Blowfly Larval Tissues as a Secondary Detector for Determining Paraquat-Related Death in Rabbit Carcass

Lawai, Vannessa and Abdul Rahim, N.A and Zainab, Ngaini (2015) Blowfly Larval Tissues as a Secondary Detector for Determining Paraquat-Related Death in Rabbit Carcass. Journal of Forensic Sciences, 60 (6). pp. 1620-1624. ISSN 0022-1198

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Abstract

Paraquat poisoning is commonly associated with suicide or homicide in Malaysia. In a case involving advanced body decomposition, pathological analysis regarding the cause of death may become difficult or almost impossible. Insects serve as common alternative matrix for poison detection in forensic analysis. Paraquat detection via secondary bioaccumulation in fly larvae tissue has never been reported. In this study, tissues from blowfly larvae collected from a rabbit carcass with paraquat poisoning were analyzed for secondary bioaccumulation. Larvae samples were collected and analyzed using liquid-liquid extraction. The detection was performed via reduction of quaternary ammonium presence in paraquat and analyzed using gas chromatography-mass spectrometry (GC-MS) with selected ion monitoring mode (SIM mode). GC-MS showed the elution of reduced paraquat was at retention time 12.8min. Blowfly larvae tissue has proven useful as a secondary detector in paraquat-related deaths.

Item Type: Article
Uncontrolled Keywords: Blowflies; Entomotoxicology; Forensic science; Gas chromatography-mass spectrometer; Paraquat; Poisoning, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, research, Universiti Malaysia Sarawak
Subjects: Q Science > Q Science (General)
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Depositing User: Karen Kornalius
Date Deposited: 28 Jul 2016 02:05
Last Modified: 15 Mar 2017 09:51
URI: http://ir.unimas.my/id/eprint/12701

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