59
GC COLUMNS |
GENERAL-PURPOSE COLUMNS
Stabilwax®-MS
Stabilwax®-MS Columns
(fused silica)
• High-polarity, stable polyethylene glycol (PEG) stationary phase.
• Low bleed and rugged enough to withstand repeated temperature
cycles without retention time shifting.
• Ideal for food, flavor, fragrance, and industrial chemical and solvent analysis.
• Temperature range: 40 °C to 250/260 °C.
• Equivalent to USP G14, G15, G16, G20, and G39 phases.
New Stabilwax®-MS columns ensure reproducible retention times from run to run,
even with temperature cycling. When methods require trace analysis, this highly
polar, low-bleed stationary phase produces excellent signal-to-noise levels! Ideal for
food and flavor analysis (e.g., essential oils), fragrance and allergen analysis, as well as
industrial solvent and chemical analysis.
Stabilwax®-MS Structure
H
H
C C O
H
H
1
2
3
4
5
6
7
8
9
10
11
= Gin 1
= Gin 2
6.0
7.0
8.0
9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 21.0 22.0 23.0 24.0
Time (nim)
Two Brands of Gin on Stabilwax®-MS (Overlay)
GC_FF1237
Column
Stabilwax®-MS, 30 m, 0.25 mm ID, 0.25 µm (cat.# 10673)
Sample
Two different brands of gin
Conc.:
Neat
Injection
Inj. Vol.:
1 µL split (split ratio 20:1)
Liner:
Sky® 3.5 mm Precision® liner w/wool (cat.# 23320.1)
Inj. Temp.:
250 °C
Oven
Oven Temp.:
35 °C (hold 5 min) to 250 °C at 7 °C/min (hold 5 min)
Carrier Gas
He, constant linear velocity
Linear Velocity:
36 cm/sec
Detector
MS
Mode:
Scan
Scan Program:
Start Time Scan Range Scan Rate
Group (min)
(amu)
(scans/sec)
1
0.5
40-550
2
Transfer Line Temp.: 260 °C
Analyzer Type:
Quadrupole
Source Temp.:
250 °C
Solvent Delay Time: 0.5 min
Ionization Mode:
EI
Instrument
Shimadzu 2010 GC & QP2010+ MS
Peaks
t
R
(min)
1.
α
-Pinene
6.16
2. Beta-myrcene
10.05
3. D-Limonene
10.81
4. Isoamyl alcohol*
11.64
5.
γ
-Terpinene
12.08
6. Camphor*
17.97
7. Linalool
18.56
8. 4-Terpineol
19.56
9.
α
-Terpineol*
21.18
10. Nerol acetate*
22.14
11. Geraniol*
23.55
* Not found in gin represented by red trace.
30-Meter
ID
df
cat.#
price
0.25 mm
0.25 µm
10673
0.32 mm
0.25 µm
10674
NEW!
also available
Stabilwax®-DA and
Stabilwax®-DB
Columns
See
pages 98and
102.