Armando Alcaraz

TL;DR: The utility of this methodology for attributing VR samples to a particular production method is demonstrated, demonstrating the utility of the CAS in synthesized batches of crude VR in diverse batches and matrices.

TL;DR: The work described herein represents the first report on the use of TMO·BF4 as a viable, stable and safe agent for the methylation of phosphonic acids and their half esters and within the context of an OPCW Proficiency Test sample analysis.

TL;DR: In this article, an illegal shipment of a chemical suspected to be an illicit drug was interdicted, and the substance was identified as tetrodotoxin, a potent marine neurotoxin.

TL;DR: The Livermore Forensic Science Center has conducted analyses of nuclear-related samples in conjunction with domestic and international criminal investigations as mentioned in this paper, including nuclear smuggling and the proliferation of alleged fissionable materials, nonradioactive hoaxes such as Red Mercury, and the interdiction of illegal laboratories engaged in methamphetamine synthesis.

TL;DR: The sourcing of VR present in food based on chemical analysis of attribution signatures by liquid chromatography-tandem mass spectrometry (LC-MS/MS) combined with multivariate data analysis is described.