63
GCCOLUMNS |
APPLICATION-SPECIFICCOLUMNS
Specially Deactivated
BasicCompoundsAnalysis
NEW!
similar
phases
Direct replacement forCP-Volamine,
thick-filmCP-Sil 8 for amines, andother
amine-deactivatedcolumns coatedwith
lowpolaritypolysiloxanephases.
Rtx®-VolatileAmineColumns
(fusedsilica)
• Unique selectivity for baseline resolutionof all volatile amines.
• Excellent inertness assures accuracy and sensitivity for volatile amines,
including free ammonia.
• Highly robust phasewithstands repeatedwater injections, resulting in longer
column lifetime.
• High temperature stability (290 °C) ensures elutionof amines up toC16 and allows
contaminants tobe removedby“bakingout”the column.
TheRtx®-VolatileAminecolumnwasdesigned specifically foranalyzingvolatileamines
indifficultmatrices, such aswater. The unique base deactivation creates an exception-
ally inert surface for these sensitive compounds, resulting in highly symmetric peaks
which allow low detection limits. The stable bonded phase yields a column that is not
only retentiveandhighly selective for thesecompounds,but is alsovery robust andable
to withstand repeated water injections. Comparisons made by customers performing
routine volatile amine applications have shown the Rtx®-Volatile Amine column out-
performs other amine-specific columns, especially for peak shape and lifetime. Each
Rtx®-VolatileAmine column is held to stringent quality specifications and testedwith
a speciallydesigned testmix that includesbasiccompounds toensureexceptional inert-
ness, reliability, and reproducibility. These qualities assure consistent performance and
make theRtx®-VolatileAmine column the best choice for volatile amines analysis.
Shortchainamines inwateronanRtx®-VolatileAminecolumn.
Peaks
1. Methanol
2. Dimethylamine
3. Trimethylamine
4. Methylethylamine
5. Dimethylethylamine
6. Diethylamine
7. Methyldiethylamine
8. Triethylamine
IS= isopropylamine
Column
Rtx
®
-Volatile Amine, 60m, 0.32mm ID (cat.# 18078)
Sample
Short chain amines
Diluent:
Water
Conc.:
200-1,000 ppm
Injection
Inj. Vol.:
1.0µL split (split ratio 15:1)
Inj.Temp.:
220 °C
Split Vent FlowRate: 30mL/min.
Oven
OvenTemp:
40 °C (hold 10min.) to 250 °C at 20 °C/min.
(hold 10min.)
Carrier Gas
H
2
, constant flow
FlowRate:
2.0mL/min.
Linear Velocity:
35 cm/sec.@ 40 °C
Detector
FID@ 250 °C
Instrument
Agilent/HP6890GC
Acknowledgement Chromatogram courtesy of Mr. Gilbert Baele
ofTaminco, Belgium
GC_GN1154
ID
temp. limits
15-Meter
30-Meter
60-Meter
0.32mm
-60 to 290°C
18076
18077
18078
please
note
We recommendusingbase-deactivated
fused silicaguardcolumns
(page34)
and
base-deactivated liners (
page213
)with
Rtx®-VolatileAminecolumns.
Website :
E-mail :
TelNo : 03 9762 2034 . . . inAUSTRALIA
Mar 2011
