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Title: Discrimination of bullet types using analysis of lead isotopes deposited in gunshot entry wounds
Authors: Klintean Wunnapuk
Takeshi Minami
Piya Durongkadech
Setsuko Tohno
Werawan Ruangyuttikarn
Yumi Moriwake
Karnda Vichairat
Pongruk Sribanditmongkol
Yoshiyuki Tohno
Keywords: Biochemistry, Genetics and Molecular Biology
Issue Date: 1-Jun-2009
Abstract: In order to discriminate bullet types used in firearms, of which the victims died, the authors investigated lead isotope ratios in gunshot entry wounds from nine lead (unjacketed) bullets, 15 semi-jacketed bullets, and 14 full-jacketed bullets by inductively coupled plasma-mass spectrometry. It was found that the lead isotope ratio of 207/206 in gunshot entry wounds was the highest with lead bullets, and it decreased in order from fulljacketed to semi-jacketed bullets. Lead isotope ratios of 208/206 or 208/207 to 207/206 at the gunshot entry wound were able to discriminate semi-jacketed bullets from lead and fulljacketed ones, but it was difficult to discriminate between lead and full-jacketed bullets. However, a combination of element and lead isotope ratio analyses in gunshot entry wounds enabled discrimination between lead, semi-jacketed, and full-jacketed bullets. © Humana Press Inc. 2009.
ISSN: 01634984
Appears in Collections:CMUL: Journal Articles

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