Dichlorobenzyl alkyl ethers as standards in environmental analysis using gas chromatography

• Main Author: Gillespie, Margaret Josephine
• Format: Doctoral or Postdoctoral Thesis
• Language: English
• Published: University of Stirling 1988
• Subjects: Gases Analysis; Gases Spectra; Fish oils; Williamson; North Atlantic
• Online Access: http://hdl.handle.net/1893/31221; http://dspace.stir.ac.uk/bitstream/1893/31221/1/Gillespie-Thesis.pdf

The ethyl-hexadecyl members of a homologous series of 2,4-dichlorobenzyl alkyl ethers were prepared using the Williamson Ether Synthesis and purified by chromatographic methods. Temperature programmed gas chromatographic retention indices were calculated for a range of chromatographic conditions of column stationary phases, temperature programme rates, and starting temperatures for wall-coated open tubular columns. The n-alkanes were used as retention index standards. The DCBE retention indices were used to calibrate a gas chromatographic identification system for organochlorine pesticides and polychlorinated biphenyls and their utility was demonstrated in the identification and measurement of organochlorine residues in a series of fish oils from North Atlantic catches.