Published:Journal of Chromatographic Science,
ISSN 0021-9665 Volume 44,
Number 8, September 2006, pp. 498-503
Separating DDTs in Edible Animal Fats Using Matrix
Solid-Phase Dispersion Extraction with Activated Carbon Filter,
Toyobo-KF
Naoto Furusawa
Graduate School of Human Life Science, Osaka City University,
Osaka 558-8585, Japan
A technique is presented for the economical, routine,
and quantitative analysis of contamination by dichloro-diphenyl-trichloroethanes
(DDTs) [pp'-DDT, pp'-dichlorodiphenyl dichloroethylene, and pp'-dichlorodiphenyl
dichloreothane in beef tallow and chicken fat samples, based on
their separation using matrix solid-phase dispersion (MSPD) extraction
with Toyobo-KF, an activated carbon fiber. Toyobo-KF is a newly
applied MSPD sorbent, and it is followed by reversed-phase high-performance
liquid chromatography (HPLC) with a photodiode array detector.
The resulting analytical performance parameters [recoveries of
spiked DDTs (0.1, 0.2, and 0.4 µg/g) ≥ 81%, with relative
standard deviations of ≤ 8% (n = 5), and quantitation limits
≤ 0.03 µg/g], with minimal handling and cost-efficiency,
indicate that the present MSPD–HPLC method may be a useful
tool for routine monitoring of DDT contamination in meat.
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