National Institute for Occupational Safety and Health, NIOSH Manual of Analytical Methods… (1994)
“ Inject 1-μL sample aliquot. NOTE: If the amount of valeraldehyde oxazolidine in the aliquot exceeds the capacity of the column, dilute with toluene, reanalyze and apply the appropriate dilution factor in calculations. ”
National Institute for Occupational Safety and Health, NIOSH Manual of Analytical Methods… (1994)
“ Add known amounts of valeraldehyde oxazolidine stock solution to toluene in 10-mL volumetric flasks and dilute to the mark. b. Analyze (steps 12 and 13) with samples and blanks for qualitative identification of derivative peaks. Calibrate daily with a least six working standards prepared in triplicate covering the range 2 to 3900 μg valeraldehyde per sample. a. Weigh 120-mg portions of unused sorbent from media blanks into vials. b. Add aliquots (1 to 10 μL) of valeraldehyde stock solution or dilutions thereof to the sorbent. ”
National Institute for Occupational Safety and Health, NIOSH Manual of Analytical Methods… (1994)
“ METHOD 2536, Issue 2, dated 15 August 1994 - Page 4 of 5 EVALUATION OF METHOD: Atmospheres were generated by injection of valeraldehyde with a syringe pump into a heated block injector and flash vaporizer into a stream of air at 80% ± 5% RH flowing at a fixed rate. The generator and sampling manifold system have been described previously [5] . ”
