Pesticide analysis in coffee leaves using a quick, easy, cheap, effective, rugged and safe approach and liquid chromatography tandem mass spectrometry: Optimization of the clean-up step.

Pesticide analysis in coffee leaves using a quick, easy, cheap, effective, rugged and safe approach and liquid chromatography tandem mass spectrometry: Optimization of the clean-up step.

Journal of chromatography. A (2017-07-20)

Maria Teresa Salles Trevisan, Robert Wyn Owen, Pau Calatayud-Vernich, Andrea Breuer, Yolanda Picó

PMID28720218

ABSTRACT

An analytical method using a quick, easy, cheap, effective, rugged and safe (QuEChERS) procedure for multi-residue determination of 52 pesticides in coffee leaf extractshas been developed and validated according to SANTE/11945/2015 guidelines. Different sorbent combinations for dispersive solid phase extraction (d-SPE) clean-up as well as dispersive liquid-liquid microextraction (DLLME) were tested. The relative standard deviations (RSDs) for the recovery of 87-94% of pesticides added to coffee leaf extracts,was ≤20% for samples spiked at concentrations up to 50ng*g

MATERIALS

Product Number

Brand

Product Description

55299-U

Supelco

Supel^™ QuE, Z-Sep+ Bulk, pkg of 20 g

55237-U

Supelco

Supel^™ QuE, Citrate/Sodium Bicarbonate Tube, pk of 50

55228-U

Supelco

Supel^™ QuE, PSA Tube, pk of 50, suitable for EN 15662:2008 per BS

55284-U

Supelco

Supel^™ QuE, Z-Sep/C18 Tube, centrifuge tube volume 2 mL, pack of 100

55234-U

Supelco

Supel^™ QuE, Acetate Tube, pk of 50, AOAC^® 2007.01

55295-U

Supelco

Supel^™ QuE, Non-Buffered Tube 2, pk of 50, suitable for PFAS testing

55288-U

Supelco

Supel^™ QuE, PSA/C18 Tube, pack of 100, AOAC^® 2007.01

55287-U

Supelco

Supel^™ QuE, PSA Tube, pack of 100, AOAC^® 2007.01

55289-U

Supelco

Supel^™ QuE, PSA/C18/ENVI-Carb Tube, pack of 100, AOAC^® 2007.01

55446-U

Supelco

Supel^™ QuE, PSA/ENVI-Carb Tube 1, pk of 50, suitable for EN 15662:2008 per BS, centrifuge tube volume 15 mL , Shaker Compatible

55470-U

Supelco

Supel^™ QuE, PSA/C18 Tube, pk of 50, AOAC^® 2007.01, centrifuge tube volume 15 mL , Shaker Compatible

55474-U

Supelco

Supel^™ QuE, PSA/C18/ENVI-Carb Tube, pk of 50, AOAC^® 2007.01, centrifuge tube volume 15 mL , Shaker Compatible

55464-U

Supelco

Supel^™ QuE, PSA/ENVI-Carb Tube 2, pk of 50, suitable for EN 15662:2008 per BS, centrifuge tube volume 15 mL , Shaker Compatible

55466-U

Supelco

Supel^™ QuE, PSA Tube, pk of 50, AOAC^® 2007.01, centrifuge tube volume 15 mL , Shaker Compatible

55174-U

Supelco

Supel^™ QuE, PSA/ENVI-Carb^™ (EN) Cleanup Tube 1, pack of 100, suitable for EN 15662:2008 per BS

55172-U

Supelco

Supel^™ QuE, PSA (EN) Cleanup Tube, pack of 100, suitable for EN 15662:2008 per BS

55173-U

Supelco

Supel^™ QuE, PSA/C18 (EN) Cleanup Tube, pack of 100, suitable for EN 15662:2008 per BS

55506-U

Supelco

Supel^™ QuE, Z-Sep/C18 Tube, pk of 50, centrifuge tube volume 15 mL , Shaker Compatible

55511-U

Supelco

Supel^™ QuE, Z-Sep+ with MgSO₄Tube, pk of 50, centrifuge tube volume 15 mL , Shaker Compatible

55486-U

Supelco

Supel^™ QuE, Z-Sep+ Tube, pk of 50, centrifuge tube volume 15 mL , Shaker Compatible

55491-U

Supelco

Supel^™ QuE, Z-Sep Tube, pk of 50, centrifuge tube volume 15 mL , Shaker Compatible

55176-U

Supelco

Supel^™ QuE, PSA/ENVI-Carb^™ (EN) Cleanup Tube 2, pack of 100, suitable for EN 15662:2008 per BS

55411-U

Supelco

Supel^™ QuE, Z-Sep Tube, centrifuge tube volume 2 mL, pack of 100 ea

55408-U

Supelco

Supel^™ QuE, Z-Sep+ Tube, centrifuge tube volume 2 mL, pack of 100 ea