Record Display for the EPA National Library Catalog


Main Title Investigation of 2,4-Dinitrophenylhydrazine Impregnated Adsorbent Tubes for the Collection of Airborne Aldehydes.
Author Holdren, M. W. ; Smith, D. L. ; Russell, N. K. ;
CORP Author Battelle Columbus Div., OH.;Environmental Monitoring Systems Lab., Las Vegas, NV.
Year Published 1988
Report Number EPA-68-02-4127; EPA/600/4-88/022;
Stock Number PB88-220223
Additional Subjects Absorbers(Materials) ; Airborne detectors ; Aldehydes ; Sampling ; Adsorbents ; Test chambers ; Environment simulators ; Containers ; Chemical analysis ; Chromatographic analysis ; Acetonitrile ; Storage ; Air pollution detection ; Hydrazine/dinitro-phenyl ; Air sampling
Library Call Number Additional Info Location Last
NTIS  PB88-220223 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 53p
The objective of the study was to investigate the use of 2,4-dinitrophenylhydrazine (DNPH) impregnated adsorbents for sampling airborne aldehydes. Experimental results using a 17 cu m environmental chamber and various spiked amounts of aldehyde material (low ppb levels) showed that the DNPH coated cartridge and the DNPH/acetonitrile impinger methods gave equivalent results. Blank levels of the DNPH-coated cartridges were studied as a function of storage time using various containers and temperature conditions. Canisters pressurized with zero-grade nitrogen provided the best storage device. Lower blank levels were also obtained when the cartridges were stored at lower temperatures. Blank levels appear to equilibrate after six days of storage. To assure that quality data will be obtained, cartridges should be grouped according to batch number and blank levels should be determined prior to any field monitoring effort. Blank cartridge levels should be an order of magnitude lower than sample cartridge level. High performance liquid chromatography with UV detection proved to be a sensitive and stable analytical method for the DNPH derivatives.