甘氨酸与1,2-茚满二酮在甲醇中的反应产物的质谱和时间分辨荧光光谱。
Mass spectra and time-resolved fluorescence spectroscopy of the reaction product of glycine with 1,2-indanedione in methanol.
作者信息
Alaoui I Mekkaoui, Menzel E R, Farag M, Cheng K H, Murdock R H
机构信息
Physics Department, Faculty of Sciences Semlalia, BP 2390, Marrakech 40000, Morocco.
出版信息
Forensic Sci Int. 2005 Sep 10;152(2-3):215-9. doi: 10.1016/j.forsciint.2004.08.013.
The reaction products of 1,2-indanedione (a new fluorescent fingerprint reagent) with glycine in methanol, at room temperature have been studied using excitation and emission and time-resolved fluorescence spectroscopy. Gas chromatography-mass spectroscopy (GC/MS) has also been used to determine which compounds are formed. Reaction products were identified using GC/MS as 2-carboxymethyliminoindanone (MW=203 g) and 1,2-di(carboxymethylimino)indane (MW=260 g). Identified compounds show room temperature fluorescence lifetimes of tau(1)=7.69 ns and tau(2)=1.27 ns. It is not clear yet which compound is having fluorescence lifetime of 7.69 ns and which one is showing 1.27 ns.
利用激发和发射光谱以及时间分辨荧光光谱，研究了1,2-茚满二酮（一种新型荧光指纹试剂）与甘氨酸在甲醇中于室温下的反应产物。气相色谱-质谱联用仪（GC/MS）也被用于确定生成了哪些化合物。通过GC/MS鉴定出反应产物为2-羧甲基亚氨基茚满酮（分子量 = 203 g）和1,2-二（羧甲基亚氨基）茚满（分子量 = 260 g）。鉴定出的化合物在室温下的荧光寿命分别为τ(1)=7.69 ns和τ(2)=1.27 ns。目前尚不清楚哪种化合物的荧光寿命为7.69 ns，哪种化合物的荧光寿命为1.27 ns。
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