What does a fast blue B test do?
The principal screening test used by the Brazilian Forensic Police is a colorimetric test called Fast Blue B or BB salt, in which the development of a reddish color in a basic medium indicates the presence of cannabinoids such as Δ9-THC, cannabinol (CBN) and/or cannabidiol (CBD).
What is the chemical name of fast blue salt?
3,3′-Dimethoxybiphenyl-4,4′-di(diazonium) zinc chloride
| PubChem CID | 16219275 |
|---|---|
| Molecular Formula | C14H12Cl4N4O2Zn |
| Synonyms | Fast Blue B Salt Diazo Blue B 14263-94-6 3,3′-Dimethoxybiphenyl-4,4′-di(diazonium) zinc chloride 4-(4-diazonio-3-methoxyphenyl)-2-methoxybenzenediazonium;dichlorozinc;dichloride More… |
| Molecular Weight | 475.5 |
What is fast blue BB?
General description. Fast blue BB salt hemi(zinc chloride) salt is suitable as a common coloring agent for TLC (thin layer chromatography) analysis of cannabis. It is also suitable for histochemistry studies. It is of 415.9kDa.
What does the Scott test detect the presence of?
Scott test is a simple, rapid, and low-cost preliminary test used extensively to suggest the presence of cocaine in drug seizures due to the development of a blue color.
How do you make a Duquenois reagent?
The reagent can be prepared by adding 2 grams of vanillin and 2.5 milliliters of acetaldehyde to 100 milliliters of ethanol. The test is performed by placing approximately 10 to 20 milligrams of a target substance in a glass test tube, then 10 drops of the Duquenois reagent.
What is blue salt?
Description. Persian Blue Salt is one of the rarest and oldest salts on the planet, it is extracted from salt ponds in Semnan, Iran (formerly known as Persia) that formed over 100 million years ago. The blue color comes from a mineral call sylvinite.
How does the Duquenois Levine test work?
The test is performed by placing approximately 10 to 20 milligrams of a target substance in a glass test tube, then 10 drops of the Duquenois reagent. After shaking, 10 drops of concentrated hydrochloric acid are added, and the tube is again shaken. Any color that results after the hydrochloric acid step is recorded.
What is Duquenois Levine test?
The Duquenois-Levine test for tetrahydrocannabinol (THC) has been used in the forensic science community for over 80 years. This three-part color test is one of many tests used to confirm the presence of THC.