Comparison of Strawberry Extracts (TICs) Processed with Different QuEChERS dSPE Sorbents on Rxi-5Sil MS

GC_FF1199
Column | Rxi-5Sil MS, 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623) |
Sample | Strawberries processed with QuEChERS sample preparation |
QuEChERS Internal Standard Mix for GC/MS Analysis (cat.# 33267) | |
anthracene for quality control (cat.# 33264) | |
Diluent: | acetonitrile |
Injection | |
Inj. Vol.: | 1 µL splitless (hold 1.5 min) |
Liner: | Gooseneck Splitless (5mm) (cat.# 22973-200.1) |
Inj. Temp.: | 250 °C |
Oven | |
Oven Temp.: | 90 °C (hold 1.5 min) to 340 °C at 10 °C/min |
Carrier Gas | He, constant flow |
Flow Rate: | 2 mL/min |
Detector | MS |
Mode: | |
Analyzer Type: | TOF |
Source Temp.: | 225 °C |
Electron Energy: | 70 eV |
Ionization Mode: | EI |
Acquisition Range: | 45-550 amu |
Spectral Acquisition Rate: | 5 spectra/sec |
Instrument | LECO Pegasus 4D GCxGC-TOFMS |
Notes | Sample Preparation: Sample: 10 g of homogenized strawberries, fortified with pesticides and QuEChERS Internal Standard Mix for GC/MS Analysis (cat.# 33267). Extraction: 10 mL acetonitrile added, 1 minute shake, then addition of Q-sep Q110 (cat.# 26235), 1 minute shake, centrifuge with Q-sep 3000 Centrifuge (cat.# 26230). dSPE: Cleanup procedure according to EN 15662 method, add control standard anthracene (cat.# 33264) to 1 mL extract, add this to one of two different Q-sep dSPE tubes (either cat.# 26215 or cat.# 26217 ), shake, centrifuge. |
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