Fast, Easy, Reproducible Method for Planting Fingerprints for Ninhydrin, Iodine Development

• Adam M. Azman ^[1]
  1. [1] Xavier University

     Xavier University

     City of Cincinnati, Estados Unidos

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 97, Nº 2, 2020, págs. 571-573
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • Fast, reliable, well-resolved latent fingerprints can be planted by applying a thin coating of a 50:50 mixture of hand lotion and food-grade protein powder. Fingerprints can be revealed with iodine fuming or ninhydrin staining. This low-cost alternative to commercial latent print pads can be used in a variety of classroom or public settings where the chemistry of fingerprint staining is to be discussed. The current work was completed in the context of a university, nonmajors’ chemistry laboratory but can be broadly applicable for other university classes, high school classes, or public demonstrations.