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.

Permethrins Resolution Stability on Low-Pressure GC Column Kit (500 Injections, Spinach Matrix)

PeakstR (min)Conc.
Parent IonProduct IonCollision Energy
ColumnLow-pressure GC column kit (factory-coupled restrictor column [5 m x 0.18 mm ID] and Rtx-5ms analytical column [15 m, 0.53 mm ID, 1 µm plus 1 m integrated transfer line on the outlet end]) (cat.# 11800)
SampleQuEChERS performance standards kit (cat.# 31152)
Conc.:9 µg/mL
Inj. Vol.:1 µL split (split ratio 100:1)
Liner:Topaz 4.0 mm ID single taper inlet liner w/ wool (cat.# 23447)
Inj. Temp.:250 °C
Oven Temp.:70 °C (hold 1 min) to 320 °C at 35 °C/min (hold 5 min)
Carrier GasHe, constant flow
Flow Rate:2 mL/min
DetectorTSQ 8000
Transfer Line Temp.:290 °C
Analyzer Type:Quadrupole
Source Temp.:325 °C
Solvent Delay Time:2 min
InstrumentThermo Scientific TSQ 8000 Triple Quadrupole GC-MS
NotesThe spinach matrix was prepared from 10 g of homogenized spinach extracted with QuEChERS EN salts (cat.# 25849) and cleaned up with dSPE containing magnesium sulfate, PSA, C18-EC, and GCB (cat.# 26219). The matrix extract was then spiked with 30 μL of each of the QuEChERS performance mixes for a final concentration of 9 ppm, and the internal standard triphenyl phosphate (TPP) was added at a final concentration of 10 ppm.
Between the first and last run, 500 injections of spinach extract spiked with internal standard (TTP) were made.