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Citation: FANG Xiaowei, ZHONG Tao, YAO Guocan, GAO Xiang, YANG Meiling, LI Hui, LE Zhanggao, ZHANG Xinglei. Comparison of Ambient Temperature and Thermal Surface Desorption Atmospheric Pressure Chemical Ionization Mass Spectra for the Pericarp of Navel Orange[J]. Chinese Journal of Applied Chemistry, ;2015, 32(10): 1201-1207. doi: 10.11944/j.issn.1000-0518.2015.10.150092 shu

Comparison of Ambient Temperature and Thermal Surface Desorption Atmospheric Pressure Chemical Ionization Mass Spectra for the Pericarp of Navel Orange

1.
Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Science and Technology, Nanchang 330013, China

Corresponding author: LE Zhanggao, ZHANG Xinglei,
Received Date: 11 March 2015
Available Online: 13 May 2015
Fund Project: 国家自然科学基金(21365002,21465002) (21365002,21465002)长江学者和创新团队发展计划项目(IRT13054) (IRT13054)教育部新世纪优秀人才支持计划(NCET-11-0999) (NCET-11-0999)江西省高等学校科技落地计划项目(KJLD13051) (KJLD13051)江西省科技支撑计划(20144BBB70008)资助 (20144BBB70008)

Comparison between ambient temperature and thermal surface desorption atmospheric pressure chemical ionization mass spectrometry (DAPCI-MS) was made with pericarp of navel orange.The main components including aroma compounds,flavanones and sugars were identified by tandem mass spectrometry.Following the method of thermal DAPCI-MS,the mass spectra of epicarp were obtained and were further analyzed by principle component analysis (PCA),which allows a confident discrimination of navel orange samples from three different origins.The results show that aroma compounds are desorbed effectively by ambient temperature DAPCI-MS,while flavanones,sugars and its derivatives are analyzed easily by thermal DAPCI-MS.DAPCI-MS is attractive by showing the advantage of high sensitivity and analytical speed,and thus provides a possible new method to rapidly screen the quality of agricultural products and distinguish origins.
- surface desorption atmospheric pressure chemical ionization,
- mass spectrometry,
- principal component analysis,
- navel orange
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