Environ. Sci. Technol. 1990, 24, 1482-1485
Measurement of Sub-Parts-per-Billion Levels of Carbonyl Compounds in Marine Air by a Simple Cartridge Trapping Procedure Followed by Liquid Chromatography Xlanliang thout and Kenneth Mopper * A
University of Miami, Rosenstiel School of Marine and Atmospheric Science, 4600 Rickenbacker Causeway, Miami, Florida 33 149
w Carbonyl compounds in clean marine air were trapped onto 2,4-dinitrophenylhydrazine-(DNPH-) coated cartridges, and their hydrazone derivatives were separated by HPLC and detected by UV absorbance. More than 20 carbonyl compounds were isolated from marine air with >92% collection efficiency. The technique employs a highly effective reagent purification procedure, which results in much lower blanks compared to previously reported trapping techniques for carbonyl compounds. Blanks were routinely
