167 
T rif luralin 
4 
1 pg/pL 
I C 
15 pg/L 
bv 
8 pg/g dw 
h KJ L 
300 pg/g Iw 
-/v / v .... 
Chlorpyrifos-ethyl 
1 
1 
1 
4 
n I 
1 
IL ? 
I s 
1 pg/pL 
-if- 14 pg/L 
Jr j: 
1 
6 pg/g dw 
.... .J 
W I 
Endosulfan 
; 
j. 
4 
y 
r - 
--- I 
I ^ : 
1 pg/pL 
14 pg/L 
42 pg/g dw 
l 
•j 
i 
i: 
^JL 
“^u. 1 ■ -jy ■ ■ '.v • • '.yj).y • 'j.' 1 v: • ‘j: 1 • '.v • 
lt> J. li. J. 
j. « A .. j, j. 
■rr-s.—HVV,- 
1.6 ng/g Iw 
• I •" I «. ai >*• 
7 ng/g Iw 
Standard Solution Water 
Sediment 
Fish liver 
Figure 29: Typical GC-NCTMS traces of trifluralin, chlorpyrifos-ethyl, and endosulfan I for standard 
solutions and real samples (Retention times may differ because analysis occurred over a long time period)