ISSN:
0935-6304
Keywords:
GC-ECD
;
Dual-column
;
Organochlorine pesticides
;
Chlorobiphenyl congeners
;
Fish
;
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The simultaneous analysis of α-HCH, β-HCH, γ-HCH, HCB, p,p′-DDD, p,p′-DDT, p,p′-DDE, o,p′-DDT, mirex, dieldrin and 62 chlorobiphenyl congeners on two parallel capillary GC columns of different polarity is described for nine Mediterranean fish species. Ten commercially available columns with stationary phases completely characterized in respect of their PCB elution patterns were considered for dual-column GC-ECD analysis. The combination of a 60 m × 0.25 mm i.d. column coated with a 0.25 μm film of 50% diphenyl dimethylsiloxane and a series combination of a 25 m × 0.25 mm i.d. column coated with a 0.25 μm film of 5% diphenyl dimethylsiloxane with a 25 m × 0.22 mm i.d. column coated with a 0.10 μm film of 1, 10-dicarba-closo-dodecarborane dimethylpolysiloxane furnished the highest number of separated chlorobiphenyl congeners (104). The dual-column GC system performed with high stability and reproducibility over a broad concentration range (1-3000 ng/g lipid) of the organochlorine compounds in the investigated fish.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jhrc.1240161212
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