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

55229-U

Supelco

Supel^™ QuE, PSA/C18 Tube, pk of 50, suitable for EN 15662:2008 per BS

55228-U

Supelco

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

55282-U

Supelco

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

55470-U

Supelco

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