Sulfuric acid-phenol and sulfuric acid-anthrone methods were used to detect polysaccharide content in shoots of Aralia elata( Miq.) Seem.,and the conversion factor to glucose was measured with refined polysaccharide...Sulfuric acid-phenol and sulfuric acid-anthrone methods were used to detect polysaccharide content in shoots of Aralia elata( Miq.) Seem.,and the conversion factor to glucose was measured with refined polysaccharides. Comprehensive evaluation was carried out by linear relationship,precision,reproducibility,stability and recovery rate. The results showed that the linear relationship between glucose concentration and absorbance was good when glucose concentration was0-40 μg/ml,and the average recovery rate was equal to or higher than 97. 00% with good reproducibility( RSD 〈 1. 60%,n = 5). It revealed that the two methods were accurate and reliable,and suitable for the determination of polysaccharide content in the shoots of A. elata. Polysaccharide content detected by sulfuric acid-phenol and sulfuric acid-anthrone methods was 19. 31% and 20. 40% respectively.展开更多
目的建立消渴丸中多糖含量的测定方法。方法以葡萄糖为对照,采用苯酚-硫酸法对消渴丸中的多糖进行显色,运用紫外-可见分光光度计测定吸光度,计算消渴丸中多糖的含量,并对该方法的精密度、重复性、加样回收率等进行分析。结果该方法测得...目的建立消渴丸中多糖含量的测定方法。方法以葡萄糖为对照,采用苯酚-硫酸法对消渴丸中的多糖进行显色,运用紫外-可见分光光度计测定吸光度,计算消渴丸中多糖的含量,并对该方法的精密度、重复性、加样回收率等进行分析。结果该方法测得消渴丸中多糖含量在0~0.0510 mg/mL的线性范围内,相关系数为0.9999。精密度实验相对标准偏差(relative standard deviation,RSD)为0.90%,重复性实验RSD为1.38%,平均加样回收率为98.77%,RSD为3.25%。结论应用苯酚-硫酸法测定消渴丸中的多糖含量准确度高、精密度良好、重复性稳定、加样回收率高,适用于消渴丸中多糖含量的测定。展开更多
基金Supported by Scientific Research Project of Education Department of Liaoning Province,China(L2017lkyfwdf-05)Public Welfare Fund Project of Department of Science and Technology of Liaoning Province,China(2016003003)
文摘Sulfuric acid-phenol and sulfuric acid-anthrone methods were used to detect polysaccharide content in shoots of Aralia elata( Miq.) Seem.,and the conversion factor to glucose was measured with refined polysaccharides. Comprehensive evaluation was carried out by linear relationship,precision,reproducibility,stability and recovery rate. The results showed that the linear relationship between glucose concentration and absorbance was good when glucose concentration was0-40 μg/ml,and the average recovery rate was equal to or higher than 97. 00% with good reproducibility( RSD 〈 1. 60%,n = 5). It revealed that the two methods were accurate and reliable,and suitable for the determination of polysaccharide content in the shoots of A. elata. Polysaccharide content detected by sulfuric acid-phenol and sulfuric acid-anthrone methods was 19. 31% and 20. 40% respectively.
文摘目的建立消渴丸中多糖含量的测定方法。方法以葡萄糖为对照,采用苯酚-硫酸法对消渴丸中的多糖进行显色,运用紫外-可见分光光度计测定吸光度,计算消渴丸中多糖的含量,并对该方法的精密度、重复性、加样回收率等进行分析。结果该方法测得消渴丸中多糖含量在0~0.0510 mg/mL的线性范围内,相关系数为0.9999。精密度实验相对标准偏差(relative standard deviation,RSD)为0.90%,重复性实验RSD为1.38%,平均加样回收率为98.77%,RSD为3.25%。结论应用苯酚-硫酸法测定消渴丸中的多糖含量准确度高、精密度良好、重复性稳定、加样回收率高,适用于消渴丸中多糖含量的测定。