Protohemin (Noun)
Meaning
A reddish-brown chloride of heme; produced from hemoglobin in laboratory tests for the presence of blood.
Classification
Nouns denoting substances.
Examples
- The forensic scientist added a reagent to the suspected bloodstain, which reacted with the protohemin to produce a characteristic color change.
- In the lab, the technician carefully extracted the protohemin from the hemoglobin to confirm the presence of blood.
- The Kastle-Meyer test relies on the reaction between phenolphthalein and protohemin to detect even small amounts of blood.
- The reddish-brown color of the protohemin was a clear indication that the substance was indeed blood.
- By analyzing the protohemin, the researchers were able to determine that the ancient artifact had been used in a ritual involving animal sacrifice.