## Abstract The classical derivatization method of carbonyls based on 2,4โdinitrophenylhydrazine (DNPH)โcoated silica cartridges was tested to concurrently measure lower carbonyls and carboxylic acids in air samples. The performance of these cartridges with respect to formic and acetic acids was ev
Derivatization and chromatographic determination of aldehydes in gaseous and air samples
โ Scribed by Harumitsu Nishikawa; Tadao Sakai
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 507 KB
- Volume
- 710
- Category
- Article
- ISSN
- 1873-3778
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๐ SIMILAR VOLUMES
A method is described for the determination of formic acid in air samples. Formic acid was collected on activated charcoal, desorbed with N,Ndimethylformamide and converted into p-bromophenacyl formate. The derivative was analyzed by high-performance liquid chromatography with UV detection (254 nm).
## Abstract This work reports the analysis of selected aldehydes in air samples using capillary electrophoresis (CE). The method is based on the reaction of aldehydes with 4โhydrazinobenzoic acid (HBA) to give the corresponding hydrazones with maximum absorbance at 290 nm. Under optimized CE condit