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51
GC COLUMNS |
GENERAL-PURPOSE COLUMNS
Rtx®-1301
Rtx®-1301 (G43) Columns
(fused silica)
(low- to midpolarity phase)
• General-purpose columns for residual solvents, alcohols, oxygenates, and volatile
organic compounds.
• Temperature range: -20 °C to 280 °C.
• Equivalent to USP G43 phase.
Many analysts feel the Rtx®-1301 column has the best cyanosiloxane bonded station-
ary phase available, with no other column manufacturer providing lower bleed, longer
lifetime, or better inertness. Our polymer is fully characterized to ensure long-term
reproducibility, column-to-column consistency, and low bleed—even with sensitive
detectors such as ECDs and MSDs.
*Maximum temperatures listed are for shorter length columns. Longer columns may have a different maximum temperature.
15-Meter
30-Meter
60-Meter
75-Meter
105-Meter
ID df
temp. limits* cat.#
price
cat.#
price
cat.#
price
cat.#
price
cat.#
price
0.25 mm 0.25 µm -20 to 280 °C 16020
16023
16026
0.50 µm -20 to 270 °C
16038
1.00 µm -20 to 260 °C
16053
16056
1.40 µm -20 to 240 °C
16016
0.32 mm 0.25 µm -20 to 280 °C 16021
16024
0.50 µm -20 to 270 °C
16039
16042
1.00 µm -20 to 260 °C
16054
16057
1.50 µm -20 to 250 °C 16066
16069
16072
1.80 µm -20 to 240 °C
16092
16093
0.53 mm 0.25 µm -20 to 280 °C
16025
0.50 µm -20 to 270 °C
16040
16043
1.00 µm -20 to 260 °C 16052
16055
16058
1.50 µm -20 to 250 °C
16070
3.00 µm -20 to 240 °C
16085
16088
16076
16091
Rtx®-1301 with Integra-Guard® Columns
Description
qty.
cat.#
price
30 m, 0.53 mm ID, 3.00 µm Rtx-1301 w/5 m Integra-Guard Column
ea.
16085-126
Rtx®-1301 Structure
x
y
Si
O
(CH
2
)
3
CH
3
Si
O
CH
3
z
CH
3
CH
3
Si
O
C N
Similar to: (6%-cyanopropylphenyl)-methylpolysiloxane
Get the protection without the connection!
Integra-Guard® Built-In Guard Column
similar
phases
DB-1301, DB-624, DB-624UI, VF-1301ms,
VF-624ms, CP-1301, ZB-624
• No leaks for a more robust method.
• No column connections for easier, faster maintenance.
• No peak distortions due to connector dead volume and thermal capacity.
0
10
20
1
2
3
4
5
Time (min)
USP <467> Residual Solvents on Rtx®-1301 (G43) by Static Headspace
GC_PH00810
Column
Rtx®-1301 w/5 m Integra-
Guard® , 30 m, 0.53 mm
ID, 3.00 µm
(cat.# 16085-126)
Sample
USP <467> Calibration
Mixture #5 (cat.# 36007)
Diluent:
DMSO
Conc.:
To each 22 mL headspace
vial 5ml water, ~ 1.0 g of
sodium sulfate and 100
µL of stock standard were
added.
Injection
headspace-loop split
(split ratio 2:1)
Headspace-Loop
Inj. Port Temp.:
180 °C
Instrument:
Teledyne Tekmar HT3
Inj. Time:
1.0 min
Transfer Line Temp.: 150 °C
Valve Oven Temp.:
150 °C
Standby flow rate:
10 mL/min
Sample Temp.:
80 °C
Platen temp
equil. time:
2.0 min
Sample Equil. Time: 15.0 min
Mixer time:
2.0 min
Mixing level:
5
Mixer stabilize
time:
0.5 min
Vial Pressure:
15 psi
Pressurize Time: 2.0 min
Pressure
Equilibration
Time:
0.5 min
Loop Pressure:
5 psi
Loop Fill Time:
2.0 min
Loop fill equil.
time:
0.5 min
Oven
Oven Temp.:
40 °C (hold 20 min)
to 240 °C at 25 °C/min (hold
10 min)
Carrier Gas
He, constant flow
Flow Rate:
5 mL/min
Detector
FID@ 250 °C
Make-up Gas
Flow Rate:
45 mL/min
Notes
FID conditions:
hydrogen flow: 40 mL/min
air flow: 450 mL/min
Peaks
t
R
(min)
Conc. (µg/mL)
1. Dichloromethane
5.110
12.0
2. Chloroform
9.285
1.2
3. Benzene
11.173
0.04
4. Trichloroethylene
14.647
1.6
5. 1,4-Dioxane
17.436
7.6
also
available
Metal MXT® Columns
Rugged, flexible, Siltek®-treated stainless
steel tubing; inertness comparable to
fused silica tubing.
MXT®-1301 columns............
page 109