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GC COLUMNS | METAL MXT® CAPILLARY COLUMNS
General-Purpose Columns
MXT®-5 Structure
CH3
CH3
Si
95%
O Si
5%
O
Similar to: (5%-phenyl)-methylpolysiloxane
also
available
Metal MXT®
PLOT Columns
See .
MXT®-5 Columns (Siltek®-treated stainless steel)
(low-polarity phase; Crossbond® diphenyl dimethyl polysiloxane)
• General-purpose columns for drugs, solvent impurities, pesticides, hydrocarbons,
PCB congeners (e.g., Aroclor mixes), essential oils, and semivolatiles.
• Temperature range: -60 °C to 430 °C.
• Equivalent to USP G27, G36 phases.
• 4.5" standard coil diameter.
The diphenyl dimethyl polysiloxane stationary phase is the most popular GC station-
ary phase and is used in a wide variety of applications. All residual catalysts and low
molecular weight fragments are removed from the MXT®-5 polymer, providing a tight
monomodal distribution and extremely low bleed. similar phases
DB-PS5, VF-5ht UltiMetal, UAC-5, UAC-5MS
*Maximum temperatures listed are for shorter length columns. Longer columns may have a different maximum temperature.
15-Meter 30-Meter 60-Meter
ID df temp. limits* cat.# price cat.# price cat.# price
0.25 mm 0.10 µm -60 to 330/430 °C 70205 70208
0.25 µm -60 to 360/430 °C 70220 70223 70226
0.50 µm -60 to 330/360 °C 70235 70238 70241
1.00 µm -60 to 310/340 °C 70250 70253
0.28 mm 0.25 µm -60 to 340/430 °C 70221 70224 70227
0.50 µm -60 to 315/400 °C 70236 70239
1.00 µm -60 to 310/360 °C 70251 70254 70257
3.00 µm -60 to 290/360 °C 70281 70284
0.53 mm 0.25 µm -60 to 340/430 °C 70222 70225 70228
0.50 µm -60 to 330/400 °C 70237 70240
1.00 µm -60 to 310/360 °C 70252 70255 70258
1.50 µm -60 to 300/360 °C 70267 70270
3.00 µm -60 to 290/360 °C 70282 70285 70288
5.00 µm -60 to 270/360 °C 70277 70279 70283
10-Meter 20-Meter 40-Meter
ID df temp. limits cat.# price cat.# price cat.# price
0.18 mm 0.20 µm -60 to 325/430 °C 71821 71822 71823
0.40 µm -60 to 315/400 °C 71824 71825
Siloxane (Polysiloxane 20) on MXT®-5
GC_CH00359
Column MXT®-5, 15 m, 0.28 mm ID, 0.25 µm
(cat.# 70221)
Sample Polysiloxane 20
Diluent: Pentane
Injection
Inj. Vol.: 1.0 µL split (split ratio 100:1)
Inj. Temp.: 250 °C
Oven
Oven Temp.: 75 °C to 340 °C at 15 °C/min
Carrier Gas H 1, constant flow
Linear Velocity: 40 cm/sec
Detector FID@ 340 °C
Notes FID sensitivity: 16 x 10-11AFS
MXT® GC Column Ferrule Guide
GC Column ID GC Column OD Ferrule ID
0.18 mm 0.36 ± 0.001 0.4
0.25 mm 0.41 ± 0.001 0.5
0.28 mm 0.56 ± 0.001 0.6
0.32 mm 0.44 ± 0.0015 0.5
0.53 mm 0.74 ± 0.001 0.8