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比色法测定桔梗中桔梗总皂苷的含量 总被引:1,自引:0,他引:1
目的建立桔梗中桔梗总皂苷的含量测定方法。方法以香草醛.高氯酸为显色剂,桔梗皂苷D为对照品,采用比色法测定。结果比色法测定的线性范围为0.096~0.672mg,相关系数为0.99997,平均加样回收率为96.8%(RSD=3.87%,n=9)。结论本法测定准确,重复性好,可用于桔梗药材中桔梗总皂苷的含量测定。 相似文献
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桔梗总皂苷的提取及分析 总被引:2,自引:0,他引:2
本实验以水作为溶剂,利用超声波法制备桔梗总皂苷,建立了超声波-水提法制备桔梗总皂苷的方法,以桔梗皂苷D作为标准品,采用比色法测定其纯度.结果比色法测定的线性方程为y=0.003 7x+0.009 8,相关系数为r=0.999 5,RSD=2.7%.此种方法测得桔梗总皂苷含量为5.1%,纯度为53.38%.结果表明该方法可操作性强,重现性好,可以作为桔梗总皂苷的提取及分析方法. 相似文献
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不同海拔高度桔梗药材中3种桔梗皂苷含量的测定 总被引:1,自引:0,他引:1
目的:研究海拔高度对桔梗中桔梗皂苷D、去芹菜糖桔梗皂苷D和桔梗皂苷D2含量的影响。方法:采用HPLC-ELSD法测定3种桔梗皂苷的含量。结果:海拔高度对桔梗皂苷的含量有影响。结论:海拔高度可为研究桔梗药材的质量评价提供参考依据。 相似文献
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一测多评法同时测定桔梗中3种桔梗皂苷的含量 总被引:3,自引:3,他引:0
目的 探索一测多评法应用于同时测定桔梗中3种桔梗皂苷含量的可行性。方法 采用HPLC-ELSD为检测手段,考察桔梗提取物在不同色谱系统和不同色谱柱上的色谱行为,确定3种待测成分的色谱峰定位方法。以桔梗皂苷D为内标,建立其与桔梗皂苷D3、桔梗皂苷E的相对校正因子;通过外标法测定桔梗皂苷D的含量,并由建立的相对校正因子计算出其他2种桔梗皂苷的含量;将计算的结果与外标法测定结果相比较,以验证“一测多评”法在桔梗质量评价中的可行性。结果 方法重现性和耐用性良好,用于10批桔梗药材的含量测定,计算结果与外标法测定结果无显著差异。结论 一测多评法可用于同时测定桔梗中多种皂苷的含量。 相似文献
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反相高效液相色谱法测定桔梗中3种三萜皂苷类化合物的含量 总被引:1,自引:0,他引:1
目的建立RP-HPLC法同时测定桔梗中去芹糖桔梗皂苷E、桔梗皂苷E和桔梗皂苷D3的含量。方法以Hypersil-ODS(4.6 mm×250 mm,5μm)为色谱柱,流动相为乙腈(A)-水(B),梯度洗脱,流速为0.8 mL.min-1,检测波长210 nm,温度为室温。结果去芹糖桔梗皂苷E、桔梗皂苷E和桔梗皂苷D3分别在4.160~83.2、10.75~215.0、4.080~81.6μg.mL-1与峰面积线性关系良好,平均回收率分别为96.5%、97.0%和97.3%,RSD分别为1.2%、1.0%和1.3%。结论该方法快速稳定且分离度好,为桔梗的质量控制提供可借鉴的分析方法。 相似文献
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A comparative study on commercial, botanical gardens and wild samples of the roots of Platycodon grandiflorum by HPLC analysis. 总被引:4,自引:0,他引:4
Thirteen commercial samples of Platycodi radix of Platycodon grandiflorum, were collected from China (5 kinds), Korea (5 kinds), and Japan (3 kinds) along with 8 kinds of botanically cultivated Platycodi radix, 3 kinds of wild Platycodi radix collected from different places in Japan. HPLC analysis showed that the commercial botanical and wild samples of P. radix all contained platycodins and a total of twelve peaks were identified by co-HPLC anlaysis with authentic samples isolated earlier from this laboratory. The peak purity and identify were checked with a PDA. The contents of the major saponins, platycodins A, C, D were determined and the peak-area ratios of platycodins A, C, D were shown to be correlated with their sources of origin. The commercial samples from China and Korea each gave a distinct HPLC pattern with peak-area ratio of platycodins A, C, D at 1:2:3 and 2:4:1, respectively. HPLC analysis showed that those on the Japanese market were either imported from China or Korea based upon their HPLC patterns while the Japanese botanical garden or wild type samples gave a higher total saponin content with the peak-area ratio of platycodins A, C, D at 1:2:1. 相似文献
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Saeki T Nikaido T 《Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan》2003,123(6):431-441
Platycodon root, one of the most important Chinese herbal medicines, has been used as an antiphlogistic, antitusivie, and expectorant agent since ancient times. In the Japanese Pharmacopoeia XIV this is listed as the root of Platycodon grandiflorum A. De Candolle (Campanulaceae) and called KIKYOU (Platycodi Radix) in Japanese. HPLC analysis showed that commercial samples of P. Radix all contained platycodins, and a total of 12 peaks were identified by co-HPLC analysis with authentic samples isolated earlier from this laboratory. The peak purity and identity were checked with a photodiode array detector. The contents of the major saponins, platycodins A, C, and D, were determined and the peak-area ratios of platycodins A, C, and D, were shown to be correlated with their sources of origin. Fourteen commercial samples of Platycodon root, the origin of which was Platycodon grandiflorum, were collected from China (5 samples), Korea (5 samples), and Japan (4 samples). The commercial samples from China, Korea, and Japan each gave a distinct HPLC pattern with peak-area ratio of platycodins A, C, and D, of 1:2:3 and 2:8:1, respectively. HPLC analysis showed that those on the Japanese market were either imported from China or Korea based upon their HPLC patterns. 相似文献
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电喷雾串联质谱法鉴定桔梗皂苷D 总被引:7,自引:0,他引:7
改进了桔梗皂苷D的提取、分离及鉴定方法。首次利用大孔旨脱糖脱色及薄层硅胶作色谱系介质,并首次利用电喷雾质谱对目标化合物进行跟踪分析,使高纯度的目标化合物的分离和鉴定工作得以简化。 相似文献
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目的:优选滇桂艾纳香的提取工艺。方法:以原儿茶酸总量为考察指标,加水量、提取时间、提取次数为考察因素优选滇桂艾纳香提取工艺。结果:最佳提取条件为加水煎煮2次,第1次15倍水,煎煮1.5h,第2次10倍水,煎煮1h。结论:该提取工艺合理、稳定,原儿茶酸有效成分的提取率高。 相似文献
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