used by biologists in cellular assays for the detection of copper, iron, and cyanide.
The basic idea of luminol is to reveal blood traces with a light producing chemical reaction between several chemicals and hemoglobin.
In Season 6, Episode 7 of CSI: Crime Scene Investigation titled "A Bullet Runs Through It, Part 1," luminol is used to detect blood in a crime scene. The forensic team sprays luminol on a crime scene and discovers blood spatter patterns that help them piece together what happened.
By The Wanderer Luminol
two scientists named Wiedemann and Schmid
Luminol was first used for murder investigations in the early 20th century. It was introduced by forensic scientists in the 1930s as a method for detecting traces of blood at crime scenes that may not be visible to the naked eye.
Luminol was discovered by German chemist Heinrich Caro in 1908.
The luminol reaction is an example of "chemiluminescence". This is when a chemical reaction yields a product in an electronically excited state (at least one electron in the product is at a level above the ground state). The excited product loses energy in the form of a photon of light when the electron drops to the ground state level. In the case of luminol the reaction is an oxidation under alkaline conditions and the reaction stops when either all the luminol, all the oxidising agent or all the alkali has been converted
Luminol is a chemical that can be used to detect blood even when it has been wiped clean. It reacts with the iron found in hemoglobin, producing a blue glow which indicates the presence of blood.
Luminol is a common chemical used to detect blood at a crime scene. It reacts with the iron in hemoglobin, causing a blue glow under UV light. This can help investigators identify blood even if it has been cleaned or hidden.
Luminol is a common chemical used to detect blood that has been wiped from a surface. It reacts with the iron present in hemoglobin to produce a blue glow, making bloodstains visible even after they have been cleaned or wiped away.
The concentration of the luminol stock solution is approximately 22.7 M.
The following substances catalyze luminol:animal proteinsblood (via the iron in hemoglobin)coppercyanidefecal matterhorseradish (via horseradish peroxidase)iron and ferrous oxide (rust)potassium permanganatesalivavegetable enzymes