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1966227 
Journal Article 
DETERMINATION OF CARBONYL-COMPOUNDS IN AIR BY HPLC USING ONLINE ANALYZED MICROCARTRIDGES, FLUORESCENCE AND CHEMILUMINESCENCE DETECTION 
Nondek, L; Milofsky, RE; Birks, JW 
1991 
Yes 
Chromatographia
ISSN: 0009-5893
EISSN: 1612-1112 
BIOSIS/91/28770 
32 
1-2 
33-39 
English 
WOS:A1991FZ88600006 
Sensitive and selective detection of dansylhydrazones of atmospheric carbonyl compounds (aldehydes and ketones) can be achieved using high performance liquid chromatography (HPLC) with fluorescence or chemiluminescence detection. The carbonyl compounds are derivatized by drawing air through small glass cartridges packed with porous glass particles impregnated with dansylhydrazine. After sampling, the contents of the cartridges are analyzed on-line by using a small plug of water (200-mu-L) to transfer and focus the hydrazone derivatives at the head of a HPLC column. Greatly increased sensitivity over traditional methods derives from 1) analysis of the entire contents of the sampling cartridge, and 2) detection by fluorescence or peroxyoxalate chemilum-inescence. Results are compared for photo-initiated and H2O2-initiated peroxyoxalate chemiluminescence. This novel and practical system enables the detection of sub-ppbv concentrations of formaldehyde, acetaldehyde, acetone and higher carbonyls in air using relatively short sampling times. 
COLUMN LIQUID CHROMATOGRAPHY; AIR ANALYSIS; DANSYLHYDRAZONES OF CARBONYL COMPOUNDS; CHEMILUMINESCENCE; FLUORESCENCE