Julie Kowalski

Articles by Julie Kowalski

Posters & Presentations

Using Modified QuEChERS for the Extraction & Analysis of Pesticide Residues in Botanical Ingredients by GC-MS/MS
27 Oct 2025
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Posters & Presentations

Multi-Residue Pesticide Analysis in Herbal Teas Using the QuEChERS Method and Comprehensive Two-Dimensional Gas Chromatography Time-of-Flight Mass Spectrometry
27 Oct 2025
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Application Notes

Analytical Method for Polycyclic Aromatic Hydrocarbons (PAHs) in Yerba Mate Tea Using Modified QuEChERS, Solid Phase Extraction and GC-TOFMS and GC-MS/MS
01 Nov 2020
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Application Notes

Evaluation of Dispersive and Cartridge Solid Phase Extraction (SPE) Cleanups for Multiresidue Pesticides in QuEChERS Extracts of Finished Tobacco Using GCxGC-TOFMS
01 Nov 2020
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Application Notes

Comparing Pesticide Residues in Amish and Commercially Grown Strawberries and Spinach Using QuEChERS, Various dSPE Sorbents, and GC-TOFMS
01 Nov 2020
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High-Quality Analysis of Pesticides in Cannabis Using QuEChERS, Cartridge SPE Cleanup, and GCxGC-TOFMS
01 Nov 2020
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Application Notes

High Sensitivity Melamine GC/MS Analysis of Cat Food
29 Oct 2020
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Robust 9-Minute GC Analysis of Cholesterol
29 Oct 2020
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Application Notes

Fast, Simple Sample Cleanup
29 Oct 2020
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