Photoegradation of indigo in dichloromethane solution
Photoegradation of indigo in dichloromethane solution
复制标题
二氯甲烷溶液中靛蓝的光降解
DOI：
10.1111/j.1478-4408.2003.tb00161.x
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发表时间：
2003
影响因子：
1.8
通讯作者：
V. Pacáková
中科院分区：
文献类型：
--
作者：
P. Novotná;J. Boon;J. V. D. Horst;V. Pacáková
研究了靛蓝的光降解，重点是降解产物。紫外-可见光谱法，高效液相色谱法和直接温度分辨质谱法用于老化样品的表征。检测到靛蓝、靛红、靛红酸酐、邻氨基苯甲酸和靛玉红以及其他未鉴别化合物。通过高效液相色谱和质谱技术鉴定了一种新的降解产物色胺酮，并提出了另外两种可能的降解产物。对合成靛蓝和天然靛蓝的降解进行了比较，并提出了天然靛蓝降解率较高的原因。
The photodegradation of indigo has been studied with emphasis on the degradation products. Ultraviolet-visible spectrometry, high performance liquid chromatography and direct temperature-resolved mass spectrometry were employed for the characterisation of aged samples. Indigo, isatin, isatoic anhydride, anthranilic acid and indirubin were detected, together with other unidentified compounds. A new degradation product, tryptanthrin, was identified by both high performance liquid chromatography and mass spectrometry techniques, and two other possible degradation products have also been suggested. The degradation of synthetic and natural indigo has been compared and an explanation for the higher rate of degradation of natural indigo proposed.