1,6-Hexanediol
4-Chlorophenol
Methyl Nonanoate
1-Decylamine
1,6-Hexanediol
4-Chlorophenol
Methyl Nonanoate
1-Decylamine
Results
Tests show the SilcoNert™2000 treated tube is the least active surface for analytical and process
sampling. The Silonite surface is drastically more active. Exhibiting significant surface activity
with very poor resolution of active compounds. Figure 5 shows the relative activity of each
coating based on test results of the 8 active compounds. For a mildly active compound such as
4-chlorophenol, the SilcoNert™2000 surface showed nearly 6.7 times better response than the
Silonite surface. For a more active compound such as 1,6-hexanediol, the SilcoNert™ 2000
column surface showed a response nearly equal to the response seen on the analytical column
alone. With high activity compounds the Silonite column system showed total adsorption of
1,6-hexanediol. See Appendix A for comparative analytical data.
Appendix B:
Analytical Test Conditions Comparing SilcoNert™ 2000 Coated Tubing with Silonite Coated Tubing
Analytical Column: Mxt-5, 30m x 0.53mm x 0.50µm (Restek Corporation)
Inj.: 1.0µl split injection of Rxi-500 Isothermal Test Mix (Restek Coporation)
Oven Temp: 135°C isothermal
Inj./Det. Temp.: 250°C/330°C
Linear Velocity: 55cm/sec hydrogen
Detector: FID
Split Flow: 100ml/min
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Conclusion
SilcoNert™2000 surface is demonstratively the most inert surface for sampling, transporting,
or analyzing active compounds containing active functional groups such as diols, nitrophenols,
sulfurs, and mercury compounds.
Appendix A: Comparative analytical test results of SilcoNert
TM
2000 vs, Silonite coated tubes,
Figure 5: SilcoNert
TM
2000 demonstrates superior inertness
compared to Silonite.
