[유기화학] 루미놀(LUMINOL)반응(영문)
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분야
pdf2. Synthesis of luminal
3. Chemiluminescence of luminal
4. The detecting of hemoglobin
5. Detecting the pollution sources
6. luminol as a Chemiluminescent Indicator
7. Conclusion
Reference
The luminol is activated with an oxidant. Hydrogen peroxide solution and sodium hydroxide is
used as the activator. In the presence of an catalyst, the hydrogen peroxide is decomposed to form
oxygen and water. The iron in potassium ferricyanide is a catalyst for the reaction.
When luminol reacts with the sodium hydroxide, a dianion is formed. The oxygen produced from
the hydrogen peroxide then reacts with the luminol dianion. The product of this reaction is very
unstable and immediately decomposes with the loss of nitrogen to produce 5-aminophthalic acid
with electrons in an excited state. As the excited state relaxes to the ground state, the excess
energy is emitted as blue light.
4. The detecting of hemoglobin
Criminalists mix the luminol (C8H7O3N3) 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,
but in order to produce a strong glow, they need a catalyst to accelerate the process. The mixture
is actually detecting the presence of such a catalyst, in this case the iron in hemoglobin. If
hemoglobin and the luminol mixture come in contact, the iron in the hemoglobin accelerates a
reaction between the hydrogen peroxide and the luminol. In this oxidation reaction, the luminol
loses nitrogen and hydrogen atoms and gains oxygen atoms, resulting in a compound called 3-
aminophthalate.
J. Am. Chem., The preparation of 3-nitrophthalic acid, 1925, 47(7).
http://hau1430.tripod.com
http://science.howstuffworks.com/luminol.htm
http://en.wikipedia.org/wiki/Luminol
J. I. Creamer ; A. M. Buck. Wiley Interscience. 2008, DOI 10.1002, bio.1110
http://bint.kr/110006608120
이강웅,
신진호,
김경렬,
최원식,
이재훈.Measurement
of
PAN
using
GC/Luminol
Chemiluminescence.Korean Society for Atmospheric Environment(2002).
