Clippings of Taxus canadensis were collected and divided into needles, twigs and whole clippings samples. The biomass was extracted and analysed for taxanes using high performance liquid chromatography. The addition of n-octylbenzamide as an internal standard was found to reduce the standard deviati
Liquid chromatographic analysis of cimetidine with procainamide as internal standard
β Scribed by Michael S. Ching; George W. Mihaly; D. Brian Jones; Richard A. Smallwood
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- English
- Weight
- 131 KB
- Volume
- 73
- Category
- Article
- ISSN
- 0022-3549
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β¦ Synopsis
Liquid Chromatographic Analysis of Cimetidine with Procainamide as Internal Standard
Keyphrases 0 Cimetidine-HPLC analysis in plasma and urine 0 Liquid chromatography-analysis of cimetidine in plasma and urine
To the Editor:
We recently reported in this journal a simple and sensitive liquid chromatographic assay for cimetidine in plasma and urine (I). Chromatographic separation was performed on a radially compressed column', which allowed much faster and more efficient chromatography than previously described assays (1). However, since burimamide (the internal standard) is no longer manufactured, this has rendered our assay inapplicable by other investigators. We have therefore examined the chromatography of a wide variety of other compounds, including many other Hz-antagonist analogues, and found procainamide to be the most suitable alternative internal standard to burimamide. This results in minimal modification
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Fatty acid anilides are proposed as internal standards for high performance liquid chromatographic (HPLC) analyses of medicinal plants. A one-pot synthesis of the C5 to C,, anilides is described. Reverse-phase HPLC showed that the synthesized anilides covered the optimum range of k' values for mobil