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65
GC COLUMNS |
APPLICATION-SPECIFIC COLUMNS
Special ly Deact ivated
Table of Contents for
GC Chromatograms
see
page 542
Basic Compounds Analysis
restek
innovation
!
Rtx®-35 Amine Columns
(fused silica)
(midpolarity phase; Crossbond® 35% diphenyl/65% dimethyl polysiloxane)
• Application-specific columns for amines and other basic compounds,
including alkylamines, diamines, triamines, ethanolamines, and nitrogen-containing
heterocyclics.
• Stable to 220 °C.
Active basic compounds that otherwise require derivatization, or an alternative analyt-
ical technique, can be analyzed on an Rtx®-35 Amine column. The tubing surface is
chemically altered to reduce tailing of basic compounds, eliminating the need for col-
umn priming. An Rtx®-35 Amine column is ideal for analyzing a wide variety of basic
compounds, but breakthrough technology also allows the analysis of neutral com-
pounds, adsorptive compounds with oxygen groups susceptible to hydrogen bonding.
Every Rtx®-35 Amine column is tested to ensure that it meets the requirements for ana-
lyzing ppm levels of amines, without priming, and to ensure low bleed at maximum
operating temperature.
Column:
Rtx
®
-35 Amine, 30m, 0.25mm ID, 0.50µm
(cat.# 11338)
Sample:
1.0µL split injection of underivatized
sympathomimetic amines
Conc.
1000ng/µL
Inj. temp:
250°C
Carrier gas:
helium
Linear velocity:
30cm/sec.
Oven temp.:
150°C to 240°C @ 7°C/min.
Det.:
MSD
Scan range:
40–450amu
Ionization:
EI
Mode:
scan
Sympathomimetic amines (basic drugs) (underivatized) on an Rtx®-35 Amine column.
GC_PH00574
1. amphetamine
2. methamphetamine
3. N-ethylamphetamine
4.
p
-methoxyamphetamine (PMA)
5.
p
-methoxymethamphetamine (PMMA)
6. methylenedioxyamphetamine (MDA)
7. methylenedioxymethamphetamine (MDMA)
8. methylenedioxyethylamphetamine (MDEA)
9. HMMA
10. MBDB
ID
df
temp. limits
15-Meter
30-Meter
0.25mm 0.50µm 0 to 220°C 11335
11338
1.00µm 0 to 220°C 11350
11353
0.32mm 1.00µm 0 to 220°C 11351
11354
1.50µm 0 to 220°C 11366
11369
0.53mm 1.00µm 0 to 220°C 11352
11355
3.00µm 0 to 220°C 11382
11385
please
note
We recommend using base-deactivated
fused silica guard columns
(page 34)
and
base-deactivated liners (
page 213
) with
Rtx®-35 Amine columns.
Website : www.chromtech.net.au E-mail : info@chromtech.net.au TelNo : 03 9762 2034 . . . in AUSTRALIA
Mar 2011