EvaluationofLinerDeactivation - Inertness re GC - page 21

A test mix containing active and non-active
compounds was first injected into a control
analytical column without any connected 1/8”
tubing. Test results show superior results
with all compounds resolved (Figure 2).
High activity surface results
in severe peak distortion (a)
and missing peaks (b).
b
a
a
A SilcoNert™2000 coated tube was then
installed in series after the analytical column.
The test compounds were then injected
into the column combination under similar
conditions as the control run. Results show
nearly identical peak resolution and response
with the SilcoNert
TM
2000 tubing with little to no
loss of active compounds (Figure 3).
The SilcoNert™ 2000 tubing was then removed
and replaced with the Silonite tubing. Test
compounds were then injected into the column
combination under similar conditions as the
previous run. Results show significant loss
of active compounds with a high distortion of
signal (peak tailing and broadening) and loss of
peak area (Figure 4).
Figure 2 - Control
analytical column shows
superior results, with all
compounds resolved.
Figure 3 - SilcoNert
TM
2000
coated tubing provides
exceptional inertness
with nearly exceptional
transfer of compounds.
Figure 4 - Silonite coated
tube shows significant
loss of compounds with
high peak tailing.
Peak reference list
1
1,6-Hexanediol
2
Chlorophenol
3
Methyl Nonanoate
4
1-Decylamine
5
Tridecane
6
1-Undecanol
7
Acenaphthylene
8
Pentadecane
8
7
6
5 43
2
1
1...,11,12,13,14,15,16,17,18,19,20 22,23
Powered by FlippingBook