Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.snb.2012.07.067
Title: Liquid crystal based optical sensor for detection of vaporous butylamine in air
Authors: Ding, X.
Yang, K.-L. 
Keywords: Butylamine
Gas sensor
Liquid crystal
Optical sensor
Orientational transition
Issue Date: Oct-2012
Citation: Ding, X., Yang, K.-L. (2012-10). Liquid crystal based optical sensor for detection of vaporous butylamine in air. Sensors and Actuators, B: Chemical 173 : 607-613. ScholarBank@NUS Repository. https://doi.org/10.1016/j.snb.2012.07.067
Abstract: A liquid crystal (LC)-based optical sensor has been developed to detect vaporous butylamine in air. This LC sensor doped with lauric aldehyde (LA) shows fast and distinct bright-to-dark optical response to butylamine vapor. For example, when the LA doping concentration is 0.1 wt%, the LC shows a rapid bright-to-dark optical response within 2 min after it is exposed to 10 ppmv of butylamine. This optical response is attributed to an orientational transition of LC triggered by a reaction between LA and butylamine. This LC sensor also exhibits reversibility after the sensor is exposed to open air. In addition to primary amines (such as butylamine and octylamine), this LC-based sensor responds to secondary amines (such as diisopropylamine), but the detection limit is 200 ppmv, which is much higher than butylamine. © 2012 Elsevier B.V.
Source Title: Sensors and Actuators, B: Chemical
URI: http://scholarbank.nus.edu.sg/handle/10635/89336
ISSN: 09254005
DOI: 10.1016/j.snb.2012.07.067
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

24
checked on Sep 17, 2018

WEB OF SCIENCETM
Citations

27
checked on Sep 17, 2018

Page view(s)

35
checked on Aug 31, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.