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ANALYTICAL CHEMISTRY, VOL. 51, NO. 11, SEPTEMBER 1979
analyses of volatile halocarbons.
Table X . Purge and Trap Method Compared with Headspace Method
LITERATURE CITED
results, ppb sample
CHC1,
CC1,
C,HCl,
C,CL
1. purge-trap
1.6 1.1 15.0
25.9 23. 7
1.5
14.8
1.2 4.8
17.9
headspace 2. purge-trap headspace 3. purge-trap headspace 4.purge-trap headspace 5. purge-trap headspace 6 . purge-trap headspace
12.9 0.9 0.7 0.02
