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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 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
- chemical reference substances 化学参比物质
- chemical reference substance 化学参比物质
- The resu lts were compared w ith the chem ical reference substances and b lank samp les. 结果表明:在薄层色谱上均能检识出丹参、川芎的色谱斑点。
- Objective:To prepare purified products (reference substances) of tannin from Galla Chinensis and formulate their quality standards. 目的:制备五倍子鞣酸精制品(对照品)及制定质量标准。
- 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。
- 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。
- Amicrobial transformation of benproperine combined with semi-preparative HPLC was used toget two reference substances of the hydroxylated metabolites, and their structures werethen elucidated by NMR. 利用微生物转化法和半制备HPLC获得其中两种代谢产物的对照品,并经NMR鉴定结构。
- Agricultural chemicals refer to the medicament used to control pest for agriculture and forestry, weeding and regulating the growth of plants. 农药是指用于农林业防治病虫害、除草及调节植物生长的药剂。
- 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。
- national standards and reference substances 国家标准品与对照品
- 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。