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www.restek.comGC COLUMNS |
METAL MXT® CAPILLARY COLUMNS
General-Purpose Columns
MXT®-200 Columns
(Siltek®-treated stainless steel)
(midpolarity phase; Crossbond® trifluoropropylmethyl polysiloxane)
• General-purpose columns for solvents, Freon® fluorocarbons, alcohols, ketones,
silanes, and glycols. Excellent confirmation column with an Rtx®-5 column, for
phenols, nitrosamines, organochlorine pesticides, chlorinated hydrocarbons, and
chlorophenoxy herbicides.
• Temperature range: -20 °C to 400 °C.
• Equivalent to USP G6 phase.
• 4.5
"
standard coil diameter.
*Maximum temperatures listed are for shorter length columns. Longer columns may have a different maximum temperature.
MXT®-200 Structure
CH
3
CF
3
(CH
2
)
2
Si
O
MXT®-WAX Structure
H
H
C C O
H
H
Similar to: (trifluoropropyl)-methylpolysiloxane
also
available
Metal MXT®
PLOT Columns
See
page 129.
15-Meter
30-Meter
60-Meter
ID
df
temp. limits*
cat.#
price
cat.#
price
cat.#
price
0.25 mm 0.50 µm -20 to 400 °C
75038
1.00 µm -20 to 310/360 °C
75053
0.53 mm 1.00 µm -20 to 290/360 °C 75052
75055
75058
1.50 µm -20 to 280/360 °C
75070
75073
3.00 µm -20 to 260/360 °C 75082
75085
75088
MXT®-WAX Columns
(Siltek®-treated stainless steel)
(polar phase; Crossbond® Carbowax® polyethylene glycol—provides oxidation resistance)
• General-purpose columns for FAMEs, flavor compounds, essential oils, amines,
solvents, xylene isomers, and U.S. EPA Method 603 (acrolein/acrylonitrile).
• Temperature range: 40 °C to 260 °C.
• Equivalent to USP G14, G15, G16, G20, and G39 phases.
• 4.5
"
standard coil diameter.
similar phases
DB-PSWAX, UAC-CW
*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 0.25 µm 40 to 250/260 °C 70620
70623
0.50 µm 40 to 260 °C
70638
0.28 mm 0.25 µm 40 to 250/260 °C
70624
0.50 µm 40 to 250/260 °C
70639
70642
1.00 µm 40 to 240/250 °C 70651
70654
70657
0.53 mm 0.25 µm 40 to 250/260 °C 70622
70625
0.50 µm 40 to 250/260 °C 70637
70640
1.00 µm 40 to 240/250 °C 70652
70655
70658
1.50 µm 40 to 230/250 °C 70666
70669
70672
2.00 µm 40 to 220/250 °C 70667
70670
Aromatics (Benzene/Toluene/Xylene) on MXT®-WAX
GC_PC00188
Column
MXT®-WAX, 30 m, 0.28 mm ID, 1.00 µm
(cat.# 70654)
Sample
BTEX Standard (cat.# 30051)
Injection
Inj. Vol.:
1.0 µL split (split ratio 100:1)
Inj. Temp.:
260 °C
Oven
Oven Temp.:
60 °C
Carrier Gas
H
2
, constant flow
Linear Velocity:
38 cm/sec
Detector
FID@ 260 °C
Notes
FID sensitivity: 3.2 x 10
-11
AFS
Peaks
1. Benzene
2. Toluene
3. Ethylbenzene
4.
p
-Xylene
5.
m
-Xylene
6.
o
-Xylene