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2007 vol. 2
Chemical/Petrochemical
Figure 1 shows, for each source material, the analy-
sis to FAME C24:1 is completed in less than 11
minutes. Particularly notable are the stability of
the baselines, the excellent peak symmetry, and
baseline resolution of all compounds of interest.
Table 2 summarizes the RSD% values for the FAMEs
measurements, all of which are less than 1%.
A 30m x 0.32mm ID x 0.25μm Stabilwax® column,
used with hydrogen carrier gas, permits high speed
analysis and ensures precise data acquisition for
accurate quantification of C14:0-C24:1 FAMEs
and linolenic acid methyl ester.
Stabilwax® Column (fused silica)
(Crossbond
®
Carbowax
®
polyethylene glycol)
ID df (μm)
temp. limits
length cat. #
price
0.32mm 0.25
40 to 250°C
30-Meter 10624
$460
for
more
info
For information about Parker
Balston hydrogen generators,
refer to our general catalog or
visit us online at
www.restek.com/hydrogen-generator
Soy
Tallow
Rapeseed
Yellow Grease
Myristic acid
C14:0
0.21
1.7
0.11
0.68
Palmitic acid
C16:0
11.24
25.5
4.1
16.35
Palmitoleic acid C16:1
0.2
3.27
0.27
1.23
Stearic acid
C18:0
4.04
14.41
1.8
9.32
Oleic acid
C18:1
21.93
40.34
58.57
47.8
Linoleic acid
C18:2
53.84
12.02
22.2
20.01
Linolenic acid
C18:3
7.29
0.99
13.26
2.93
Arachidic acid
C20:0
0.36
0.4
0.79
0.46
Gadoleic acid
C20:1
0.26
1.03
1.79
0.39
Behenic acid
C22:0
0.45
0.57
0.44
Erucic acid
C22:1
0.13
0.23
Lignoceric acid
C24:0
0.16
0.34
0.3
0.24
Nervonic acid
C24:1
0.17
0.54
Soy
Tallow
Rapeseed
Yellow Grease
Myristic acid
C14:0
0.33
0.42
0.24
0.36
Palmitic acid
C16:0
0.04
0.06
0.02
0.04
Palmitoleic acid C16:1
0.23
0.17
0.19
0.09
Stearic acid
C18:0
0.05
0.02
0.13
0.19
Oleic acid
C18:1
0.02
0.3
0.2
0.25
Linoleic acid
C18:2
0.25
0.41
0.11
0.22
Linolenic acid
C18:3
0.13
0.16
0.07
0.14
Arachidic acid
C20:0
0.3
0.37
0.23
0.31
Gadoleic acid
C20:1
0.33
0.28
0.37
0.41
Behenic acid
C22:0
0.28
0.29
0.17
Erucic acid
C22:1
0.21
0.26
Lignoceric acid
C24:0
0.53
0.14
0.1
0.33
Nervonic acid
C24:1
0.55
0.83
Table 1
Sources of FAMEs in B100 biodiesel fuel (% m/m).
Table 2
Relative standard deviations for FAMEs do not exceed 1% in
analyses on a Stabilwax® column (n = 3).
did
you
know?
Restek offers FAME standards for a wide range of oils. See our
general catalog or visit us online
www.restek.com.
Parker Hydrogen Generators
• Selectable delivery pressure: 0–100psig.
• High hydrogen purity—99.9995%—for better chromatography.
• No high-pressure cylinders—greater convenience and improved lab safety.
Description
Capacity qty.
cat.#
price
Hydrogen Generator A9090
90cc/min.
ea.
22033
$4815
Hydrogen Generator A9090 with European Power Cord
90cc/min.
ea.
22033-551
$4815
Hydrogen Generator A9150
160cc/min.
ea.
22034
$6195
Hydrogen Generator A9150 with United Kingdom Power Cord 160cc/min.
ea.
22034-550
$6195
Hydrogen Generator B9200
250cc/min.
ea.
22035
$7946
Hydrogen Generator B9400
500cc/min.
ea.
22036
$10,356
Replacement Components for Hydrogen Generators (for all models listed above)
Replacement Deionizer Bag
2-pk.
21670
$55
Replacement Desiccant Cartridge
ea.
21671
$212
Get More!
Biodiesel Related
Articles Online
“Biodiesel Analysis by
European Methodology”
“Analyze Biodiesel
Oil for Glycerin”
www.restek.com/biodiesel