L. J. Chen

Analysis of the Pollen Morphology and Cluster of Different Pummelo Germplasms

Dongxing Zhao, Guorui Feng, Zixiang Yang, Guiqi Bi et autres

The pollen morphological characteristics of 16 pummelos and 4 other citrus germplasms from Vietnam, Thailand, and China were observed using scanning electron microscopy (SEM). Observations included equatorial view, polar view, and exine ornamentation. The results showed that the pollen of all tested …

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First Report of Papaya ringspot virus Infecting Bitter Gourd in China

Lisha Zhu, Ting Yang, L. J. Chen, Honghui Lin et autres

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HSCCC‐MS Study of Flavonoids in the Extracts from the Seeds of Oroxylum indicum

L. J. Chen, Hang Song, David E. Games, I. Sutherland

In this study, two analytical high‐speed countercurrent chromatography (HSCCC) instruments, interfaced directly with electrospray ionization and atmospheric pressure chemical ionization mass spectrometry, were explored for the separation of a mixture of three standard flavonoids. Hexane–ethyl acetate–methanol–water solvent systems with different ratios were …

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Analysis of Flavonoids in the Extracts from the Seeds of Oroxylum indicum Using High Speed Countercurrent Chromatography/Mass Spectrometry

L. J. Chen, Hang Song, Qizhen Du, Jianrong Li et autres

The HSCCC was successfully interfaced with a mass spectrometer possessing APCI‐ and ESI‐MS mode for the first time. The coupling system gave an excellent separation of ethyl acetate extract from the seeds of O. indicum using a solvent system composed of hexane‐ethyl …

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