Space Grant Consortium - University of Wisconsin - Green Bay

Figure 1 shows peak areas for offgassing from 107999 as a function of time when a significant
number of integrated peaks are present.
Discussion
Figure 1: Peak Areas Over Time
The response factors calculated using the new data were different from the previous response
factors. There was no trend as to whether they were higher or lower as they varied between
components. Since these values were calculated based on standard solutions this would suggest
these values would have high accuracy. For a lot of compounds from offgassing there were only
default response factors which have little accuracy, so new calculated response factors give a
better idea of what they should be.
When the Mixes for response factors were placed in separate chambers and baked, the peak areas
were inconsistent due to different chambers having different seals. Unequal seals were expected
but the extent to which chambers were different was unexpected. To get more consistent results
a single chamber had to be used for each different test. While this did allow more accurate
results to be found the drawback was the time involved with running tests one at a time. Since
the seals were unequal, there was no way around this problem, which was important to discover
for future experimentation.
When samples of 108193 and Mix 1 were run, it was clear that 108193 did not offgas well. The
largest peak detected on the Autosystem GC/FID was the injection peak, followed by the column
peak. Injection and column peaks were the only peaks seen on the Agilent 6890 GC/FID. When
the sample was run on the Incos GC-MS, there was no flat baseline and only a few small peaks
were observed, consistent with the GC results. Spectra of Mix 1 showed strong peaks
corresponding to the components Mix 1, and the spectra of the Mix and 108193 only showed
peaks corresponding to Mix 1. Any interactions between Mix 1 and 108193 were too small to
identify.
Both 108053 and Mix 4 offgasssing produced dichlorobenzene, and for 108053, it was the only
quantifiable offgas. However, when they were baked together in a chamber and run on GCMS
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