Determination of 5‐hydroxynaphthoquinones in phytotherapeutic Drosera preparations by differential pulse polarography
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منابع مشابه
Selective Determination of Trace-Bismuth by Extraction-Differential Pulse Polarography in Non-Aqueous Media
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The method is based on the separation of Tl(I) as Tl(2)HPMo(12)O(40), stripping of the molybdate, and measurement of the peak current in differential-pulse polarography of the molybdenum. The calibration graph is linear over the range 2-12 ppm of thallium. The relative standard deviation is 1.2% (7 replicates each containing 500 microg of thallium). The current due to reduction of the molybdenu...
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ژورنال
عنوان ژورنال: Phytochemical Analysis
سال: 1999
ISSN: 0958-0344,1099-1565
DOI: 10.1002/(sici)1099-1565(199903/04)10:2<64::aid-pca434>3.3.co;2-k