1H NMR determination of hypericin and pseudohypericin in complex natural mixtures by the use of strongly deshielded OH groups

Analytica Chimica Acta

Volumn 607, Issue 2, 2008, Pages 219-226

  Tatsis, Evangelos C ^a   Exarchou, Vassiliki ^a   Troganis, Anastassios N ^a   Gerothanassis, Ioannis P ^a  

^a UNIVERSITY OF IOANNINA   (Greece)

Author keywords

1H nuclear magnetic resonance; Hypericin; Hypericum perforatum; Intramolecular hydrogen bond; peri Hydroxyl groups; Pseudohypericin

Indexed keywords

COMPLEXATION; HYDROGEN BONDS; MIXTURES; MOLECULAR INTERACTIONS; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY;

HYPERICIN; HYPERICUM PERFORATUM; INTRAMOLECULAR HYDROGEN BOND; PERI HYDROXYL GROUPS; PSEUDOHYPERICIN;

ORGANIC COMPOUNDS;

HYDROXYL GROUP; HYPERICIN; HYPERICUM PERFORATUM EXTRACT; PSEUDOHYPERICIN; DRUG DERIVATIVE; PERYLENE; PLANT EXTRACT;

ARTICLE; COMPARATIVE STUDY; CULTIVAR; HIGH PERFORMANCE LIQUID CHROMATOGRAPHY; HYPERICUM PERFORATUM; LIQUID CHROMATOGRAPHY; MASS SPECTROMETRY; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; PRIORITY JOURNAL; PROTON NUCLEAR MAGNETIC RESONANCE; QUANTITATIVE ANALYSIS; ULTRAVIOLET SPECTROSCOPY; CHEMISTRY; HYDROGEN BOND; HYPERICUM; NUCLEAR MAGNETIC RESONANCE; ULTRAVIOLET SPECTROPHOTOMETRY;

HYPERICUM PERFORATUM;

CHROMATOGRAPHY, LIQUID; HYDROGEN BONDING; HYPERICUM; MASS SPECTROMETRY; NUCLEAR MAGNETIC RESONANCE, BIOMOLECULAR; PERYLENE; PLANT EXTRACTS; SPECTROPHOTOMETRY, ULTRAVIOLET;

EID: 37649017705     PISSN: 00032670     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.aca.2007.11.040     Document Type: Article

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