect & Biosensors, Tempe, AZ 85004 USA

来源：

IEEE SENSORS JOURNAL | 2015年 / 15卷 / 03期

基金：

美国国家卫生研究院;

关键词：

Colorimetric sensor; formaldehyde; gas sensor; indoor air quality; GAS SENSORS; AIR; CHROMATOGRAPHY;

D O I：

10.1109/JSEN.2014.2364142

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Formaldehyde is one of the most important indoor air pollutants affecting human immune system, and causing various respiratory diseases and even certain cancers. Traditional formaldehyde detection technologies are bulky, expensive and difficult to maintain. Here, we report a colorimetric chemical sensing platform for fast (2 min) and sensitive detection (30 ppbv) of formaldehyde over a wide dynamic range (0-750 ppbv). The sensor can tolerate humidity variation from 5% to 90% and is immune of common interferents, such as CO2 (4%), SO2 (10 ppm), NO2 (125 ppbv), and O-3 (300 ppbv) in air. We also demonstrated continuous detection of formaldehyde on this sensing platform using disposable sensor chip.

引用

页码：1545 / 1551

页数：7

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