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- This paper describes a good method (TLC)by reference drugs (Creeping Euphorbia,Catechu) and chemical reference substances (catechin), The reproducibility and specialization of the TLCmethod is good. 本文中采用薄层色谱法,用对照药材地锦草,儿茶和对照品没食子酸,儿茶素,芍药苷作对照分别对其中的地锦草,儿茶,白芍进行鉴别。
- international chemical reference substances 国际化学对照品
- British Chemical Reference Substances 英国化学基准物
- chemical reference substance 化学参比物质
- chemical reference substances of Chinese herbal medicines 中药化学对照品
- WHO Collaborating Centre for Chemical Reference Substances 世界卫生组织化学参比物质协作中心
- Study on the chemical reference substances and quality standards of compound viola tianshanica granules 复方天山堇菜颗粒化学对照品的研究
- Objective To establish a preparative method for rupestonic acid reference substance from Artemisia rupestris by HPLC. 目的研究高效液相色谱制备一枝蒿酮酸对照品的方法。
- Object To establish an isolation method of theanine reference substance by preparative HPLC. 目的研究制备型高效液相色谱分离纯化茶氨酸对照品的方法。
- The product of suavissimoside R1 can be used as reference substance for analysis. 悬钩子皂苷R1产品可用做分析方法的对照品。
- Conclusion: It provides the basis for purification and standardized of curcumol reference substance . 结论: 为莪术醇对照品的标化和提纯提供了依据。
- Preparation, homogeneity, stability and certification of reference substance of bornyl acetate were studied. 摘要研究了乙酸龙脑酯标准样品的制备、均匀性和稳定性及其定值方法。
- British Pharmacopoeia method is more accurate because of its using the reference substance as a calibration. 英国药典方法更为可靠,关键是采用了标准品进行校正计算。
- chemical reference substances 化学参比物质
- Preparation,homogeneity,stability and certification of reference substance of bornyl acetate were studied. 研究了乙酸龙脑酯标准样品的制备、均匀性和稳定性及其定值方法。
- FDM provides chemical reference spectra databases of FTIR, Raman, NIR, Mass, and NMR spectra. 网站介绍了FDM相关光谱数据库的内容。包括有红外光谱、质谱、核磁共振等。
- Conclusions The preparation techniques are simple and high yield, can be used for preparing the reference substance of platycodin-D. 结论该工艺简单,收率高,可用于桔梗皂苷D标准品的制备。
- Chemical reference chromatogram is used for component assign, peak retention time adjustment and quantitive analysis purpose. 其中“化学对照品”图谱用于对色谱峰指认、保留时间校正以及定量计算。
- RESULTS:The test sample was similar to reference substance in that the TLC spots at the corresponding place were of the same color. 结果:制剂中被测成分色谱分别在与对照品色谱对应的位置上显相同颜色的斑点。
- Ammonia is a chemical substance. 氨是种化学物质。