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Processing Chemicals for Bloody Prints

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  1. Acid Yellow 7

    Acid Yellow 7

    Acid Yellow 7 stain is one of the newer and more effective fluorescent stains used to enhance bloody footwear and fingerprint impressions on nonporous surfaces. Staining reveals a yellowish colored print which fluoresces under blue-green light (400-490 nm). When lifted with a white gelatin lifter the impression will often reveal enhanced fluorescence. Learn More
  2. Amido Black

    Amido Black

    Amido black is an effective blood reagent when latent or difficult to see blood stains are present. AB will develop exceptional fine detail as needed in bloody fingerprints and footwear impressions. Amido black reacts with blood proteins to create a deep blue color change.

    The water based formulation includes a blood fixative in the ready to use application, perfect for crime scene processing.

    The methanol based formulation will develop sharper detail in the three part application, this technique is more suitable for lab processing. 

    Learn More

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