Table A10. Fourth pesticide study--Effect of hot water detergent wash and rinse on polymeric tubings.
Desorbed conc. (g/L) after
Analyte conc. (g/L) in
24-hr sorb/10 min desorb
10-min controls
Material
Lindane Heptachlor Aldrin Dieldrin
Lindane Heptachlor Aldrin
Dieldrin
PVDF-A
LD
LD
LD
LD
A
614
9.6
608
382
PVDF-B
LD
LD
LD
LD
B
708
10.3
671
423
PVDF-C
LD
LD
LD
LD
C
614
9.2
596
375
645
9.7
625
393
X
LDPE-A
LD
LD
LD
LD
% RSD
8.4
5.7
6.5
6.6
LDPE-B
LD
LD
LD
LD
LDPE-C
LD
LD
LD
LD
Desorbed conc. (g/L) after
10-min sorb / 10-min desorb
P(VDF-HFP)-A
LD
LD
LD
LD
Material
Lindane Heptachlor Aldrin Dieldrin
P(VDF-HFP)-B
LD
LD
LD
LD
P(VDF-HFP)-C
LD
LD
LD
LD
PVDF-A
LD
LD
LD
LD
PVDF-B
LD
LD
LD
LD
Desorbed conc. (g/L) after
PVDF-C
LD
LD
LD
LD
24-hr sorb/24 hr desorb
Material
Lindane Heptachlor Aldrin Dieldrin
LDPE-A
LD
LD
LD
LD
LDPE-B
LD
LD
LD
LD
PVDF-A
LD
LD
LD
LD
LDPE-C
LD
LD
LD
LD
PVDF-B
LD
LD
LD
LD
PVDF-C
LD
LD
LD
LD
P(VDF-HFP)-A LD
LD
LD
LD
P(VDF-HFP)-B LD
LD
LD
LD
LDPE-A
6.3
LD
2.0
LD
P(VDF-HFP)-C LD
LD
LD
LD
LDPE-B
5.7
LD
1.7
LD
LDPE-C
4.9
LD
1.5
LD
Analyte conc. (g/L) in
X
5.6
1.7
24-hr controls
%RSD
13
15.
Lindane Heptachlor Aldrin Dieldrin
% initial
0.89
0.28
A
596
6.2
590
363
B
625
7.2
622
384
P(VDF-HFP)-A LD
LD
LD
LD
C
674
7.1
635
405
P(VDF-HFP)-B LD
LD
LD
LD
632
6.8
616
384
X
P(VDF-HFP)-C LD
LD
LD
LD
% RSD
6.2
8.1
3.8
5.5
MDL
0.98
0.58
0.91
0.96
Solution conc. (g/L) after
LD = less than detection limit.
24-hr sorption
Material
Lindane Heptachlor Aldrin Dieldrin
PVDF-A
613
1.8
572
177
PVDF-B
613
1.7
591
182
PVDF-C
633
1.7
588
179
620
1.7
584
179
X
%R SD
1.9
3.3
1.8
1.4
% of initial
98
25
95
47
LDPE-A
182
LD
498
27.4
LDPE-B
175
LD
488
29.7
LDPE-C
185
LD
482
34.6
181
LD
489
30.6
X
% RSD
2.9
1.7
12.0
% of initial
29
80
8.0
P(VDF-HFP)-A
427
1.5
468
95.3
P(VDF-HFP)-B
421
1.1
479
72.6
P(VDF-HFP)-C
381
LD
460
32.8
X
410
<1.1
469
66.9
% RSD
6.1
2.1
47
% of initial
65
76
17
MDL
0.98
0.58
0.91
0.96
LD = less than detection limit.
28
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