New halogen-specific detector applied to the analysis of chlorinated fatty acids.
A new halogen-specific detection method (XSD) was tested for determination of chlorinated fatty acids in marine biota. In XSD, an increased emission of ions and electrons is caused by the high-temperature combustion of halogen-containing compounds. The detection limit of methyl dichlorooctadecanoate and the selectivity at a reactor temperature of 900 degrees C match those of electrolytic conductivity detection (ELCD). The relative standard deviation is less than 11% for > or =0.2 ng methyl dichlorooctadecanoate. An XSD chromatogram of a complex sample, chlorinated fatty acid methyl esters liberated from fish lipids, agreed with a previously obtained ELCD chromatogram.
Nilsson
G A
GA
Department of Chemistry and Biomedical Sciences, Kalmar University, Sweden. gunilla.akesson-nilsson@.hik.se
Nilsson
O
O
Odenbrand
I
I
Wesén
C
C
D002713:Chlorine / Q000032:analysis* / Q000737:chemistry; D005227:Fatty Acids / Q000032:analysis* / Q000737:chemistry; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
D005227:Fatty Acids; D002713:Chlorine