Hypericum perforatum L. (St. John's Wort) is a widely distributed herbaceous perennial plant which has been well known as a medicinal plant since antiquity. In recent years, H. perforatum has received increasing attention for the treatment of depression and other neuralgic disorders. The main consti
Electrospray liquid chromatography–mass spectrometry of the leaf extract of Rhamnus prinoides
✍ Scribed by Dr. M. M. Nindi; B. V. Kgarebe; J.-L. Wolfender; B. M. Abegaz
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 102 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0958-0344
No coin nor oath required. For personal study only.
✦ Synopsis
Three naphthalenic derivatives, four flavonoids and two of the four anthraquinones previously isolated from the leaves of Rhamnus prinoides were successfully ionised under electrospray ionisation conditions. These compounds were subsequently detected in the leaf extract of the plant using electrospray liquid chromatography-mass spectrometry (LC-ESI-MS). The potential of LC-ESI-MS for screening a leaf extract, with the focus on the suitability of the method for assaying the bitter principle, geshoidin, of this commercially important plant, is presented.
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