Glycol Ethers of Regulatory Importance on Rtx-624

PeakstR (min)Conc.
(µg/mL)
Common Name
1.EGME4.561100Ethylene glycol methyl ether
2.EGEE5.306100Ethylene glycol ethyl ether
3.Perfluoro TEGME (IS)5.427100Perfluoro triethylene glycol methyl ether
4.PnPGE6.362100Propylene glycol propyl ether
5.PGMA6.511100Propylene glycol methyl ether acetate
6.EGBE6.940100Ethylene glycol butyl ether
7.PGBE7.119100Propylene glycol butyl ether
8.DEGME7.285100Diethylene glycol methyl ether
9.DPGME I + DPGME II7.613100Dipropylene glycol methyl ether
10.DEGEE + DPGME III7.713100Diethylene glycol ethyl ether
11.1,2-DCB-D4 (IS)7.9461001,2-Dichlorobenzene-D4
12.EGHE8.319100Ethylene glycol hexyl ether
13.DEGBE8.880100Diethylene glycol butyl ether
14.EGPhE9.333100Ethylene glycol phenyl ether
15.TPGME isomers9.427100Tripropylene glycol methyl ether
16.DEGHE10.018100Diethylene glycol hexyl ether
Standard was prepared from commercially available neat compounds, 95-99% purity.
image
GC_PC1282
ColumnRtx-624, 30 m, 0.25 mm ID, 1.40 µm (cat.# 10968)
Sample
Diluent:Methanol
Conc.:100 ppm
Injection
Inj. Vol.:1 µL split (split ratio 30:1)
Inj. Temp.:260 °C
Oven
Oven Temp.:40 °C (hold 2 min) to 240 °C at 27 °C/min (hold 6 min)
Carrier GasHe, constant flow
Flow Rate:1.3 mL/min
Linear Velocity:41.05 cm/sec @ 40 °C
DetectorMS
Mode:Scan
Scan Program:
GroupStart Time
(min)
Scan Range
(amu)
Scan Rate
(scans/sec)
1220-22029
Transfer Line Temp.:250 °C
Analyzer Type:Quadrupole
Source Type:Inert
Source Temp.:230 °C
Quad Temp.:150 °C
Electron Energy:70 eV
Solvent Delay Time:2 min
Tune Type:PFTBA
Ionization Mode:EI
InstrumentAgilent 7890A GC & 5975C MSD
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