DAVTECH Analytical Services (Canada) Inc

Amido Black is an extremely effective protein stain used to enhance faint or nearly invisible bloodstains to a deep blue-black color.

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Ardrox is a fluorescent dye used to stain cyanoacrylate developed prints. Using Ardrox helps view and photograph latent prints on non-porous, multi-coloured surfaces where it is typically difficult to view ridge detail of latent prints under normal lighting.

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Basic Red is a red-coloured dye used to stain cyanoacrylate-developed prints. Using Basic Red helps one view and photograph latent prints on non-porous, multi-colored surfaces where it is typically difficult to view ridge detail of latent prints under normal lighting.

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Basic Yellow is a yellow-coloured dye used to stain cyanoacrylate developed prints. Using Basic Yellow helps view and photograph latent prints on non-porous, multi-coloured surfaces where it is typically difficult to view ridge detail of latent prints under normal lighting.

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Coomassie Blue is a traditional stain for the enhancement of bloody fingerprints or footwear impressions. Coomassie Blue is for use on most porous and non-porous surfaces. This procedure may be repeated until optimal contrast is achieved.

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Crystal Violet is a simple and effective protein stain used to enhance prints on the sticky side of tape and items that are oily or greasy.

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DFO Spray, also known as 1,8-Diazafluoren-9-one, is a Ninhydrin analogue that responds to amino acids and causes latent prints to fluoresce under a forensic light source. DFO Spray is for use on porous surfaces such as paper, photos, or cardboard.

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Our Fluorescein Latent Print Fluorescent Stain is an extremely useful reagent for the enhancement of suspected bloodstains, particularly on multicoloured backgrounds. Fluorescein is a chemical mixture that causes a catalytic reaction to occur between the hemoglobin in blood and oxygen. This reaction causes a fluorescent product, Fluorescein, to fluoresce or glow in the dark when excited with ultraviolet light or ALS illumination. Fluorescein Latent Print Fluorescent Stain will fluoresce a bright yellow colour under a light between 415 and 480 nanometers.

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Our Leucocrystal Violet Aqueous Protein Stain (LCV) is commonly used to enhance blood stained fingerprints and footwear impressions. Leucocrystal Violet will not enhance a print composed solely of normal latent print residues, so it is used only in cases with blood-contaminated impressions. LCV is nearly colourless when first mixed, but is oxidized by the catalytic action of hemoglobin in the bloodstain, and will convert to a blue-coloured solution, which will then stain the bloodstain.

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Zinc Chloride is one of the traditional methods of enhancement used after the Ninhydrin processing of latent prints. It greatly improves the fluorescence of print detail when viewed under a forensic light source.

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Serial number restoration by the etching method is commonly used to recover obliterated serial numbers or other markings on firearms and other metallic weapons. When a serial number is stamped into a metal surface, the underlying metal grains are compressed and deformed deeper than the impressed number or mark. This difference in the metal crystal grains causes them to react differently to chemical etching and, in many cases, can allow them to be recovered.

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NIN-PRINT, TRITECH FORENSIC's new aerosol ninhydrin solution, is the ideal way to develop latent prints on various papers found at crime scenes. NIN-PRINT will react to the amino acids and proteins found in latent prints and will turn purple when heated.

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For those agencies preferring to mix their own Ninhydrin, we offer three sizes of Ninhydrin Crystals.  The ninhydrin method of revealing latent prints is extremely sensitive and provides distinct, contrasting prints.

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Ninhydrin is an extremely sensitive method for developing latent prints on paper documents, letters, newspaper, envelopes, wrapping paper, checks, and other porous objects at a crime scene.

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Ninhydrin is an extremely sensitive method for developing latent prints on paper documents, letters, newspaper, envelopes, wrapping paper, checks, and other porous objects at a crime scene. Ninhydrin reacts to the proteins and amino acids found in fingerprints. In addition to our traditional Ninhydrin, we offer an HFE-7100-Based formulation that is non-flammable.

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Contact Davtech

Ontario Office: Monday to Friday, 9 AM - 5 PM EST
Quebec Office: Monday to Friday, 9 AM - 5 PM EST
Alberta Office: Monday to Friday, 9 AM - 5 PM MST (-2 hrs from EST)

DAVTECH Offices

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133 Walgreen Road, Ottawa, ON K0A 1L0

Tel: (613) 831-6009, Mail: sales@davtech.ca
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Davtech - Western Region

103 - 541 Kingsview Way S.E., Airdrie, AB T4A 0C9
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Davtech - Quebec

8617 Dalton Road, Mount-Royal, QC H4T 1V5