121
GC COLUMNS |
METAL (MXT®) CAPILLARY COLUMNS
Appl icat ion-Speci f ic Columns
similar
phase
DB-502.2
similar
phase
VOCOL
similar
phases
DB-624, HP-624
CH
3
(CH
2
)
3
CH
3
Si
94%
O
Si
C N
6%
O
MXT
®
-624 Structure
MXT®-502.2 Columns
(Siltek® treated stainless steel)
(proprietary Crossbond® diphenyl/dimethyl polysiloxane phase)
• Application-specific columns with unique selectivity for volatile organic pollutants,
cited in US EPA Method 502.2 and in many gasoline range organics (GRO) methods
for monitoring underground storage tanks. Excellent separation of trihalomethanes;
ideal polarity for light hydrocarbons and aromatics.
• Temperature range: -20 °C to 320 °C.
An MXT®-502.2 column will enable you to quantify all compounds listed in US EPA
methods 502.2 or 524.2, whether you use a mass spectrometer or a PID in tandem with
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.
*Maximum temperatures listed are for 15- and 30-meter lengths. Longer lengths may have a slightly reduced
maximum temperature.
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.
MXT®-Volatiles columns were the first columns designed specifically for analyses of the
34 volatile organic pollutants listed in US 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.
MXT®-624 Columns
(Siltek® treated stainless steel)
(low to midpolarity phase; Crossbond® 6% cyanopropylphenyl/94% dimethyl polysiloxane)
• Application-specific columns for volatile organic pollutants. Recommended in US
EPA methods for volatile organic pollutants.
• Temperature range: -20 °C to 280 °C.
• Equivalent to USP G43 phase.
The unique polarity of “624” columns makes them ideal for analyses of volatile organ-
ic pollutants. Although the MXT®-502.2 column is recommended in many methods,
MXT®-624 columns offer the best separation of the early-eluting gases.
Volatile Organics Analysis
ID
df
temp. limits
30-Meter
60-Meter
105-Meter
0.25mm 1.40µm -20 to 270/320°C 70915
70916
0.28mm 1.60µm -20 to 250/320°C 70919
70920
70921
0.53mm 3.00µm -20 to 270/320°C 70908
70909
70910
ID
df
temp. limits
10-Meter
20-Meter
0.18mm 1.00µm -20 to 270/320°C 71891
71892
ID
df
temp. limits*
30-Meter
60-Meter
105-Meter
0.25mm 1.00µm -20 to 280/320°C 70900
70903
0.28mm 1.25µm -20 to 280/320°C 70924
70926
70928
0.53mm 2.00µm -20 to 280/320°C 70925
70927
70929
3.00µm -20 to 250/320°C 70922
70923
ID
df
temp. limits
30-Meter
60-Meter
0.25mm 1.40µm -20 to 240/280°C 70968
70969
0.53mm 3.00µm -20 to 240/280°C 70971
70973
ID
df
temp. limits
10-Meter
20-Meter
0.18mm 1.00µm -20 to 240/280°C 71893
71894
$745
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Mar 2011
