Anthrone Test
Definition
Anthrone reagent in concentrated sulphuric acid gives a blue-green colour with sucrose, glucose and other carbohydrates. Used when the bribe is a sweetened liquid, a sugar-coated article, or in food-adulteration trap cases.
- Reagent
- Anthrone in concentrated sulphuric acid
- Positive result
- Blue-green colour
- Detects
- Sucrose, glucose, other carbohydrates
- Used in
- Trap case and food-adulteration chemical analysis
Common questions
Why would investigators test for carbohydrates in a bribery trap case?+
When the marked bribe money or article has been dipped in or replaced by a sweetened substance to disguise the transaction, a positive anthrone reaction on the recovered item helps corroborate that the trap substance was handled as alleged.
How does the anthrone test differ from the phenolphthalein test used in the same trap-case context?+
Phenolphthalein testing targets sodium carbonate powder applied to currency to detect handling by the accused, while the anthrone test targets sugar content, so the two tests screen for entirely different trap substances depending on the case.
Related terms
- Form 95 / Sealed PB
- Personal-bag forwarding form used by ACB / CBI to transmit sealed exhibits (tainted notes, hand-wash bottle, panchnama articles) to the State FSL...
- Phenolphthalein Test
- Currency notes or articles are dusted with phenolphthalein powder before the trap. After acceptance, the suspect's right-hand wash in dilute sodium carbonate...
- Section 7 PC Act 1988
- Offence of a public servant accepting or attempting to accept any undue advantage (illegal gratification) other than legal remuneration. The substantive offence...
- Sodium Carbonate Hand Wash
- Mildly alkaline (about pH 11) wash solution collected in a sealed glass bottle from the suspect's hand or pocket. Alkalinity is needed...
- Trap Case
- A pre-arranged sting operation under the Prevention of Corruption Act 1988 in which a complainant pays marked tainted money or a marked...