Academic journal article Forensic Science Communications

MRM 10 (Fluorescent Dye)

Academic journal article Forensic Science Communications

MRM 10 (Fluorescent Dye)

Article excerpt

MRM 10 is a fluorescent dye used to enhance cyanoacrylate developed latent prints on various colored nonporous surfaces. A laser or alternate light source is used in conjunction with this process.

Equipment

Scales, beakers, graduated cylinder, magnetic stirrer and stirring bar, glass tray, squirt bottle or sprayer, laser or alternate light source, dark storage bottles

Materials and Chemicals

* Rhodamine 6G (dye content [greater than or equal to] 99%)

* Maxillon flavine 10GFF

* MBD

* Methanol

* Isopropanol

* Acetonitrile

* Petroleum ether

* Acetone

Mixing Procedures

Prior to mixing the MRM 10 cyanoacrylate dye solution, stock solutions A, B, and C must be prepared.

Stock Solution A

Rhodamine 6G       1 g
Methanol       1000 mL

Combine the ingredients and place on a stirring device until all the rhodamine 6G is dissolved.

Stock Solution B

Maxillon flavine 10GFF       2 g
Methanol                 1000 mL

Combine the ingredients and place on a stirring device to dissolve the maxillon flavine 10GFF.

Not all the maxillon flavine 10GFF will dissolve. …

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