A. mixture of known standards (Analabs, Inc.) 
iVc * 149 
C. 3 viL injection from 200 uL total extract 
from 5.0 g of dry Attapulgite matrix 
m/c = 149 
JL 
A 
A 
D-10-Anthracene 
\ 
D. 
main pack corresponds to 6.0 mg of internal 
standard (D-10 anthracene) 
m/c = sum of 188 (internal std.), 57, 149, 
202, 228, and 252 
i 
10 
—I_ 
15 
TIME (minutes) 
Figure 14. Comparison of GCMS-SIM chromatograms. 
70 
