Our Leucocrystal Violet Presumptive Blood Test Kit is a highly sensitive test used in the field and forensics laboratory to indicate the presence of blood.
Our Leucocrystal Violet Presumptive Blood Test is packaged in a durable, lightweight plastic box for easy and safe transport from one crime scene to another. It includes all the premixed chemicals and supplies required to conduct the Leucocrystal Violet Presumptive Blood Test. All of the reagents are supplied in plastic dropper bottles for easy use. The kit also includes a Known Bloodstain Control Card to ensure that the test results are accurate. All kit components are also available to reorder individually as needed.
The Leucocrystal Violet Presumptive Blood Test is administered by first collecting both a positive control using the supplied Known Bloodstain Control and a negative control by testing an unstained sample. Next, a sample of the suspected stain should be collected using either a piece of filter paper or a cotton-tipped swab. One drop of each of the Leucocrystal Violet reagents is then applied to the collected sample. The results are easy to read: a positive presumptive result causes the sample to turn a deep blue color.
Plastic Kit Box, 8" L x 4" W x 1.75" H
Distilled Water 1.5 oz Dropper Bottle
Leucocrystal Violet Reagent A 1.5 oz Dropper Bottle
Leucocrystal Violet Reagent B 1.5 oz Dropper Bottle
Box of Filter Paper
Box of 3 Cotton-Tipped Swabs
Known Bloodstain Control
Kit Instructions Affixed to Inside of the Box