Welcome to the New Restek.com! Take a tour of the new site and feel free to send us your feedback.
Your web browser will no longer be supported by Restek.com as of 30 June 2021.
To avoid any interruption in access or functionality, install a current-generation web browser now. Learn more.

Pesticides on Sweet Potato With and Without QuEChERS dSPE Cleanup on Rxi-5Sil MS

GC_FF01125_1127
ColumnRxi-5Sil MS, 20 m, 0.18 mm ID, 0.18 µm (cat.# 43602)
SampleSweet potato spiked with pesticide mix and extracted with acetonitrile and Q-sep QuEChERS EN Method 15662 extraction salts
Injection
Inj. Vol.:1.0 µL splitless (hold 1 min)
Liner:Single taper (4 mm) w/deact. wool (cat.# 22405)
Inj. Temp.:250 °C
Oven
Oven Temp.:72.5 °C (hold 1 min) to 350 °C at 20 °C/min
Carrier GasHe, constant flow
Flow Rate:1.2 mL/min
DetectorMS
Mode:
Transfer Line Temp.:300 °C
Analyzer Type:TOF
Ionization Mode:EI
Acquisition Range:45-550 amu
InstrumentAgilent/HP6890 GC
NotesA. 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.

Scan range: m/z 60, 73, 87, 129, 256 plotted