To improve the purity of the total phloroglucinols from Dryopteris crassirhizoma extracts, the separation and purification conditions of the total phloroglucinols from Dryopteris crassirhizoma were studied with DM-130...To improve the purity of the total phloroglucinols from Dryopteris crassirhizoma extracts, the separation and purification conditions of the total phloroglucinols from Dryopteris crassirhizoma were studied with DM-130 macroporous adsorption resin in this study. Adsorption rate, elution rate and purity of the total phloroglucinols were used as indexes to investigate the adsorption and desorption capacity of the total phloroglucinols with DM-130 macroporous adsorption resin. Through the study, the optimum sample concentration of the total phloroglucinols and maximum sample volume were 1.5 mg·mL^-1 and 7 BV (210 mL), respectively. The optimum desorption conditions were achieved by using 80% ethanol as desorption solvent at elution flow rate of 1.0 mL·min^-1. The result showed DM-130 macroporous adsorption resin performed effective adsorption and desorption. After purification, the purity of the total phloroglucinols increased by 11.5-fold.展开更多
目的建立紫外分光光度法测定广之源胶囊中总皂苷含量的分析方法。方法样品采用85%乙醇超声提取,提取液经DM-130大孔树脂柱,采用水-乙醇溶剂系统对样品的皂苷成分进行洗脱、纯化、富集,以人参皂苷Re为对照品,利用紫外可见分光光度法测定...目的建立紫外分光光度法测定广之源胶囊中总皂苷含量的分析方法。方法样品采用85%乙醇超声提取,提取液经DM-130大孔树脂柱,采用水-乙醇溶剂系统对样品的皂苷成分进行洗脱、纯化、富集,以人参皂苷Re为对照品,利用紫外可见分光光度法测定其总皂苷含量。结果该人参皂苷Re在0~191.2μg范围内的线性回归方程Y=0.0043X-0.0057(R^2=0.9995),相对标准偏差(relative standard deviation,RSD)为1.3%和2.3%,加样回收率为99.7%。结论该方法简单、快捷、高效,适用于广之源胶囊的总皂苷含量测定。展开更多
基金Supported by the National Natural Science Foundation of China(31070291)
文摘To improve the purity of the total phloroglucinols from Dryopteris crassirhizoma extracts, the separation and purification conditions of the total phloroglucinols from Dryopteris crassirhizoma were studied with DM-130 macroporous adsorption resin in this study. Adsorption rate, elution rate and purity of the total phloroglucinols were used as indexes to investigate the adsorption and desorption capacity of the total phloroglucinols with DM-130 macroporous adsorption resin. Through the study, the optimum sample concentration of the total phloroglucinols and maximum sample volume were 1.5 mg·mL^-1 and 7 BV (210 mL), respectively. The optimum desorption conditions were achieved by using 80% ethanol as desorption solvent at elution flow rate of 1.0 mL·min^-1. The result showed DM-130 macroporous adsorption resin performed effective adsorption and desorption. After purification, the purity of the total phloroglucinols increased by 11.5-fold.
文摘目的建立紫外分光光度法测定广之源胶囊中总皂苷含量的分析方法。方法样品采用85%乙醇超声提取,提取液经DM-130大孔树脂柱,采用水-乙醇溶剂系统对样品的皂苷成分进行洗脱、纯化、富集,以人参皂苷Re为对照品,利用紫外可见分光光度法测定其总皂苷含量。结果该人参皂苷Re在0~191.2μg范围内的线性回归方程Y=0.0043X-0.0057(R^2=0.9995),相对标准偏差(relative standard deviation,RSD)为1.3%和2.3%,加样回收率为99.7%。结论该方法简单、快捷、高效,适用于广之源胶囊的总皂苷含量测定。