4
Figure 4
Alcohols, glycols, and other cleaning solvents can be quantified, using anRtx
®
-Wax colum.
Figure 3
FAMEs analysis on anRtx
®
-Wax column.
GC_FF00538
Rtx
®
-Wax, 30m, 0.25mm, 0.25µm (cat.# 12423)
Inj.:
1µL split injection (100:1) of FAME standard; see peak list
Oven temp.:
120°C (hold 3min.) to 220°C at 20°C/min. (hold 12min.)
Inj./det. temp.:
250°C/300°C
Carrier gas:
helium
Linear velocity: 1mL/min. (34 cm/sec.)
Conc.
PeakList
(mg/mL)
1. methyl caproate (C6:0)
0.4
2. methyl caprylate (C8:0)
0.4
3. methyl nonanoate (C9:0)
2.0
4. methyl caprate (C10:0)
0.4
5. methyl laurate (C12:0)
5.0
6. methyl myristate (C14:0)
2.0
7. methyl palmitate (C16:0)
2.0
8. methyl palmitoleate (C16:1)
0.4
9. methyl stearate (C18:0)
0.4
10. methyl oleate (C18:1)
5.0
11. methyl linoleate (C18:2)
1.0
12. methyl linolenate (C18:3)
0.4
Rtx
®
-Wax, 30m, 0.32mm ID, 0.25µm (cat.# 12424)
Sample:
1% each solvent inmethanol
Inj.:
1.0µL split (split ratio 100:1), 4mm inlet liner (cat.# 20814)
Inj. temp.:
250°C
Carrier gas:
hydrogen, constant flow
Flow rate:
3.0mL/min.
Oven temp.:
35°C (4min. hold) to 85°C@ 3°C/min., to 200°C@ 15°C/min. (2min. hold)
Det.:
FID@ 250°C
1. methanol
2.
iso
-propanol
3. ethanol
4.
n
-propanol
5.
iso
-butanol
6.
n
-butanol
7. methyl Cellosolve
®
8. limonene
9. Cellosolve
®
10. butyl Cellosolve
®
11. dipropylene glycol monomethyl ether (DPGMME)
12. diethylene glycol ethyl ether (DEGEE)
13. ethylene glycol
14. tripropylene glycol monomethyl ether (TPGMME)
15. phenyl Cellosolve
®
GC_FF00644
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