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GC COLUMNS | APPLICATION-SPECIFIC COLUMNS
Pharmaceutical
Organic Volatile Impurities (OVI) Analysis
G16 phase
ordering note
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For Stabilwax® columns with built-in
Integra-Guard® guard columns, see .
Residual Solvents (Class 1) on Stabilwax® (G16)
GC_PH00951
Column Stabilwax®, 30 m, 0.32 mm ID, 0.25 µm (cat.# 10624)
Sample Residual solvents - class 1 (cat.# 36279)
in 20 mL headspace vial (cat.# 24685)
Diluent: Water
Injection
Inj. Vol.: 1.0 µL headspace-syringe split (split ratio 5:1)
Liner: 2 mm splitless (cat.# 20712)
Inj. Temp.: 140 °C
Headspace-Syringe
Instrument: Overbrook Scientific HT200H
Syringe Temp.: 100 °C
Sample Temp.: 80 °C
Sample Equil. Time: 45 min
Inj. Speed: 8
Inj. Dwell: 5 sec
Oven
Oven Temp.: 50 °C (hold 20 min) to 165 °C at 6 °C/min (hold 20 min)
Carrier Gas He, constant flow
Flow Rate: 2.15 mL/min
Linear Velocity: 35.2 cm/sec
Detector FID@ 250 °C
Peaks
1. 1,1-Dichloroethene
2. 1,1,1-Trichloroethane
3. Carbon tetrachloride
4. Benzene
5. 1,2-Dichloroethane
System suitability
criteria met
free literature
Custom Residual Solvent
Mixes
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lit. cat.#
PHTS1212
Stabilwax® Columns (fused silica)
(polar phase; Crossbond® polyethylene glycol)
• Most stable polyethylene glycol (PEG) column available.
• Rugged enough to withstand repeated water injections.
• Lowest-bleed PEG column on the market; long column lifetimes.
• Temperature range: 40 °C to 260 °C.
• Equivalent to USP G14, G15, G16, G20, and G39 phases.
Restek’s polar-deactivated surface tightly binds the Carbowax® polymer and increases
thermal stability, relative to competitive columns. Because of the increased stability
produced by the bonding process, Stabilwax® columns exhibit long column lifetimes,
even when programming repeatedly up to 260 °C. The bonding mechanism of the
column also produces polar compound retention times that do not shift, as is often
observed on other wax-type columns. In addition, this bonding mechanism produces
a column that can be rejuvenated by solvent washing.
Stabilwax® Structure
H
H
C C O
H
H
similar phases
HP-INNOWax, CP-Wax 52 CB, VF-WAX MS,
ZB-WAXplus
15-Meter 30-Meter 60-Meter
ID df temp. limits cat.# price cat.# price cat.# price
0.25 mm 0.10 µm 40 to 250/260 °C 10605 10608 10611
0.25 µm 40 to 250/260 °C 10620 10623 10626
0.50 µm 40 to 250/260 °C 10635 10638 10641
0.32 mm 0.25 µm 40 to 250/260 °C 10621 10624 10627
0.50 µm 40 to 250/260 °C 10636 10639 10642
1.00 µm 40 to 240/250 °C 10651 10654 10657
0.53 mm 0.25 µm 40 to 250/260 °C 10622 10625 10628
0.50 µm 40 to 250/260 °C 10637 10640 10643
1.00 µm 40 to 240/250 °C 10652 10655 10658
1.50 µm 40 to 230/240 °C 10666 10669 10672
2.00 µm 40 to 220/230 °C 10667 10670
10-Meter 20-Meter
ID df temp. limits cat.# price cat.# price
0.15 mm 0.15 µm 40 to 250/260 °C 43830 43831
0.18 mm 0.18 µm 40 to 250 °C 40602