Chromatographia

, Volume 43, Issue 11–12, pp 592–598 | Cite as

Determination of pesticides by on-line trace enrichment-reversed-phase liquid chromatography-diode-array detection and confirmation by particle-beam mass spectrometry

  • C. Aguilar
  • F. Borrull
  • R. M. Marcé
Originals

Summary

A group of pesticides has been determined by liquid chromatography with diode-array detection (DAD). The coupling of a particle-beam (PB) mass spectrometer to the outlet of the DAD enabled the identities of the pesticides to be confirmed from mass spectra obtained by electron impact ionization. On-line trace enrichment of 200 mL of sample with a PLRP-S precolumn enabled most pesticides to be determined in real samples at levels between 0.2 and 5 μg L−1 and with limits of detection (LOD) between 0.05 and 0.5 μg L−1. In the analysis of real samples, one of the pesticides studied was determined by DAD and its identity was confirmed by comparison of PB mass spectra. The use of PB-MS also enabled the detection of non-target compounds.

Key Words

Column liquid chromatography Diode-array detection Particle beam mass spectrometric detection Pesticides in water On-line solid-phase extraction (SPE) 

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Copyright information

© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH 1996

Authors and Affiliations

  • C. Aguilar
    • 1
  • F. Borrull
    • 1
  • R. M. Marcé
    • 1
  1. 1.Departament de QuímicaUniversitat Rovira i VirgiliTarragonaSpain

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