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New Rxi®-624Sil MS Columns Give
Better Peak Shape, Improving
Sensitivity
Whether you are developing methods
for residual solvents, analyzing envi-
ronmental VOCs, or running other
applications for volatile organics, you
can improve data quality with Rxi®-
624Sil MS columns.
These new columns are more inert
than other 624 type columns, resulting
in higher response, better peak sym-
metry, and easier integration of active
compounds (Figure 1). Since active
analytes can be quantified at lower
levels compared to similar products
(Figure 2), Rxi®-624Sil MS columns are
the best choice when increased sensi-
tivity is desired.
GC_PH1162
Peaks
1. Isopropylamine
2. Diethylamine
3. Triethylamine
ZB-624
Integration not possible
below 25 ng
Rxi®-624Sil MS
5-100 ng on-column,
R2= 0.99996 Improve sensitivity
and linearity with an
Rxi®-624Sil MS column.
Same conditions as Figure 1. GC_PH1164
Figure 2 Active compounds like isopropylamine can be more accurately integrated
on an Rxi®-624Sil MS column, lowering levels of quantification (LOQs) and increasing
accuracy.
GC_PH1163
2
Highly
reactive
Moderately
reactive
Low reactivity
Rxi®-624Sil MS
DB-624
ZB-624
Complete analytical conditions
for chromatogram GC_PH1162
available at
Rxi®-624Sil MS columns give more
accurate results for active compounds.
Poor peak
shape due to
high activity,
low inertness
get more
For more information
on Rxi®624-Sil MS
columns, download
PHFL1245 at
Figure 1 Highly inert Rxi®-624Sil MS columns provide better peak shape and simplify
integration for active compounds at low levels (5 ng on-column).
Not all “624s” are Equivalent
Introducing Rxi®-624Sil MS Columns
new!
Website : E-mail : TelNo : 03 9762 2034 . . . in AUSTRALIA