Reagent for detecting fingerprints on wet surfaces MDR-B

Reagent for detecting fingerprints on dark surfaces MDR-B. For light surfaces, it is necessary to use reagent MDR-Ch.

Finely dispersed reagent MDR-B is an aqueous suspension. The reagent adheres to the sweat-and-fat components of fingerprints and reveals them in black tones. MDR-B is used to detect fingerprints on smooth, porous, metal, plastic, including wet surfaces. This reagent is used instead of or after a physical developer. Traces can be carefully removed using traditional trace-copying materials (fingerprint film or tape). The reagent can be used to process fingerprints detected by ninhydrin to enhance their contrast.

Reagent MDR-B allows you to detect traces that are not detected by ninhydrin. In small concentrations, MDR-B enhances traces detected by silver nitrate, which is especially important for traces that were formed a long time ago.

Distinctive feature of MDR from foreign analogues:

- after detection, the trace remains for a long time (several days);

- the detected trace can be transferred to fingerprint film, lifter or tape;

- shelf life in dry form is at least 1 year. Shelf life after dilution is at least 2 weeks;

- quantity in the package: reagent per 1 liter (4 * 0.25).