Publications

Displaying 1 - 12 of 12

In-line Thermal Desorption and Dielectric Barrier Discharge Ionization for Rapid Mass Spectrometry Detection of Explosives

August 5, 2024

Author(s)

Thomas P. Forbes, Liz Robinson, Edward Sisco, Abigail Koss

Thermal desorption (TD) of wipe-based samples was coupled with an in-line dielectric barrier discharge ionization (DBDI) source and rugged compact time-of-flight mass spectrometer (MS) for the detection of explosives, propellants, and post-blast debris

Beyond Fentanyl Test Strips: Investigating Other Urine Drug Test Strips for Drug Checking Applications

July 3, 2024

Author(s)

Edward Sisco, Meghan Appley, Elise Pyfrom, Liz Robinson

Use of immunoassay test strips for the detection of fentanyl in drug samples has become commonplace in harm reduction, law enforcement, public health, customs, and forensic science settings for testing drug product. With the recent increase of xylazine in

An Analytical Platform for Near Real-Time Drug Landscape Monitoring using Paraphernalia Residues

March 13, 2023

Author(s)

Meghan Appley, Liz Robinson, Allison Thomson, Erin Russell, Edward Sisco

Deaths attributed to drug overdoses are constantly on the rise, but drug trends are frequently changing and often differ across geographical regions. Current analytical techniques are limited in their abilities to rapidly identify drugs that would inform

Detection and Analysis of Seed-Based Toxins using Direct Analysis in Real Time Mass Spectrometry (DART-MS) and its Variants

January 2, 2022

Author(s)

Edward Sisco, Natalie Damaso, Liz Robinson, James Robertson, Thomas P. Forbes

Detection of seed-based toxins is a need for forensic chemists when suspected poisonings occur. In these instances, seeds are often first mashed to extract the toxins, eliminating the ability to identify the seed, and therefore toxin, based on physical

Improving Particle Collection Efficiency of Sampling Wipes used for Trace Chemical Detection

December 31, 2021

Author(s)

J Greg Gillen, Jeffrey Lawrence, Edward Sisco, Matthew E. Staymates, Liz Robinson, Jennifer R. Verkouteren, Alexander Bulk

Improvement of the particle collection efficiency of sampling wipes is desirable for optimizing the performance of many wipe-based chemical analysis techniques used for trace chemical screening applications. In this note, commercially available Teflon

Investigating the Transfer of Drug Particulate onto Evidence Packaging During Routine Case Analysis

October 8, 2021

Author(s)

Edward Sisco, Liz Robinson, Rebecca Mead, Charles R Miller

The presence of drug residue and drug background in a forensic context continues to be of interest for a variety of reasons ranging from its potential use as a means for presumptive identification to ensuring the safety and well-being of drug chemists

Determination of Ethanol Concentration in Alcoholic Beverages by Direct Analysis in Real Time Mass Spectrometry (DART-MS)

January 17, 2020

Author(s)

Edward Sisco, Liz Robinson

Determination of the ethanol concentration in beverages remains a common request to forensic laboratories. While traditionally completed using headspace gas chromatography (HS-GC), this process involves lengthy run times and the need for specialized

Whats in the Bag? Analysis of Exterior Drug Packaging by TD-DART-MS to Predict the Contents

September 13, 2019

Author(s)

Edward R. Sisco, Elizabeth L. Robinson, Amber Burns, Rebecca Mead

The need for a safe and reliable presumptive test for law enforcement, first responders, and laboratory personnel is critical in the era of dangerous synthetic opioids and other novel psychoactive substances. Obtaining this type of information without

Review of the National Institute of Standards and Technology Research Program in Trace Contraband Detection

April 14, 2019

Author(s)

J Greg Gillen, Jennifer R. Verkouteren, R. Michael Verkouteren, Marcela Najarro, Edward Sisco, Matthew Staymates, Jessica L. Staymates, Robert A. Fletcher, Jeffrey Lawrence, Elizabeth Robinson, Alexander T. Bulk, Joe Bennett, Shin Muramoto, Thomas Forbes

Current national priorities in homeland security have led to an unprecedented level of utilization of explosives trace detection (ETD) systems for counterterrorism and law enforcement. Despite the widespread deployment of ETD instruments at airports

Detection of Brodifacoum and other Rodenticides in Drug Mixtures using Thermal Desorption Direct Analysis in Real Time Mass Spectrometry (TD-DART-MS)

November 21, 2018

Author(s)

Liz Robinson, Edward Sisco

In recent months, there has been increased reporting of seized drug and toxicology cases containing rodenticides, or superwarfarins, the active ingredient in rat and rodent poisons. While brodifacoum has been the most commonly encountered compound, several

A New Wipe-Sampling Instrument for Measuring the Collection Efficiency of Trace Explosives Residues

December 3, 2017

Author(s)

Elizabeth L. Robinson, Edward R. Sisco, Matthew E. Staymates, Jeffrey A. Lawrence

Trace explosives detection, a crucial component of many screening environments, commonly employs wipe-sampling. Since collection of an explosive residue is necessary for detection, it is important to have a thorough understanding of the parameters that

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