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Analytical Chemistry

June 09, 2020

Analytical Chemistry by PubMed.gov 

Isolated and characterized 4 new sesquiterpenes and a new pyranone glycoside from the whole plant of Erigeron breviscapus. Two of the sesquiterpenes displayed moderate neuroprotective effects against H202-induced damage in SH-SY5Y cells. Han 2019

 

Isolated and characterized two versatile UDP-glucosyltransferases from Erigeron breviscapus. Yang 2019

 

Isolated and characterized two new constituents from Erigeron breviscapus, which both possess a γ-pyrone moiety that is rare in nature. Compound 1 showed significant protective effect on H2O2-injured human umbilical vein endothelial cells. Li 2013

 

Isolated and characterized two novel isocoumarins from Erigeron breviscapus. Both compounds 1 and 2 possess a gamma-pyrone moiety and that is rare in natural products. [Article in Chinese] Li 2013

 

Developed a HPLC method for the simultaneous determination of chlorogenic acid, scutellarin, 3,5-dicaffeoylquinic acid, 4,5-dicaffeoylquinic acid in different parts of Erigeron breviscapus. [Article in Chinese] Li 2013

 

Used on-line HPLC-ABTS assay as a more sensitive method for screening and determining free radical scavengers from Erigeron breviscapus. Li 2012

 

Isolated 12 compounds from Erigeron breviscapus usingvarious chromatographic techniques; 4 for the first time. Their structures were identified on the basis of physicochemical properties and spectral analysis. [Article in Chinese] Li 2011

 

The near-infrared (NIR) spectroscopy technique provided an efficient and environmentally friendly approach for fast determination of scutellarein, from E. breviscapus, and end point control of extraction process. Wu 2011

 

Established a method of ultrasound-assisted extraction of breviscapine from Erigeron breviscapus. [Article in Chinese] He 2010

 

A rapid and efficient method coupling ultra-performance liquid chromatography with fragment-targeted multi-reaction monitoring for screening caffeic acid and its esters in a crude Erigeron breviscapus extract. Liao 2010

 

Established a chemotaxonomy method of distinguishing Erigeron breviscapus and E. multiradiatus using FTIR spectra-principal component analysis. [Article in Chinese] Zhang 2009

 

Developed a microwave-assisted extraction technique for the extraction of scutellarin from Erigeron breviscapus for rapid determination by high-performance liquid chromatography. Gao 2007

 

Developed an adsorption-desorption method of optimizing the separation process of scutellarin from the crude extracts of Erigeron breviscapus using macroporous resins. Gao 2007

 

Used near-infrared spectroscopy to identify Erigeron breviscapus. [Article in Chinese] Li 2007

 

Characterized the phenolic compounds extracted from Erigeron breviscapus by high-performance liquid chromatography/electrospray ionization mass spectrometry. Zhang 2007

 

Established a two-step purification process for scutellarin from Erigeron breviscapus by high-speed counter-current chromatography. Gao 2006

 

Applied a modified secured principal component regression (msPCR) method to detect unexpected chromatographic features in the fingerprints of Erigeron breviscapus from different geographical origins. Li 2006

 

Determined the pharmacologically active ingredients in Erigeron breviscapus using high-performance capillary electrophoresis with electrochemical detection. Chu 2005

 

Isolated a new sesquiterpene glucoside, engeside E, from the ethanol extracts of the whole plants of Erigeron breviscapus. Chen 2003

 

Developed a quantitative assay for scutellarin in Erigeron breviscapus extract by liquid chromatography-tandem mass spectrometry (negative ion mode). Qu 2001

 

Developed a liquid chromatography-tandem mass spectrometry (LC-MS-MS) method for the search, identification, and quantification of O-glycosides and their aglycones in the extract of Erigeron breviscapus. Qu 2001

 

Isolated and characterized two new phenolic acid compounds from Erigeron breviscapus. [Article in Chinese] Zhang 2001

 

Isolated and identified two glycosides from the aerial parts of Erigeron breviscapus. [Article in Chinese] Zhang 2001

 

Isolated and characterized two caffeoyl compounds with a novel basic skeleton from Erigeron breviscapus. Zhang 2000

 

Isolated and identified five flavone constituents in Erigeron brevicapsus using IR, MS, NMR, and physical data. [Article in Chinese] Zhang 2000

 

Studies on chemical constituents of dengzhanhua (Erigeron breviscapus (Vant.) Hand-Mazz). I. The isolation and identification of pyromeconic acid and a new glucoside (author's transl). [No abstract][Article in Chinese] Zhang 1981