Longfang Zheng

Determination of dopamine, serotonin, biosynthesis precursors and metabolites in rat brain microdialysates by ultrasonic-assisted in situ derivatization–dispersive liquid–liquid microextraction coupled with UHPLC-MS/MS

Na Wei, Xian‐En Zhao, Shuyun Zhu et al. · Talanta · 2016 · 49 citations

Life Sciences, Neuroscience, Pharmacology +11

Rapid and sensitive determination of phytosterols in functional foods and medicinal herbs by using UHPLC–MS/MS with microwave‐assisted derivatization combined with dual ultrasound‐assisted dispersive liquid–liquid microextraction

Jing Sun, Xian‐En Zhao, Jun Dang et al. · Journal of Separation Science · 2016 · 35 citations

Natural Sciences, Food Science, Analytical Chemistry +16

Sensitive and accurate determination of neurotransmitters from in vivo rat brain microdialysate of Parkinson's disease using in situ ultrasound-assisted derivatization dispersive liquid–liquid microextraction by UHPLC-MS/MS

Xian-En Zhao, Yongrui He, Ping Yan et al. · RSC Advances · 2016 · 26 citations

Life Sciences, Neuroscience, Pharmacology +10

A new combined method of stable isotope-labeling derivatization-ultrasound-assisted dispersive liquid–liquid microextraction for the determination of neurotransmitters in rat brain microdialysates by ultra high performance liquid chromatography tandem mass spectrometry

Longfang Zheng, Xian‐En Zhao, Shuyun Zhu et al. · Journal of Chromatography B · 2017 · 26 citations

Natural Sciences, Neurobiology, Neuroscience +14

Core-shell magnetic molecularly imprinted polymers used rhodamine B hydroxyproline derivate as template combined with in situ derivatization for the specific measurement of L-hydroxyproline

Longfang Zheng, Xian‐En Zhao, Wenhua Ji et al. · Journal of Chromatography A · 2017 · 26 citations

Natural Sciences, Materials Engineering, Materials Science +17