Ultra performance liquid chromatography atmospheric pressure photoionization high resolution mass spectrometric method for determination of multiclass pesticide residues in grape and mango juices

Pragney Deme, Vijayasarathi V.R. Upadhyayula

Research output: Contribution to journalArticlepeer-review

Abstract

A novel analytical method was developed for determination of organochlorine, synthetic pyrethroid, organophosphate and carbamate pesticide residues in fruit juices using ultra performance liquid chromatography-atmospheric pressure photoionization-high resolution mass spectrometry (UPLC-APPI-HRMS). The analytes were extracted from fruit juices by dispersive solid-phase extraction using multi-walled carbon nanotubes (MWCNTs). The analysis was carried out in full scan mode using dual ionization mode of APPI in the mass range of 100-650 units. The limit of detection and limit of quantification values for the pesticides were in the range of 0.025-0.15 ng mL-1 and 0.1-0.5 ng mL-1 respectively. The matrix effect of the method was found to be low and extraction recoveries were in the range of 60-110%. Some of the real fruits juice samples showed the presence of some pesticides in the range of 6.5-24.8 ng L-1.

Original languageEnglish (US)
Pages (from-to)1142-1149
Number of pages8
JournalFood Chemistry
Volume173
DOIs
StatePublished - Apr 1 2015
Externally publishedYes

Keywords

  • Atmospheric pressure photo ionization
  • Fruit juices
  • Liquid chromatography-mass spectrometry
  • Multiwalled carbon nanotubes
  • Pesticide residues

ASJC Scopus subject areas

  • Analytical Chemistry
  • Food Science

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