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                            Library & Multimedia
 Simultaneous colorimetric detection of metallic salts contained in low explosives residue using a microfluidic paper-based analytical device (μPAD)
NCJ Number
              304487
Journal

*Forensic Chemistry* Volume: 9 Dated: June 2018 Pages: 35-41
Author(s)
          Kathryn R. Chabaud;
                        Jennifer L. Thomas;
                        Michelle N. Torres;
                        Sheila Oliveira;
                        Bruce R .McCord
Date Published

June 2018
Length
              7 pages
Annotation
              This article reports on the development of a microfluidic paper-based analytical device (μPAD) that has been developed for the onsite determination of low explosives residues.
Abstract
              The device is capable of simultaneous detection of a variety of metallic salts using colorimetric detection. The μPAD was printed on chromatography paper with wax ink, allowing for the creation of a set of hydrophobic channels. Each channel contains a specific set of reagents that yields a color change upon interaction with a specific metal salt. The device is capable of performing six simultaneous tests, including the detection of metallic salts present in primer residues and pyrotechnic low explosive devices. Metals detected include lead, barium, antimony, iron, aluminum, zinc, and magnesium. Detection times were found to be less than 10 min and visual limits of detection ranged from 0.025 to 0.4 μg of these metallic compounds. The resultant paper chip was then tested against various interferences and used to examine a number of different pyrotechnic compositions. This new device should prove useful in onsite detection of post-blast residues of pyrotechnics in the field due its portability and ease of use. (Publisher Abstract)
      
  
          Additional Details
Grant Number(s)
        2012-DN-BX-K048


  
  
        
  Agencies
        NIJ-Sponsored


  
  
        
  Publication Type
        Research (Applied/Empirical)


  
  
        
  Award
        Paper microfluidic systems for rapid and inexpensive presumptive detection of drugs and explosives
    
  
  
Date Published: June 1, 2018
    
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