0
20
40
60
80
100
120
140
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
Durability to pH 10.1
4-Nitroaniline
4-Nitrophenol
Benzoic Acid
Pentachlorophenol
N-nitroso-di-n-propylamine
1,2-Hexanediol
2,4-Dinitrophenol
ResponseRelative toC-14
microliters NH4OH
Figure 7
Repeated injections of ammoniumhydroxide onSiltek tubing
