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                            Library & Multimedia
 SPECTROSCOPY OF RARE EARTH-RUHEMANN'S PURPLE COMPLEXES
NCJ Number
              142977
Journal

*Forensic Sciences* Volume: 38 Issue: 3 Dated: (May 1993) Pages: 506-520
Author(s)
          A I Mekkaoui;
                        E R Menzel
Date Published

1993
Length
              15 pages
Annotation
              The complexes Ruhemann's Purples form with europium or terbium salts are well-suited for fingerprint development on strongly fluorescent surfaces because they enhance lanthanide luminescence via intramolecular energy transfer and because the lifetime of the luminescence is longer than usual background fluorescence.
Abstract
              These complexes are particularly adaptable to time- resolved luminescence imaging. They can be used for fingerprint staining on smooth surfaces because they are readily prepared in solution, and for fingerprint development on porous surfaces, including paper. This latter procedure is similar to ninhydrin/zinc chloride treatment, except that nitrate or acetate often replace the chloride in rare earth cases, depending on the type of paper used. 5 tables, 7 figures, and 19 references
      
  
          Additional Details
Grant Number(s)
        87-IJ-CX-0030


  
  
        
  Agencies
        NIJ-Sponsored


  
  
        
  Publication Type
        Survey
    
  
  
Date Published: January 1, 1993
    
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