Class kit to introduce forensic chemistry. The school library’s computers have been stolen. Left behind was a ransom note demanding money. Help solve the crime using thin-layer chromatography to separate the ink on the ransom note and ink found in markers tied to possible suspects. It may be possible to provide evidence as to whether or not the ransom note could have been written with a particular marker. Kit contains enough material for 15 groups. Teacher’s Manual and Student Study Guide copymasters are included.
Kit includes: • 3 felt tip markers • 15 x 30ml chromatography solvent UN1170 • 15 silica gel chromatography sheets • Capillary tubes Direct Delivery – up to 2 weeks E8R07166
B. Forensic Chemistry: Gunshot Residue
This is a two part test to determine whether a surface has been exposed to a discharged firearm. A rapid colour change takes place to verify the presence of nitrates and lead. Kit contains instructions and enough materials for 30 tests.
Kit Includes: B
• 1 x 5ml diphenylamine sulfuric acid solution UN1830 • 1 x 0.025g sodium rhodizonate • 1 x 5ml lead nitrate, 0.05M aqueous solution • 20 alcohol swabs Ideal for KS3 and 4. E8R05367
C. Shoeprint Impression Kit
This kit is designed to produce shoeprint impressions and casts of exceptional clarity and definition. It is clean and easy to use with mix in the bag powder which, once mixed with water sets within 20-40 minutes. Complete with full instructions and forensic background information on shoeprint and tyre tracks.