Forensic analysis of inorganic anions from post-blast pyrotechnic residues
Increase bombing activities in recent years have raised much awareness amongst forensic scientists of the importance of post-blast investigation. Analysis of post blast bomb residues is useful in identification of explosives and establishing link to its origin. The use of pyrotechnic in homemade exp...
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my.utm.500062018-10-14T08:26:46Z http://eprints.utm.my/id/eprint/50006/ Forensic analysis of inorganic anions from post-blast pyrotechnic residues Ahmad, Umi Kalsom Choon, Yoong Liew Mohamed Huri, Mohamad Afiq Shaikh Abdullah, Shaikh Abdul Adzis Q Science (General) Increase bombing activities in recent years have raised much awareness amongst forensic scientists of the importance of post-blast investigation. Analysis of post blast bomb residues is useful in identification of explosives and establishing link to its origin. The use of pyrotechnic in homemade explosives has emerged as a new threat to society. In this study, pre and post-blast inorganic anions from pyrotechnic residues were analyzed using ion chromatography with conductivity detection. Inorganic anions were separated using Metrosep A SUPP 5 anion column with NaHCO3 - Na2CO3 eluent. Eight anions (fluoride, chloride, nitrite, chlorate, nitrate, phosphate, sulfate and thiocyanate) were successfully separated within 40 min. Good linearity of calibration graph and LOD ranged from 4.8 to 21.0 ppb were achieved. Chemical anionic constituents of the fireworks were found to differ from each other. However, they were found to be common in nitrate and chlorate as oxidizer. Ratio of oxidizer was also found to be much higher than other anions. Post-blast samples showed drastic reduction in oxidizer concentration Penerbit UTM 2013 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/50006/1/UmiKalthomAhmad2013_Forensicanalysisofinorganic.pdf Ahmad, Umi Kalsom and Choon, Yoong Liew and Mohamed Huri, Mohamad Afiq and Shaikh Abdullah, Shaikh Abdul Adzis (2013) Forensic analysis of inorganic anions from post-blast pyrotechnic residues. Jurnal Teknologi (Sciences and Engineering), 62 (3). pp. 77-82. ISSN 0127-9696 https://dx.doi.org/10.11113/jt.v62.1892 DOI: 10.11113/jt.v62.1892 |
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Q Science (General) Ahmad, Umi Kalsom Choon, Yoong Liew Mohamed Huri, Mohamad Afiq Shaikh Abdullah, Shaikh Abdul Adzis Forensic analysis of inorganic anions from post-blast pyrotechnic residues |
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Increase bombing activities in recent years have raised much awareness amongst forensic scientists of the importance of post-blast investigation. Analysis of post blast bomb residues is useful in identification of explosives and establishing link to its origin. The use of pyrotechnic in homemade explosives has emerged as a new threat to society. In this study, pre and post-blast inorganic anions from pyrotechnic residues were analyzed using ion chromatography with conductivity detection. Inorganic anions were separated using Metrosep A SUPP 5 anion column with NaHCO3 - Na2CO3 eluent. Eight anions (fluoride, chloride, nitrite, chlorate, nitrate, phosphate, sulfate and thiocyanate) were successfully separated within 40 min. Good linearity of calibration graph and LOD ranged from 4.8 to 21.0 ppb were achieved. Chemical anionic constituents of the fireworks were found to differ from each other. However, they were found to be common in nitrate and chlorate as oxidizer. Ratio of oxidizer was also found to be much higher than other anions. Post-blast samples showed drastic reduction in oxidizer concentration |
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Article |
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Ahmad, Umi Kalsom Choon, Yoong Liew Mohamed Huri, Mohamad Afiq Shaikh Abdullah, Shaikh Abdul Adzis |
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Ahmad, Umi Kalsom Choon, Yoong Liew Mohamed Huri, Mohamad Afiq Shaikh Abdullah, Shaikh Abdul Adzis |
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Ahmad, Umi Kalsom |
title |
Forensic analysis of inorganic anions from post-blast pyrotechnic residues |
title_short |
Forensic analysis of inorganic anions from post-blast pyrotechnic residues |
title_full |
Forensic analysis of inorganic anions from post-blast pyrotechnic residues |
title_fullStr |
Forensic analysis of inorganic anions from post-blast pyrotechnic residues |
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Forensic analysis of inorganic anions from post-blast pyrotechnic residues |
title_sort |
forensic analysis of inorganic anions from post-blast pyrotechnic residues |
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Penerbit UTM |
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2013 |
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http://eprints.utm.my/id/eprint/50006/1/UmiKalthomAhmad2013_Forensicanalysisofinorganic.pdf http://eprints.utm.my/id/eprint/50006/ https://dx.doi.org/10.11113/jt.v62.1892 |
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