Furan and Alkylfurans in Baby Formula Spiked at 5 µg/kg on Rxi-624Sil MS

GC_GN1219

	Peaks	t_R (min)	Ion (Quantifier)	Ion (Qualifier)	Dwell Time (ms)
1.	Furan-d4	2.428	72	42	50
2.	Furan	2.447	68	39	50
3.	2-Methylfuran-d6	4.464	88	58	30
4.	2-Methylfuran	4.536	82	53	30
5.	3-Methylfuran	4.846	82	53	30

	Peaks	t_R (min)	Ion (Quantifier)	Ion (Qualifier)	Dwell Time (ms)
6.	2-Ethylfuran-d5	7.001	101	55	30
7.	2-Ethylfuran	7.100	81	96	30
8.	2,5-Dimethylfuran-d3	7.179	99	84	30
9.	2,5-Dimethylfuran	7.243	95	67	30
10.	2-Pentylfuran-d11	11.501	149	83	30
11.	2-Pentylfuran	11.570	138	81	30

Standard/Sample
Column	Rxi-624Sil MS, 30 m, 0.25 mm ID, 1.40 µm (cat.# 13868)







Diluent:	N/A
Conc.:	5 µg/kg
Injection	split (split ratio 10:1)
Liner:	Topaz 1.8 mm ID straight/SPME inlet liner (cat.# 23280)
Inj. Temp.:	280 °C
Split Vent Flow Rate:	14 mL/min
Oven
Oven Temp.:	35 °C (hold 3 min) to 75 °C at 8 °C/min to 200 °C at 25 °C/min (hold 1 min)
Carrier Gas	He, constant flow
Flow Rate:	1.4 mL/min

Detector	MS
Transfer Line Temp.:	280 °C
Analyzer Type:	Quadrupole
Source Temp.:	325 °C
Quad Temp.:	200 °C
Electron Energy:	70 eV
Tune Type:	PFTBA
Ionization Mode:	EI
Instrument	Agilent 7890B GC & 5977B MSD
Sample Preparation	Data was collected by extracting via HS-SPME from a 20 mL vial (cat.# 23083) capped with a magnetic screw-thread cap (cat.# 23091). The vial contained 0.5 g of baby formula and 10 mL of sodium chloride solution spiked with 2.5 ng of each analyte (5 ng/g final concentration). Internal standards were spiked at 100 ng/g. A Restek PAL SPME Arrow (120 µm carbon wide range [WR]/PDMS; cat.# 27487) was used. SPME Arrow sampling conditions: 10 min extraction time, 10 min incubation at 50 °C, 1 min desorption at 280 °C, agitation at 250 rpm.

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