Present address: Federal Bureau of Investigation, Laboratory Division, Chemistry Unit, 2501 Investigation Parkway, Quantico, VA 22135.
Trace Detection of Meglumine and Diatrizoate from Bacillus Spore Samples Using Liquid Chromatography/Mass Spectrometry
Article first published online: 26 APR 2012
2012 American Academy of Forensic Sciences. Published 2012. This article is a U.S. Government work and is in the public domain in the U.S.A.
Journal of Forensic Sciences
Volume 57, Issue 4, pages 923–931, July 2012
How to Cite
Swider, C., Maguire, K., Rickenbach, M., Montgomery, M., Ducote, M. J. and Marhefka, C. A. (2012), Trace Detection of Meglumine and Diatrizoate from Bacillus Spore Samples Using Liquid Chromatography/Mass Spectrometry. Journal of Forensic Sciences, 57: 923–931. doi: 10.1111/j.1556-4029.2012.02128.x
Presented in part at the 2009 Mid-Atlantic Association of Forensic Scientists, May 5–8, 2009, in Hunt Valley, MD.
This is publication number 09-18 of the Laboratory Division of the Federal Bureau of Investigation. Names of commercial manufactures are provided for identification only, and inclusion does not imply endorsement of the manufacture, or its products or services, by the FBI. The views expressed are those of the authors and do not necessarily reflect the official policy or position of the FBI or the U.S. Government.
- Issue published online: 2 JUL 2012
- Article first published online: 26 APR 2012
- Received 16 Nov. 2010; and in revised form 22 Feb. 2011; accepted 5 Mar. 2011.
- forensic science;
- Bacillus anthracis;
- Bacillus cereus;
- liquid chromatography/mass spectrometry
Abstract: Following the September 11, 2001 terrorist attacks, letters containing Bacillus anthracis were distributed through the United States postal system killing five people. A complex forensic investigation commenced to identify the perpetrator of these mailings. A novel liquid chromatography/mass spectrometry protocol for the qualitative detection of trace levels of meglumine and diatrizoate in dried spore preparations of B. anthracis was developed. Meglumine and diatrizoate are components of radiographic imaging products that have been used to purify bacterial spores. Two separate chromatographic assays using multiple mass spectrometric analyses were developed for the detection of meglumine and diatrizoate. The assays achieved limits of detection for meglumine and diatrizoate of 1.00 and 10.0 ng/mL, respectively. Bacillus cereus T strain spores were effectively used as a surrogate for B. anthracis spores during method development and validation. This protocol was successfully applied to limited evidentiary B. anthracis spore material, providing probative information to the investigators.