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126
www.restek.comWater and Ethanol in Acetone on Rt®-Q-BOND
GC COLUMNS |
PLOT COLUMNS
Fused Silica Porous Polymer Columns
Our porous polymer PLOT columns
are not moisture sensitive, making
them ideal for applications where
moisture is of major concern.
most
polar
least
polar
Q-BOND
QS-BOND
S-BOND
U-BOND
Restek porous
polymer PLOT
columns cover a
wide range of
polarities
1.6
Time (min)
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.4
1.935
2.215
2.063
2.527
2.723
GC_PC01075
Colum
n
Rt®-Q-BOND, 30 m, 0.53 mm ID, 20 µm (cat.# 19742)
Sample
Diluent:
Acetone
Conc.:
0.5%Water and ethanol
Injection
Inj. Vol.:
3 µL split (split ratio 11:1)
Liner:
Splitless taper (4 mm) w/wool (cat.# 22405)
Inj. Temp.:
250 °C
Oven
Oven Temp.:
200 °C (hold 4 min)
Carrier Gas
He, constant linear velocity
Linear Velocity:
28.7 cm/sec @ 200 °C
Detector
TCD@ 260 °C
Peaks
tR (min)
1. Methane
1.935
2. Water
2.063
3. Methanol
2.215
4. Ethanol
2.527
5. Acetone
2.723
Rt®-Q-BOND Columns
(fused silica PLOT)
100% divinylbenzene
• Nonpolar PLOT column incorporating 100% divinylbenzene.
• Excellent for analysis of C1 to C3 isomers and alkanes up to C12.
• High retention for CO
2
simplifies gas analysis; CO
2
and methane separated from
O
2
/N
2
/CO. (Note: O
2
/N
2
/CO not separated at room temperature.)
• Use for analysis of oxygenated compounds and solvents.
• Maximum temperature of 300 °C.
similar
phases
HP PLOT Q, CP-PoraPLOT Q, CP-PoraBOND Q,
Supel-Q-PLOT, AT-Q
Porous Polymer Columns
Porous polymers are unique, highly retentive stationary phases with a wide applica-
tion range that are able to elute both polar and nonpolar compounds. They are very
hydrophobic, so water has no impact on retention times and even elutes as a good
chromatographic peak. The Q-BOND is our most nonpolar and widely used porous
polymer column; functional groups can be added to increase polarity (i.e., QS-, S-, and
U-BOND). The process used to manufacture porous polymer PLOT columns causes
the particles to adhere strongly to the walls of the tubing, so there is virtually no par-
ticle generation. You get reproducible performance from column to column, including
selectivity and flow.
15-Meter
30-Meter
ID
df
temp. limits
cat.#
price
cat.#
price
0.25 mm 8 µm to 280/300 °C
19764
19765
0.32 mm 10 µm to 280/300 °C
19743
19744
0.53 mm 20 µm to 280/300 °C
19741
19742