121
GCCOLUMNS |
METAL (MXT®) CAPILLARYCOLUMNS
Application-Specific 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
®
-624Structure
MXT®-502.2Columns
(Siltek® treatedstainlesssteel)
(proprietaryCrossbond®diphenyl/dimethyl polysiloxanephase)
• Application-specific columnswithunique selectivity for volatile organic pollutants,
cited inUSEPAMethod502.2 and inmany gasoline range organics (GRO)methods
formonitoringunderground storage tanks. Excellent separationof trihalomethanes;
ideal polarity for light hydrocarbons and aromatics.
• Temperature range: -20 °C to320 °C.
AnMXT®-502.2 columnwill enable you to quantify all compounds listed inUS EPA
methods 502.2or 524.2,whether youuse amass spectrometeror aPID 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 inEPAmethodswithout subambient cooling.
*Maximum temperatures listed are for 15- and 30-meter lengths. Longer lengthsmay have a slightly reduced
maximum temperature.
MXT®-VolatilesColumns
(Siltek® treatedstainlesssteel)
(proprietaryCrossbond®diphenyl/dimethyl polysiloxanephase)
• Application-specific columns for volatile organic pollutants.
• Temperature range: -20 °C to320 °C.
MXT®-Volatiles columnswere the first columnsdesigned specifically foranalysesof the
34 volatile organic pollutants listed inUS EPAmethods 601, 602, and 624.With these
columns, you can quantify all compounds listed in thesemethods, whether you use a
mass spectrometer or a PID in tandem with an ELCD. The diphenyl/dimethyl
polysiloxane basedMXT®-Volatiles stationary phase provides low bleed and thermal
stability to320 °C.
MXT®-624Columns
(Siltek® treatedstainlesssteel)
(low tomidpolarityphase; Crossbond®6% cyanopropylphenyl/94%dimethyl polysiloxane)
• Application-specific columns for volatile organic pollutants.Recommended inUS
EPAmethods for volatile organic pollutants.
• Temperature range: -20 °C to280 °C.
• Equivalent toUSPG43phase.
The unique polarity of “624”columnsmakes them ideal for analyses of volatile organ-
ic pollutants. Although theMXT®-502.2 column is recommended inmanymethods,
MXT®-624 columns offer the best separationof the early-eluting gases.
VolatileOrganicsAnalysis
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
