Table A11. Fifth pesticide study--Effect of various
treatments on LDPE tubing.
Concentration (g/L)
Lindane*
Heptachlor
Aldrin*
Dieldrin
Controls
A
5518
36.5
438
107
B
5640
37.4
457
113
C
5657
40.0
444
109
5605
38.0
446
110
X
% RSD
1.4
4.8
2.2
2.8
Hot detergent water wash and hot water rinse
A
187
LD
2.79
LD
B
215
LD
2.88
LD
C
185
LD
2.84
LD
a
2.84a
196
LD
LD
X
% RSD
8.6
1.6
Hot detergent water wash, hot water rinse,
and methanol rinse
A
158
LD
2.01
LD
B
137
LD
2.11
LD
C
105
LD
1.27
LD
b
133
LD
1.80
LD
X
% RSD
20
26
Hot detergent water wash, hot water rinse,
and hexane rinse
A
157
LD
3.42
LD
B
113
LD
2.57
LD
C
97.7
LD
1.93
LD
123b
2.64a,b
LD
LD
X
% RSD
25
28
Hot detergent water wash, hot water rinse,
and oven dry (117C) for 24 hours
A
10.6
LD
LD
LD
B
10.2
LD
LD
LD
C
14.5
LD
LD
LD
11.8c
LD
LD
LD
X
% RSD
20
MDL
0.74
0.84
0.55
0.85
LD = less than detection limit
.
*For each analyte, values with the same letter are not signifi-
cantly different at the 95% confidence level using Fisher's Pro-
tected Least Significant Difference test.
29
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