[유기화학] 루미놀(LUMINOL)반응(영문)

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[유기화학] 루미놀(LUMINOL)반응(영문)에 대한 자료입니다.
목차
1.Synthesis of Luminol’s precursor
2.Synthesis of Luminol
3.Chemiluminescence of luminol
4.The detection of hemoglobin
5.Detecting a pollution source
6.Titration of acid-base
7.Conclusion
본문내용
In synthetic luminol process we need luminol’s precursor. That is
5- nitrophthalhydrazide. It is synthesized by the reaction of 3-nitrophthalic acid
with hydrazine. This process is condensation reaction. First, hydrazine(N2H4) is
heated with the 3-nitrophthalic acid. This reaction is most conveniently carried
out in the high-boiling solvent triethylene glycol. To boil off excess water, the
temperature is raised to the point where the dehydration occur.
Within a few minute, this process is completed.

Luminol(C8H7O3N3) powder is mixed with a liquid containing hydrogen peroxide(H2O2), a hydroxide (OH-). In order to produce a strong glow, they need a catalyst to accelerate the process. The catalyst in this case is 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.