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GC COLUMNS | METAL MXT® CAPILLARY COLUMNS
Application-Specific Columns: Environmental
MXT®-Volatiles Columns (Siltek®-treated stainless steel)
(proprietary Crossbond® diphenyl/dimethyl polysiloxane phase)
• Application-specific columns for volatile organic pollutants.
• Temperature range: -20 °C to 320 °C.
• 4.5" standard coil diameter.
MXT®-Volatiles columns were the first columns designed specifically for analyses of
the 34 volatile organic pollutants listed in U.S. EPA Methods 601, 602, and 624. With
these columns, you can quantify all compounds listed in these methods, whether you
use a mass spectrometer or a PID in tandem with an ELCD. The diphenyl/dimethyl
polysiloxane based MXT®-Volatiles stationary phase provides low bleed and thermal
stability to 320 °C.
*Maximum temperatures listed are for shorter length columns. Longer columns may have a different maximum temperature.
Volatile Organics Analysis
MXT®-624 Structure
x y
Si O
(CH
2
)
3
CH 3
Si O
CH3
z
CH 3
CH
3
Si O
C N
Similar to: (6%-cyanopropylphenyl)-methylpolysiloxane
MXT®-502.2 Columns (Siltek®-treated stainless steel)
(proprietary Crossbond® diphenyl/dimethyl polysiloxane phase)
• Application-specific columns with unique selectivity for volatile organic pollut-
ants, cited in U.S. EPA Method 502.2 and in many gasoline range organics (GRO)
methods for monitoring underground storage tanks. Excellent separation of triha-
lomethanes; ideal polarity for light hydrocarbons and aromatics.
• Temperature range: -20 °C to 320 °C.
• 4.5" standard coil diameter.
An MXT®-502.2 column will enable you to quantify all compounds listed in U.S. EPA
Methods 502.2 or 524.2, whether you use a mass spectrometer or a PID in tandemwith
an ELCD. The diphenyl/dimethyl polysiloxane based MXT®-502.2 stationary phase
provides low bleed and thermal stability to 320 °C. A 105-meter column can separate
the light gases specified in EPA methods without subambient cooling.
similar phases
DB-PS502.2
*Maximum temperatures listed are for shorter length columns. Longer columns may have a different maximum temperature.
30-Meter 60-Meter 105-Meter
ID df temp. limits* cat.# price cat.# price cat.# price
0.25 mm 1.40 µm -20 to 270/320 °C 70916
0.28 mm 1.60 µm -20 to 250/320 °C 70919
0.53 mm 3.00 µm -20 to 250/320 °C 70908 70909 70910
MXT®-624 Columns (Siltek®-treated stainless steel)
(low- to midpolarity phase)
• Application-specific columns for volatile organic pollutants. Recommended in U.S.
EPA methods for volatile organic pollutants.
• Temperature range: -20 °C to 280 °C.
• Equivalent to USP G43 phase.
• 4.5" standard coil diameter.
The unique polarity of “624” columns makes them ideal for analyses of volatile organic
pollutants. Although the MXT®-502.2 column is recommended in many methods,
MXT®-624 columns offer the best separation of the early-eluting gases.
similar phases
DB-PS624, UAC-624
30-Meter 60-Meter
ID df temp. limits cat.# price cat.# price
0.25 mm 1.40 µm -20 to 240/280 °C 70968 70969
0.53 mm 3.00 µm -20 to 240/280 °C 70971 70973
30-Meter 60-Meter
ID df temp. limits* cat.# price cat.# price
0.28 mm 1.25 µm -20 to 280/320 °C 70924 70926
0.53 mm 2.00 µm -20 to 280/320 °C 70925 70927
3.00 µm -20 to 250/320 °C 70922
also available
Column connector
kits & ferrules
See .
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