HPLC Fingerprint Chromatogram of Tetracera asiatica Produced in Guangxi

来源 :Medicinal Plant | 被引量 : 0次 | 上传用户:mingge911
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
[Objectives] To establish fingerprint chromatogram of Tetracera asiatica and provide basis for controlling and assessing the quality of Tetracera asiatica.[Methods] The high-performance liquid chromatography( HPLC) method was used. Phenomenex C18( 5 μm,4. 6 ×250 mm),acetonitrile-0. 1% phosphoric acid water,gradient elution,flow rate 1 m L/min,detection wavelength 214 nm,and column temperature 25 ℃. The fingerprint chromatogram of 10 batches of samples of Tetracera asiatica was determined for similarity comparison. [Results] It established HPLC fingerprint chromatogram of Tetracera asiatica produced in Guangxi,determined a total of 13 common fingerprint peaks. The similarity of 10 batches of Tetracera asiatica was > 0. 9.[Conclusions] The method is rapid and accurate and can provide references for assessing the quality of Tetracera asiatica. [Methods] The high-performance liquid chromatography (HPLC) method was used. Phenomenex C18 (5 μm, 4.6 × 250 mm), acetonitrile-0.1% phosphoric acid water, gradient elution, flow rate 1 m L / min, detection wavelength 214 nm, and column temperature 25 ° C. The fingerprint chromatogram of 10 batches of samples of Tetracea asiatica was determined for similarity comparison. [Results] It established HPLC fingerprint chromatogram of Tetracera asiatica produced in Guangxi, determined a total of 13 common fingerprint peaks. The similarity of 10 batches of Tetracera asiatica was> 0. 9. [Conclusions] The method is rapid and accurate and can provide references for assessing the quality of Tetracera asiatica.
其他文献
氟钽酸钾中钽、铌的测定,一般采用丹宁水解沉淀来分离杂质,然后再以色层分离,并以重量法测钽,比色法测铌。此法手续繁琐。考虑到氟钽酸钾直接色层分离的主要干扰是钾离子,使
为了减少环境污染,近年来国内外都从事低铬酸液镀铬工艺的研究,铬酸-硫酸-氟硼酸体系就是一种有希望的新工艺。其中氟硼酸根离子一般用硝酸银溶液将铬酸沉淀过滤除去,然后用
根据文献报导,前人提出的计算公式,已被用于氧化钇中微量稀土杂质的测定。在作分析时,可免除乳剂特性曲线的制作,对简化分析步骤有一定意义。计算公式如下:R=(D_(内标))/(D_
HEDP电镀液的分析,我们一直采用南京大学化学系络合物研究室电镀组研制的分析方法进行化学分析,我们感到:分析HEDP时终点比较明显,但分析镀液中的金属离子时,终点就不够敏锐
无氰电镀铜锡合金电镀液中硝酸盐与亚硝酸盐共存,用高锰酸钾容量法测定亚硝酸盐,因电镀液中酒石酸盐的影响使结果不理想。文献提出用氯胺T测定亚硝酸盐。氯胺T是对甲苯磺酰
氧化锆的纯度分析,部标准采用苯羟乙酸重量法。该方法准确度较高,但较费时且成本较高。通常的络合滴定法,滴定近终点时需经反复煮沸操作也较繁琐。如果用K_2S_2O_7熔样,则需
测定烟气吸收液中的氯,单纯只测氯离子是不完善的,尤其是冶炼中有氯气存在的反应过程。因为氯气被水吸收,将产生次氯酸根离子,如只测定氯离子,则不利于检查氯量的平衡。要测
保健是预防医学中的主要组成部分,其目标已从仅仅降低疾病发生率提高到延长寿命、提高生命质量的水平.人类保健从何时开始尚有争议,关键是对人的生命从何时算起的看法不同,实质就是如何看待人类的胚胎及胎儿.近年来更多的围产医学家认为胎儿作为人生命的开始,有享受保健的权利。
由于尼尔基水利工程上马,工程淹没区考古发掘工作于2001年8月正式进行,一期工程发掘遗址共三处,为金界壕、尼尔基老山头将军墓及前宜卧奇将军墓,现将前宜卧奇清代将军墓发掘