Gc analysis of some organochlorine pesticides using a brominated internal standard

M. Natangelo, S. Romagnano, E. Benfenati

Research output: Contribution to journalArticle

Abstract

The brominated compound1, 1-bis(4-chlorophenyl)2-bromoethane was specifically synthesized for use as internal standard (IS) in the GC analysis of some organochlorine pesticides. The IS was prepared by reacting commercially available2, 2-bis(4-chlorophenyl)ethanol with triphenylphosphine and tetrabromomethane. Organochlorine pesticides were tested together with this IS for the linearity of the analytical method in the pg range of injected pesticides (HCB, α-and γ-HCH, heptachlor, aldrin, op'-and pp'-DDT and its metabolites: op'-and pp'-DDE, op'-and pp'-DDD), using MS detection in the negative ion chemical ionization mode (NICI). GC-ECD was also used to test the IS response and linearity of the method for some of the above pesticides in the pg range of injected analytes. The synthesized IS was added and analyzed in vegetable samples (spruce needle and branch) to prove the applicability of this compound in a GC-NICI-MS analytical method for organochlorine pesticides in such samples.

Original languageEnglish
Pages (from-to)55-66
Number of pages12
JournalInternational Journal of Environmental Analytical Chemistry
Volume58
Issue number1-4
DOIs
Publication statusPublished - 1995

Fingerprint

organochlorine pesticides
Pesticides
ionization
analytical methods
pesticides
DDD (pesticide)
ions
heptachlor
DDE (pesticide)
aldrin
HCH (pesticide)
linearity
DDT (pesticide)
Ionization
analytical method
Negative ions
pesticide
Heptachlor
Aldrin
Picea

Keywords

  • gas chromatography-electron capture detection
  • gas chromatography-mass spectrometry
  • internal
  • Organochlorine pesticides
  • spruce needles
  • standard

ASJC Scopus subject areas

  • Analytical Chemistry
  • Public Health, Environmental and Occupational Health
  • Water Science and Technology
  • Environmental Chemistry
  • Soil Science
  • Health, Toxicology and Mutagenesis
  • Waste Management and Disposal
  • Pollution

Cite this

Gc analysis of some organochlorine pesticides using a brominated internal standard. / Natangelo, M.; Romagnano, S.; Benfenati, E.

In: International Journal of Environmental Analytical Chemistry, Vol. 58, No. 1-4, 1995, p. 55-66.

Research output: Contribution to journalArticle

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