Home
Resources
Publications
Ionic Liquid Ethanol Sensor

Ionic Liquid Ethanol Sensor

Yuan Gee Lee, Tse-Chuan Chou

Biosens Bioelectron. 2004 Jul 30;20(1):33-40.

PMID: 15142574

Abstract:

Ionic liquids containing lithium methylsulfonyl group were prepared from the precursors poly(propylene glycol)-block-(ethylene glycol)-block-(propylene glycol)-bis(2-aminopropyl ether) with different molecular weight. These liquids revealed excellent electrical conductivity in the temperature range -25 to 85 degrees C. Also, they exhibited a high boiling temperature and hence a low vapor pressure in ambient condition. Additionally, they showed a high fluidity with their viscosities being comparative with that of water. To determine the sensitivity of an ethanol sensor by using these ionic liquids, these liquids were subjected into a sequential electrochemical tests with nickel electrodes which performed a high sensitivity for the ethanol sensor. It was found that only the derivative with low molecular weight could detect ethanol. Furthermore, a linear relationship between the response current and the concentration of ethanol was constructed. The detection limit was found to be 0.13% (v/v) and its response time was 336 s.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP9046100	Poly(propylene glycol) bis(2-aminopropyl ether)		9046-10-0	Price

As a specialist in analytical chemical Products, Alfa Chemistry offers consumers a wealth of raw materials and a full range of technologies and services.

QUICK LINKS

HEADQUARTERS

Tel:

Fax:

Email: