CLINICAL/FORENSICS
14
Glycols
GC
GC
Glycols
Stabilwax®
30m, 0.53mmID, 1.0µm Stabilwax
®
(cat.# 10655)
1.0µL direct injection of glycol mix, open-topUniliner
®
inlet liner without
wool (cat.# 20843-205)
Conc.:
150ppm ea.
Solvent:
water/methanol (50:50)
Oven temp.:
80°C to 200°C@ 8°C/min. (hold 10min.)
Septa Purge:
5.0cc/min.
Carrier Gas:
helium
Linear Velocity:
50cm/sec.
Column FlowRate:
6.9mL/min.
Detector:
FID/270°C
Make upGas Flow:
45cc/min.
1. 1,2-propylene glycol
2. ethylene glycol
3. 1,3-butylene glycol
4. 1,3-propylene glycol
5. 1,4-butylene glycol
6. diethylene glycol
7. glycerol
GC_EV00476
30m, 0.53mm ID, 1.0µm Stabilwax
®
(cat.# 10655)
1.0µL of direct injection of glycols inwater. Open-top
Uniliner
®
inlet liner without wool (cat.# 20843-205).
Conc.:
100ppm
Oven temp.:
80°C (hold 1min.) to 200°C@
8°C/min. (hold 5min.)
Inj./det. temp.:
225°C/250°C
Carrier gas:
helium
Linear velocity:
50cm/sec.
Detector:
FID
Septum Purge:
5.0cc/min.
min.8.0 9.0
10.0 11.0
~
1. propylene glycol
2. ethylene glycol
1
2
GC_EV00546
Glycols
Stabilwax®
Glycols
Rtx®-BAC1&Rtx®-BAC2
1. ethylene glycol
2. propylene glycol
Rtx®-BAC1
Rtx®-BAC2
30m, 0.32mm ID, 1.8µmRtx
®
-BAC1 (cat.# 18003)
30m, 0.32mm ID, 1.2µmRtx
®
-BAC2 (cat.# 18002)
Inj.:
0.5µL split (100:1) 4mm
single gooseneck inlet liner
Conc.:
1% each
Solvent:
methanol
Oven temp.:
100°C to 240°C@ 5°C/min.
(hold 5min.)
Inj. temp.:
240°C
Septum purge:
5.0cc/min.
Carrier gas:
helium, constant pressure, 12psi
Linear velocity:
37cm/sec.
Column flow rate: 2.1mL/min.
Detector:
FID/240°C
Make-up gas flow: 40cc/min.
GC_EV00474
EthyleneGlycol
Ethylene glycol, amajor component of automo-
tive antifreeze products, is a poison to humans
and animals. It can be analyzed by GC on an
Rtx
®
-BAC1,Rtx
®
-BAC2, or Stabilwax
®
column.
