Luminol - Wikipedia
Luminol (C 8 H 7 N 3 O 2) is a chemical that exhibits chemiluminescence, with a blue glow, when mixed with an appropriate oxidizing agent.Luminol is a white-to-pale-yellow crystalline solid that is soluble in most polar organic solvents but insoluble in water.. Forensic investigators use luminol to detect trace amounts of blood at crime scenes, as it reacts with the iron in hemoglobin.
How Luminol Works - HowStuffWorks
The "central" chemical in this reaction is luminol (C8H7O3N3), a powdery compound made up of nitrogen, hydrogen, oxygen and carbon. Criminalists mix the luminol powder with a liquid containing hydrogen peroxide (H2O2), a hydroxide (OH-) and other chemicals, and pour the liquid into a spray bottle.The hydrogen peroxide and the luminol are actually the principal players in the chemical reaction ...
Luminol | Definition, Characteristics, Chemiluminescence, Blood ...
luminol, chemical compound that emits a blue fluorescent light when it reacts with certain oxidizing agents. Luminol is most widely known for its application in forensic science, in which it is used to detect the presence of blood at crime scenes.. The chemical formula of luminol is C 8 H 7 N 3 O 2.It is produced by heating 3-nitrophthalic acid …
Luminol | C8H7N3O2 | CID 10638 - PubChem
Luminol | C8H7N3O2 | CID 10638 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety ...
Luminol - Encyclopedia.com
Luminol does have applications beyond criminal investigations. It is the active ingredient in glow sticks, the plastic sticks that glow green when broken. Chemists use the compound in chromatography, a process by which the components of a mixture are separated from each other, as well as in studies of DNA patterns and other biochemical tests.
Luminol, What is Luminol? About its Science, Chemistry and …
Luminol is a chemical that exhibits blue chemiluminescence, when mixed with an appropriate oxidizing agent. It is a white to slightly yellow crystalline solid that is soluble in water and most polar organic solvents. Luminol is used by forensic investigators to detect trace amounts of blood left at crime scenes.
Luminol - an overview | ScienceDirect Topics
Luminol is the first chemiluminescent reagent applied in biochemical analysis [27]. It can be oxidized by ROS in alkalic solution, producing excited 3-aminophthalate anions, which rapidly transit to ground state and emit blue light. Luminol is usually applied in forensic analysis to determine the blood stain.
2.1: Luminol - Chemistry LibreTexts
2023年8月29日 · The model proposes two step formation of luminol diazaquinone hydroperoxide anions (LOOH –), which spontaneously decompose (via a tricyclic endoperoxide transition state) to form dinitrogen and excited 3-aminophthalate anions that luminesce. The quantum yield of luminol oxidation by this route is high giving good analytical sensitivity.
Luminol - Chemistry LibreTexts
2023年2月28日 · When luminol reacts with the hydroxide salt, a dianion is formed. The oxygen produced from the hydrogen peroxide then reacts with the luminol dianion. The product of this reaction, an organic peroxide, is very unstable and immediately decomposes with the loss of nitrogen to produce 3-aminophthalic acid with electrons in an excited state.
Luminol - an overview | ScienceDirect Topics
Luminol is frequently used as a searching or enhancement method at the crime scene. The test is based on the ability of the luminol molecule to be oxidized by the reaction of sodium perborate with an oxidizing agent such as hemoglobin (or other strong oxidizers like iron, bleach, cleaning agents, and some foodstuffs). There are other enhancement …