Affordable Access

Pré-concentração de nitrosaminas a partir de amostras aquosas por extração em fase sólida e cromatografia capilar eletrocinética micelar

Authors
  • Sanches Filho, Pedro José
  • Zanin, Kelen Daiane
  • Caramão, Elina Bastos
  • Garcia, Ronaldo Caramão
  • Rios, Angel
  • Valcárcel, Miguel
Publication Date
Mar 01, 2003
Source
Scientific Electronic Library Online - Brazil
Keywords
Language
Portuguese
License
Unknown
External links

Abstract

This paper describes the development of a methodology for solid phase extraction (SPE) and pre-concentration of nitrosamines from aqueous samples using granular activated charcoal as stationary phase. micelar electrokinetic capillary Chromatography (MEKC) was used for the separation and identification of the nitrosamines in the extracts. Using a sample with 50 µg l-1 of each nitrosamines standards (dimethylnitrosamine, DMN; diethylnitrosamine, DEN; N-nitrosopyrrolidine, NPYR; N-nitrosopiperidine, NPIP; N-nitrosomorpholine, NMOR), the methodology showed a range of recuperation from 29 to 107% with a linear zone between 10 and 500 µg l-1. The developed methodology can be applicable to the determination of these analytes in different aqueous samples.

Report this publication

Statistics

Seen <100 times