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A Prototype of Electrochemical Sensor for Measurements of Carbonyl Compounds in Air

✍ Scribed by Jacek Gębicki

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
254 KB
Volume
23
Category
Article
ISSN
1040-0397

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✦ Synopsis

Abstract

The paper presents the results of investigation on a prototype sensor for measurements of benzaldehyde and formaldehyde in air. Sensitivity, limit of quantification and coefficient of selectivity of the sensor have been determined as a function of membrane thickness and electrode type using square wave voltammetry (SWV) technique. The working and counter electrodes were made of platinum and gold. Ionic liquids 1‐hexyl, 3‐methylimidazolium bis(trifluoromethanesulfonyl)imide constituted an internal electrolyte. Polydimethylsiloxane (PDMS) membrane separated gaseous medium from the electrolyte.

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## Abstract The analysis of carbonyls in ambient air has received a great deal of scientific attention with the advancement of analytical techniques and increased demand for the build‐up of its data base. In this review article, we have attempted to provide some insight into the relative performanc