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Search Publications by: Matthew E Staymates (Fed)

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Displaying 26 - 50 of 82

DART-MS analysis of inorganic explosives using high temperature thermal desorption

May 4, 2017
Author(s)
Thomas P. Forbes, Edward R. Sisco, Matthew E. Staymates, John G. Gillen
An ambient mass spectrometry (AMS) platform coupling Joule heating thermal desorption (JHTD) and direct analysis in real time (DART) was developed, generating discretely pulsed rapid heating ramps and elevated temperatures for the detection of inorganic

Standardized Measurements of Collection Efficiency from Wipe-Sampling of Trace Explosives

April 10, 2017
Author(s)
Jennifer R. Verkouteren, Jeffrey A. Lawrence, Matthew E. Staymates, Edward R. Sisco
One of the limiting steps to detecting traces of explosives at screening venues is effective collection of the sample. Wipe-sampling is the most common procedure for collecting traces of explosives, and standardized measurements of collection efficiency

Biomimetic Sniffing with an Artificial Dogs Nose Leads to Improvements in Vapor Sampling and Detection

December 1, 2016
Author(s)
Matthew E. Staymates, William A. MacCrehan, Jessica L. Staymates, John G. Gillen, Brent Craven, Rod Kunz, Ted Mendum, Ta-Hsuan Ong
This work presents fluid flow visualization studies and chemical detection experiments using an 3D printed anatomically-correct biomimetic canine nose from a female Labrador retriever. Schlieren imaging, high-speed videography, along with flow

Particle Fabrication Using Inkjet Printing onto Hydrophobic Surfaces for Optimization and Calibration of Trace Contraband Detection Sensors

November 24, 2015
Author(s)
John G. Gillen, Marcela N. Najarro, Matthew E. Staymates, Scott A. Wight, Marlon L. Walker, Jennifer R. Verkouteren, Eric S. Windsor, Aaron A. Urbas
A method has been developed to fabricate patterned arrays of micrometer-sized monodisperse solid particles of ammonium nitrate on hydrophobic silicon surfaces using inkjet printing. The method relies on dispensing one or more microdrops (typically 50 pL

The effect of reusing wipes for particle collection

November 4, 2015
Author(s)
Jessica L. Staymates, Matthew E. Staymates, Jeffrey A. Lawrence
This work addresses the need for a method to measure the collection efficiency performance of surface wipe materials as a function of wipe reuse number. The primary purpose of this study is to investigate the effect of wipe reuse, i.e. the number of times

Quantifying Trace 2,4,6-Trinitrotoluene (TNT) in Polymer Microspheres

October 16, 2015
Author(s)
Timothy M. Brewer, Robert A. Fletcher, Matthew E. Staymates
Well characterized test materials are essential for validating the performance of current trace explosive detection systems. Explosive encapsulated microspheres have proven to be a valuable test material for trace explosive detection because their precise