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protopseudohypericin

 
National Institutes of Health

Topic mentions per year

Topic mentions per year

2001-2009
01220012009

Related topics

Related topics

2 relations

Broader (1)

Perylene
analogs & derivatives

Related mentions per year

Related mentions per year

1948-2018
19401960198020002020
protopseudohypericin
Perylene
analogs & derivatives

Papers overview

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2009
2009
LC-MS and LC-PDA analysis of Hypericum empetrifolium and Hypericum sinaicum.
Within the framework of our continuous efforts to explore Hypericum species from Jordan, we report the analysis of the major… (More)
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2009
2009
Study of active naphtodianthrone St John's Wort compounds by electrospray ionization Fourier transform ion cyclotron resonance and multi-stage mass spectrometry in sustained off-resonance irradiation…
Five well-known active naphtodianthrone constituents of Hypericum perforatum (St John's Wort) extracts have been investigated by… (More)
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2008
2008
Influence of the habitat altitude on the (proto)hypericin and (proto)pseudohypericin levels of hypericum plants from Crete.
Environmental factors are known to influence strongly the accumulation of secondary metabolites in plant tissues. In a previous… (More)
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2007
2007
Simultaneous determination of total hypericin and hyperforin in St. John's wort extracts by HPLC with electrochemical detection.
An analytical procedure was developed for the simultaneous determination of total hypericin (protopseudohypericin… (More)
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2005
2005
Simultaneous determination of protopseudohypericin, pseudohypericin, protohypericin, and hypericin without light exposure.
St. John's wort products are commonly standardized to total naphthodianthrones and hyperforin. Determination of these marker… (More)
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2003
2003
Fast high-performance liquid chromatographic analysis of naphthodianthrones and phloroglucinols from Hypericum perforatum extracts.
Hypericum perforatum L. (St. John's Wort) has been used in modern medicine for treatments of depression and neuralgic disorders… (More)
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2003
2003
Use of an on-line, precolumn photochemical reactor in high-performance liquid chromatography of naphthodianthrones in Hypericum perforatum preparations.
A method has been developed for the determination of naphthodianthrones in Hypericum perforatum L. extracts and… (More)
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2001
2001
Improved procedure for the quality control of Hypericum perforatum L.
A new, fast and reliable procedure for the quantification of the major compounds of Hypericum perforatum L. has been developed… (More)
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2001
2001
Effect of light on hypericins contents in fresh flowering top parts and in an extract of St. John's Wort (Hypericum perforatum).
St. John's Wort is a medicinal plant increasingly used for its antidepressive activity. Hypericins are considered as one of the… (More)
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