Environmental Laboratory
Automating DNPH Derivatisation for Aldehyde Analysis
Apr 02 2012
Author: Dan Carrier on behalf of Element Materials Technology Ltd - Element Cambridge Life Sciences
Airborne aldehydes and ketones are collected by passing air through a cartridge containing 2,4-dinitrophenylhydrazine (DNPH). The Supelco cartridge is silica based and pre-coated with DNPH. Carbonyl compounds react with the DNPH to form derivatives in the form of hydrazones which are immobilised on the cartridge. Figure 1 shows the derivatistion of aldehydes and ketones using DNPH. These compounds can be easily eluted from the cartridge with acetonitrile and analysed by HPLC with UV detection.
Digital Edition
AET 28.2 April/May 2024
May 2024
Business News - Teledyne Marine expands with the acquisition of Valeport - Signal partners with gas analysis experts in Korea Air Monitoring - Continuous Fine Particulate Emission Monitor...
View all digital editions
.jpg){kind=spacer}
Events
2024 Beijing International Coal & Mining Exhibition
Aug 07 2024 Beijing, China
IWA World Water Congress & Exhibition
Aug 11 2024 Toronto, Canada
Aug 25 2024 Stockholm, Sweden and online
Aug 28 2024 Gwangju, South Korea
Sep 03 2024 Mexico City, Mexico
