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239
gc capillary columns
from
vici Metronics
�
Propylene glycol
Ethylene glycol
0
9 minutes
Tetradecane
Heptadecane
Valeric acid
Hexanoic acid
Heptanoic acid
Docosane
glycols
Sample:
50 ppm EG, PG
Column:
VB-Wax
30m x .53mm x 1.00µm
Column temp:
80°C for 1 min,
to 200°C @ 20°C/min,
hold 5 min
Detector:
FID
Carrier:
Helium at 5 psi
Injector:
1 µl splitless, .5 min
Det/Inj temp:
220°C
BTEX
Column:
VB-Wax
30m x .25mm x .25µm
Column temp:
40°C isothermal
Detector:
FID
Carrier:
Hydrogen
Injector:
.5 µl 100:1 split
Det/Inj temp:
220°C
free fatty acids
Column:
VB-Wax
30m x .25mm x .25µm
Column temp:
170°C isothermal
Detector:
FID
Carrier:
Hydrogen at 40 cm/sec
Injector:
Split 100:1
Det/Inj temp:
220°C
0
13 minutes
Benzene
Toluene
m-Xylene
p-Xylene
o-Xylene
Ethylbenzene
ValcoBond Columns
VB-Wax
VB-Wax
VB-Wax
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