Glycol Ethers of Regulatory Importance on Rxi-1301Sil MS

	Peaks	t_R (min)	Conc. (µg/mL)	Common Name
1.	EGME	2.483	100	Ethylene glycol methyl ether
2.	EGEE	3.218	100	Ethylene glycol ethyl ether
3.	Perfluoro TEGME (IS)	3.894	100	Perfluoro triethylene glycol methyl ether
4.	PnPGE	4.412	100	Propylene glycol propyl ether
5.	PGMA	4.622	100	Propylene glycol methyl ether acetate
6.	EGBE	4.998	100	Ethylene glycol butyl ether
7.	PGBE	5.218	100	Propylene glycol butyl ether
8.	DEGME	5.320	100	Diethylene glycol methyl ether
9.	DPGME I	5.685	100	Dipropylene glycol methyl ether

	Peaks	t_R (min)	Conc. (µg/mL)	Common Name
10.	DPGME II	5.715		Dipropylene glycol methyl ether
11.	DEGEE	5.763	100	Diethylene glycol ethyl ether
12.	DPGME III	5.807		Dipropylene glycol methyl ether
13.	1,2-DCB-D4 (IS)	5.876	100	1,2-Dichlorobenzene-D4
14.	EGHE	6.383	100	Ethylene glycol hexyl ether
15.	DEGBE	6.907	100	Diethylene glycol butyl ether
16.	EGPhE	7.239	100	Ethylene glycol phenyl ether
17.	TPGME isomers	7.451	100	Tripropylene glycol methyl ether
18.	DEGHE	7.952	100	Diethylene glycol hexyl ether

Standard was prepared from commercially available neat compounds, 95-99% purity.

Detector

Mode:

Scan

Scan Program:

Group	Start Time (min)	Scan Range (amu)	Scan Rate (scans/sec)
1	2	20-220	29

Transfer Line Temp.:

300 °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:

Instrument

Agilent 7890A GC & 5975C MSD

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