Forensic analysis of gasoline in molotov cocktail using gas chromatography-mass spectrometry and chemometric procedures

Terdapat peningkatan yang ketara dalam rampasan Molotov koktel oleh Polis Diraja Malaysia, terutamanya semasa demonstrasi jalanan, ketegangan agama dan konflik sosial. Semasa penyiasatan forensik, pengumpulan maklumat dan siasatan terhadap komposisi bahan boleh menjadi penghubung antara kes-kes yang...

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Main Author:	Jamaluddin, Mohamad Ismail
Format:	Thesis
Language:	English
Published:	2014
Subjects:	R5-130.5 General works
Online Access:	http://eprints.usm.my/36432/1/Dr._Mohamad_Ismail_Jamaluddin__TSTZ_%28NN24%29.pdf
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spelling	my-usm-ep.364322019-04-12T05:25:58Z Forensic analysis of gasoline in molotov cocktail using gas chromatography-mass spectrometry and chemometric procedures 2014-10 Jamaluddin, Mohamad Ismail R5-130.5 General works Terdapat peningkatan yang ketara dalam rampasan Molotov koktel oleh Polis Diraja Malaysia, terutamanya semasa demonstrasi jalanan, ketegangan agama dan konflik sosial. Semasa penyiasatan forensik, pengumpulan maklumat dan siasatan terhadap komposisi bahan boleh menjadi penghubung antara kes-kes yang berbeza, atau sumber dan kumpulan orang yang terlibat. Tesis ini mengkaji kepelbagaian gasolin yang biasa digunakan sebagai bahan api dalam Molotov koktel dengan menggunakan kromatografi gas-spektrometri jisim (GC-MS) dan teknik kemometrik untuk analisis data lanjutan termasuk analisis komponen utama (PCA) dan analisa hiraki kelompok. Dua puluh tujuh sample telah dikumpul dari stesen minyak berbeza. Gasolin yang didapati daripada dua stesen minyak terpilih pada selang masa yang berbeza selama 28 hari telah dikaji untuk melihat perubahan profil dari masa ke masa. There has been a significant increase in the number of seizure of Molotov cocktail by the Royal Malaysia Police (RMP) during street demonstrations, religious tensions and society conflicts in Malaysia recently. In a forensic science investigation, information gathered for intelligence purposes and investigation on the composition of a material of interest may serve as a link between different cases, or to a particular source or group of people involved. This thesis studies the variability (in term of chemical profiles) of gasoline commonly used as accelerant in Molotov cocktail using gas chromatography-mass spectrometry (GC-MS) coupled with chemometric techniques for advanced data analysis including principal component analysis (PCA) and hierarchical cluster analysis (HCA). A total of 27 samples of fresh gasoline were collected from different service stations. Collection of gasoline samples from two selected service stations at different time interval over 28 days was conducted to study their profiles changes over time. 2014-10 Thesis http://eprints.usm.my/36432/ http://eprints.usm.my/36432/1/Dr._Mohamad_Ismail_Jamaluddin__TSTZ_%28NN24%29.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Sains Perubatan (School of Medical Sciences)
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	R5-130.5 General works
spellingShingle	R5-130.5 General works Jamaluddin, Mohamad Ismail Forensic analysis of gasoline in molotov cocktail using gas chromatography-mass spectrometry and chemometric procedures
description	Terdapat peningkatan yang ketara dalam rampasan Molotov koktel oleh Polis Diraja Malaysia, terutamanya semasa demonstrasi jalanan, ketegangan agama dan konflik sosial. Semasa penyiasatan forensik, pengumpulan maklumat dan siasatan terhadap komposisi bahan boleh menjadi penghubung antara kes-kes yang berbeza, atau sumber dan kumpulan orang yang terlibat. Tesis ini mengkaji kepelbagaian gasolin yang biasa digunakan sebagai bahan api dalam Molotov koktel dengan menggunakan kromatografi gas-spektrometri jisim (GC-MS) dan teknik kemometrik untuk analisis data lanjutan termasuk analisis komponen utama (PCA) dan analisa hiraki kelompok. Dua puluh tujuh sample telah dikumpul dari stesen minyak berbeza. Gasolin yang didapati daripada dua stesen minyak terpilih pada selang masa yang berbeza selama 28 hari telah dikaji untuk melihat perubahan profil dari masa ke masa. There has been a significant increase in the number of seizure of Molotov cocktail by the Royal Malaysia Police (RMP) during street demonstrations, religious tensions and society conflicts in Malaysia recently. In a forensic science investigation, information gathered for intelligence purposes and investigation on the composition of a material of interest may serve as a link between different cases, or to a particular source or group of people involved. This thesis studies the variability (in term of chemical profiles) of gasoline commonly used as accelerant in Molotov cocktail using gas chromatography-mass spectrometry (GC-MS) coupled with chemometric techniques for advanced data analysis including principal component analysis (PCA) and hierarchical cluster analysis (HCA). A total of 27 samples of fresh gasoline were collected from different service stations. Collection of gasoline samples from two selected service stations at different time interval over 28 days was conducted to study their profiles changes over time.
format	Thesis
qualification_level	Master's degree
author	Jamaluddin, Mohamad Ismail
author_facet	Jamaluddin, Mohamad Ismail
author_sort	Jamaluddin, Mohamad Ismail
title	Forensic analysis of gasoline in molotov cocktail using gas chromatography-mass spectrometry and chemometric procedures
title_short	Forensic analysis of gasoline in molotov cocktail using gas chromatography-mass spectrometry and chemometric procedures
title_full	Forensic analysis of gasoline in molotov cocktail using gas chromatography-mass spectrometry and chemometric procedures
title_fullStr	Forensic analysis of gasoline in molotov cocktail using gas chromatography-mass spectrometry and chemometric procedures
title_full_unstemmed	Forensic analysis of gasoline in molotov cocktail using gas chromatography-mass spectrometry and chemometric procedures
title_sort	forensic analysis of gasoline in molotov cocktail using gas chromatography-mass spectrometry and chemometric procedures
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Sains Perubatan (School of Medical Sciences)
publishDate	2014
url	http://eprints.usm.my/36432/1/Dr._Mohamad_Ismail_Jamaluddin__TSTZ_%28NN24%29.pdf
_version_	1747820638756667392

Forensic analysis of gasoline in molotov cocktail using gas chromatography-mass spectrometry and chemometric procedures

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