Investigation of 2,4-dinitrophenylhydrazine impregnated adsorbent tubes for the collection of airborne aldehydes
Demonstrated equivalency of SPC method & DNPH/acetonitrile
impinger method. Refers in materials list to SPC Silica , but actually
uses C18 cartridge. Incorrectly quotes manufacturer (Waters) as
identifying body & filter material as polypropylene (actually
crosslinked polyethylene). Some batches of C18 packing were shown to
contain traces of formaldehyde.