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Citation: ZUO Ming, LIU Chang-Cai. Determination of Oxidation Product of Dibenz-1,4-Oxazepine by HPLC-ESI-MS/MS[J]. Chinese Journal of Applied Chemistry, ;2008, 25(11): 1378-1380. shu

Determination of Oxidation Product of Dibenz-1,4-Oxazepine by HPLC-ESI-MS/MS

ZUO Ming ^, ,
LIU Chang-Cai

1.
61699 Troops of PLA, Zhijiang 443200

Corresponding author: ZUO Ming,
Received Date: 24 October 2007
Available Online: 10 January 2008

A high performance liquid chromatographic method was developed for determination of dibenz-1,4-oxazepine and its impurities.The stability of dibenz-1,4-oxazepine was investigated utilizing a Luna C18 column with a mobile phase consisted of the mixture of acetonitrile,methanol and acetic acid solution at a concentration of 0.2%(36:13:51,volume ratio).Content of the impurity product present in the sample was found to increase from below 0.1% to 0.67%,after accelerated testing,and it was identified as N-formyl-phenoxazine by high performance liquid chromatography coupled with electrospray ion-trap mass spectrometry.
- Dibenz-Oxazepine,
- oxidation product,
- high performance liquid chromatography,
- mass spectrometry
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