Pesticides in QuEChERS Extract of Sweet Potato on Rxi-5Sil MS

	Peaks
1.	Endosulfan I

GC_FF01133

Column	Rxi®-5Sil MS, 20 m, 0.18 mm ID, 0.18 µm (cat.# 43602)
Sample	Sweet potato spiked with pesticide mix and extracted with acetonitrile and Q-sep™ QuEChERS extraction salts
Injection
Inj. Vol.:	1 µL splitless (hold 1 min)
Liner:	Gooseneck splitless (4 mm) w/deact. wool (cat.# 22405)
Inj. Temp.:	250 °C
Purge Flow:	40 mL/min
Oven
Oven Temp.:	72.5 °C (hold 1 min) to 350 °C at 20 °C/min
Carrier Gas	He, constant flow
Flow Rate:	1.2 mL/min
Detector	TOFMS
Transfer Line Temp.:	300 °C
Analyzer Type:	TOF
Source Temp.:	225 °C
Electron Energy:	70 eV
Mass Defect:	-20 mu/100 u
Solvent Delay Time:	3 min
Tune Type:	PFTBA
Ionization Mode:	EI
Scan Range:	45 to 550 amu
Scan Rate:	10 scans/sec
Instrument	LECO Pegasus III GC-TOFMS
Notes	Sample: A. Extract (without cleanup step) acidified with formic acid to pH 5 B. Extract with cleanup using Q-sep™ QuEChERS dSPE cleanup tube (cat.# 26124) acidified with formic acid to pH 5

Download PDF

RELATED CHROMATOGRAM LIBRARY SEARCHES

dispersive solid phase extract

,

PSA

,

Fruits and Vegetables

,

Food

,

rxi5silms

,

QuEChERS

Printing tips! To print chromatograms full page, change the print settings in the print dialogue window of your PDF reader software: 1) "fit" or "fit to page", 2) "landscape" for wide chromatograms or "portrait" for tall chromatograms.