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CH
3
(CH
2
)
3
CH
3
Si
86%
O
Si
C N
14%
O
®
similar
phases
DB-1701, HP-1701, SPB-1701, VF-1701,
CP-Sil 19 CB
also
available
Metal MXT® Columns
Rugged, flexible, Siltek® treated stainless steel
tubing; inertness comparable to fused silica
tubing. See
page 118
for our MXT®-1701
columns.
Get the protection without the connection!
For Rtx®-1701 columns with built-in
Integra-Guard® guard columns,
see
page 35
.
Integra-Guard® built-in guard column
similar
phases
DB-225, HP-225, SPB-225, CP-Sil 43 CB
CH
3
(CH
2
)
3
CH
3
Si
50%
O
Si
C N
50%
O
Rtx
®
-225 Structure
Rtx®-225 Columns
(fused silica)
(polar phase; Crossbond® 50% cyanopropylmethyl/50% phenylmethyl polysiloxane)
• General purpose columns for FAMEs, carbohydrates, sterols, flavor compounds.
• Temperature range: 40 °C to 240 °C.
• Equivalent to USP G7, G19 phases.
The cyanopropyl-containing Rtx®-225 phase is slightly less polar than bonded polyeth
ylene glycol (PEG) phases, but it can be used for many of the same applications.
Improvements to the Rtx®-225 polymer have increased thermal stability, reduced bleed
and improved inertness. The Rtx®-225 column provides a 20°C thermal stability advan
tage over other “225” columns because of our unique polymer synthesis technology an
proprietary siloxane deactivation. In most similar columns, the Carbowax® deactiva
tion layer is not fully compatible with the cyanopropyl siloxane polymer, which ca
cause adsorption, tailing of active compounds, and lower efficiency.
*Maximum temperatures listed are for 15- and 30-meter lengths. Longer lengths may have a slightly reduced
maximum temperature.
(midpolarity phase; Crossbond® 14% cyanopropylphenyl/86% dimethyl polysiloxane)
• General purpose columns for alcohols, oxygenates, PCB congeners (e.g. Aroclor
mixes), pesticides.
• Temperature range: -20 °C to 280 °C.
• Equivalent to USP G46 phase.
Rtx®-1701 is one of the more popular stationary phases used in capillary GC. The mi
of cyano and phenyl functional groups increases the polarity and offers a different elu
tion order relative to less polar Rtx®-1 or Rtx®-5 columns. An Rtx®-1701 column i
ideal for confirmation analysis, in combination with an Rtx®-35 or Rtx®-5 column. Th
polymer is fully characterized to ensure long-term reproducibility, column-to-colum
consistency, and low bleed, even with sensitive detectors such as ECDs and MSDs.
ID
df
temp. limits*
15-Meter
30-Meter
60-Meter
0.25mm 0.10µm
-20 to 280°C
12011
0.25µm
-20 to 280°C 12020
12023
12026
0.50µm -20 to 270/280°C 12035
12038
12041
1.00µm -20 to 260/280°C 12050
12053
12056
0.32mm 0.10µm
-20 to 280°C
12009
0.25µm
-20 to 280°C 12021
12024
12027
0.50µm -20 to 270/280°C 12036
12039
12042
1.00µm -20 to 260/280°C 12051
12054
12057
1.50µm -20 to 240/260°C 12066
12069
12072
0.53mm 0.10µm -20 to 270/280°C 12007
0.25µm -20 to 270/280°C 12022
12025
12028
0.50µm -20 to 260/270°C 12037
12040
12043
1.00µm -20 to 250/270°C 12052
12055
12058
1.50µm -20 to 240/260°C 12067
12070
12073
3.00µm -20 to 230/250°C 12082
12085
12088
ID
df
temp. limits
10-Meter
20-Meter
0.10mm 0.10µm
-20 to 280°C 42201
42202
0.18mm 0.20µm
-20 to 280°C 42001
42002
0.40µm -20 to 270/280°C 42010
42011
ID
df
temp. limits*
15-Meter
30-Meter
60-Meter
0.25mm 0.10µm 40 to 220/240°C 14005
14008
0.25µm 40 to 220/240°C 14020
14023
14026
0.50µm 40 to 220/240°C 14035
14038
14041
0.32mm 0.10µm 40 to 220/240°C 14006
14009
0.25µm 40 to 220/240°C 14021
14024
14027
0.50µm 40 to 220/240°C 14036
14039
14042
1.00µm 40 to 200/220°C 14051
14054
14057
0.53mm 0.10µm 40 to 200/220°C 14007
14010
0.25µm 40 to 200/220°C 14022
14025
0.50µm 40 to 200/220°C 14037
14040
14043
1.00µm 40 to 200/220°C 14052
14055
14058
Website : www.chromtech.net.au E-mail : info@chromtech.net.au TelNo : 03 9762 2034 . . . in AUSTRALIA Mar