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The assay was aimed to optimize the extraction process of the compound Epimedium by orthogonal experimental design. The extraction process of the compound Epimedium was optimized with water volume, extraction times and extraction time as independent variables. The extraction ratio of icariin was choosed as an evaluation index. The optimized extraction conditions were as follows, extracted in 10 times water (solid-liquid rate at 1∶10) for 3 times and heated for 1.5 h per time. These results indicated that the optimum extraction technology by the orthogonal experimental design provided experimental bases for improving the content of icariin and its industrial production. 相似文献
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本研究旨在建立高效液相色谱法测定不同粒径淫羊藿中淫羊藿苷的溶出量。采用Shimadzu VP-ODS(150 mm×4.6 mm,5 μm)为色谱柱,以乙腈:水(25:75,V/V)为流动相,流速为1 mL/min,在270 nm波长下进样10 μL进行检测,结果显示淫羊藿苷在0.08~0.40 mg/mL范围内与峰面积呈良好的线性关系(r=0.9999),相对标准偏差(RSD)为1.62%,平均回收率为97.11%~101.08%,该含量测定方法简单、快速,所测定的淫羊藿苷溶出量随着淫羊藿粒径的变小而增加,但粉碎到100目以上时,淫羊藿苷的溶出量不再随粒径的减小而增加。 相似文献
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鸡支原体对氟喹诺酮类药物的耐药判定标准研究现状 总被引:1,自引:1,他引:0
随着氟喹诺酮类药物在鸡支原体疾病治疗方面的广泛和不合理应用,鸡支原体对氟喹诺酮类药物的耐药现象越来越严重。为了规范氟喹诺酮类药物在鸡支原体疾病治疗上的应用和在一定程度上减缓耐药现象的产生,有必要制定鸡支原体对氟喹诺酮类药物的耐药标准。本文以耐药判定标准为中心,介绍了其定义和制定流程;阐述了国内外支原体对氟喹诺酮类药物的耐药判定标准的相关研究,包括野生型临界值、药效学临界值和临床临界值的相关研究。最后对当前研究的不足进行反思,并提出了自己的设想,以期为减缓鸡支原体对氟喹诺酮类的耐药提供参考。 相似文献
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