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[Two-dimensional thin layer chromatographic-colorimetric determination of Astragalus saponin 1 in suanqi oral liquid]
1Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing.
Abstract:
Extracted by n-butanol and separated by two-dimensional TLC, the astragalus saponin 1 in Suanqi Oral Liquid was determined by vanillin-perchloric acid colorimetric method. The recovery and RSD were 96.3% (n = 5) and 0.75% respectively.
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