Saturday, October 29, 2011
Hall 1-2 (San Jose Convention Center)
The effect of the sampling conditions on chromatogram profiles was studied by varying the temperature and duration of the heating process of passive headspace concentration sampling (ASTM E1412). Test ignitable liquids were sampled using passive headspace concentration with activated charcoal at room temperature or 65°C. Samples were collected after heating for 16 or 72 hours of evaporation. Loss of light, volatile compounds were observed in the chromatogram of sample at a high temperature; loss of heavy volatile compounds was observed at a low temperature.