Extracted Ion Chromatograms and Spectra for Incurred Pesticides in Strawberries on Rxi-5Sil MS

GC_FF1201

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
Conc.:	captan incurred in store bought strawberries at 1,400 ppb and thiabendazole incurred in Amish strawberries at about 10 ppb
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, either Amish or store bought, 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 Q-sep Q210 dSPE tubes (cat.# 26215), shake, centrifuge. Analysis: Extracted ion chromatograms of m/z 79 and 149 for captan and m/z 174 and 201 for thiabendazole.

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RELATED CHROMATOGRAM LIBRARY SEARCHES

strawberries

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thiabendazole

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captan

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pesticides

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QuEChERS

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Q-sep

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