Three commercial sustained-release papaverine hydrochloride products in the form of microencapsulated pellets were evaluated. Three different dissolution apparatuses were used: a continuous flow apparatus, the USP rotating basket apparatus, and a modified reciprocating basket apparatus. The frequenc
Evaluation of commercial ginseng products
โ Scribed by Lawrence E. Liberti; Ara Der Marderosian
- Publisher
- John Wiley and Sons
- Year
- 1978
- Tongue
- English
- Weight
- 386 KB
- Volume
- 67
- Category
- Article
- ISSN
- 0022-3549
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โฆ Synopsis
The variation in panaxoside content of roots and commercial products of Panax ginseng and P. quinquefolium was evaluated by a new spectrodensitometric TLC method. The method is rapid and applicable to all commercial products, and it has a relative standard deviation of 6.4%. Panaxoside patterns of slurry-filled capsules and root extracts most closely resembled those of whole roots. Tablets did not contain detectable panaxosides while teas and granules for infusion yielded only low concentrations. The wide variation among these products indicates the need for more rigid control.
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The results of the conversion of a VGO over six equilibrium commercial FCC catalysts with different formulations in a batch CREC Riser Simulator laboratory reactor at 500 and 550 8C, catalyst to oil ratio 6.1 and reaction times from 3 to 30 s, were analyzed. It was possible to define the main cataly
The optimized HPTLC of ginsenosides reported in this paper shows that the recommended solvent system has a higher resolution, greater spot capacity, and better reproducibility by comparison with the established ones in the previous literature. Detection and scanning in the fluorescence mode after vi