High-Performance Liquid Chromatography (HPLC) conditions are described for separation of 2,4-dinitrophenylhydrazone (2,4-DNPH) derivatives of carbonyl compounds in a 10 cm long C18 reversed phase monolithic column. Using a linear gradient from 40 to 77% acetonitrile (acetonitrile-water system), the separation was achieved in about 10 min—a time significantly shorter than that obtained with a packed particles column. The method was applied for determination of formaldehyde and acetaldehyde in Brazilian sugar cane spirits. The linear dynamic range was between 30 and 600 µg L−1, and the detection limits were 8 and 4 µg L−1 for formaldehyde and acetaldehyde, respectively.
No takes yet. Share an insight, caveat, or question.
Penteado et al. (2008) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: