International Journal of Medical Toxicology & Legal Medicine
  • Year: 2007
  • Volume: 9
  • Issue: 2

Determination of antimony in forensic samples by atomic absorption spectrophotometer

  • Author:
  • M. Gupta1, D.V. Moon2, M. Moharana2, Nand Lal3, A.K. Jaiswal4,
  • Total Page Count: 2
  • Page Number: 1 to 2

1Chemistry Deptt., Gorakhpur University, Gorakhpur-273009

2Indian Bureau of Mines, Bangalore – 560022.

3V.S.S.D College, Kanpur.

4Deptt. Of Chemistry, LNJN National Institute of Criminology and Forensic Science (M.H.A.), Sector – 3, Outer Ring Road, Rohini, Delhi – 110085.

*Corresponding Author.

Abstract

Determination of Antimony (Sb) is very important in forensic samples especially in gunshot residue (GSR) for identification of the shooter in a gunshot case. A simple and fast method of determination of Antimony (Sb) by Atomic Absorption Spectrophotometer (AAS) has many advantages over other methods in terms of reliability and accuracy of results. Even to some extent the result obtained is comparable with that of more sophisticated instrumental methods like Neutron Activation Analysis (NAA). Swabs can be taken from hands with a suitable acid such as Hydrochloric Acid (HCl) or Nitric Acid (HNO3) and the sample solution can be aspirated into the flame of an Atomic Absorption Spectrophotometer for determination of Antimony (Sb) content.

Keywords

Antimony, Gunshot Residue, Swab, AAS, HCl, Absorbance, Lamps Beer, Lamberts Law