72
GC COLUMNS |
APPLICATION-SPECIFIC COLUMNS
Foods, Flavors & Fragrances
Sharp resolution of butter triglycerides on an Rtx®-65TG column.
min.
0
10
20
30
40
T26 T28 T32 T34 T36 T38 T40 T42 T44 T46 T48 T50
T54
T52
Column:
Rtx
®
-65TG, 30m, 0.25mm ID, 0.10µm (cat.# 17008)
Sample:
0.2µL cold on-column injection of 1% butterfat in isooctane
Oven temp.:
80°C (hold 1 min.) to 240°C @ 30°C/min.
to 360°C @ 4°C/min. (hold 5 min.)
Det. temp.:
380°C
Carrier gas:
hydrogen
Linear velocity: 70cm/sec.
FID sensitivity: 16 x 10
-11
AFS
SPI injector:
high performance capillary insert 60°C,
300°C/min. to 400°C (hold 5 min.)
GC_FF00137
CH
3
CH
3
Si
35%
O
Si
65%
O
Rtx
®
-65TG Structure
crossbond®
technology
reduces bleed, prolongs column lifetime, and
allows rejuvenation through solvent rinsing.
save
money
!
Get six columns for the price of five.
Call 800-356-1688, ext. 4
, or your
Restek representative for details!
Triglycerides in Foods Analysis
please
note
Triglycerides are often injected via on-column
injection. Use 0.53 mm retention gaps and
appropriate connectors.
• Vu2 Union® (see page 289)
• MXT®-Union Connector Kits for Fused Silica
(see page 292)
Rtx®-65TG Columns
(fused silica)
(high polarity phase; Crossbond® 65% diphenyl/35% dimethyl polysiloxane)
• Application-specific columns, specially tested for triglycerides.
• Stable to 370 °C.
The Rtx®-65TG phase resolves triglycerides by degree of unsaturation as well as by
carbon number. Because of the chemistry required to achieve 370 °C thermal stability,
an Rtx®-65TG column should not be used for the analyses of polar compounds.
Solutions For Your Foods, Flavors & Fragrances Analyses
Visit us at
Improved best-in-class GC columns • Standards • Industry experts at your service.
ID
df
temp. limits
15-Meter
30-Meter
0.25mm 0.10µm 40 to 370°C 17005
17008
0.32mm 0.10µm 40 to 370°C 17006
17009
0.53mm 0.10µm 40 to 370°C 17007
17010
Website :
E-mail :
TelNo : 03 9762 2034 . . . in AUSTRALIA
Mar 2011
