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1.
目的:建立陕产延胡索产地加工与炮制一体化的HPLC指纹图谱。方法:应用RP-HPLC测定7批延胡索样品生物碱类化学成分指纹图谱。色谱条件:Hypurity C18色谱柱(250 mm×4. 6 mm,5μm),以乙腈-0. 1%磷酸溶液为流动相梯度洗脱,柱温30℃,流速1. 0 ml/min,检测波长280 nm。采用《中药色谱指纹图谱相似度评价系统》(2004A)和SPSS19. 0统计软件中的聚类分析对指纹图谱进行相似度分析。结果:优化了HPLC色谱条件,确定了17个共有峰,指认了原阿片碱、延胡索乙素2个化合物,建立了7个不同批次延胡索的HPLC指纹图谱,相似度较好,聚类分析结果与相似度评价结果基本一致。结论:该研究建立的延胡索HPLC指纹图谱可为其鉴别及质量评价提供更全面的参考。  相似文献   

2.
目的:采用HPLC法建立山慈菇的指纹图谱,可以对山慈菇正品与伪品的来源进行鉴别。方法:HPLC法,采用Zorbax SB-C18色谱柱(46mm×250mm,5μm),以乙腈-0.1%磷酸溶液(14∶86)为流动相,进行梯度洗脱,检测波长为224nm。结果:建立10批该样品及伪品白及、山兰、扁白及的指纹图谱,通过相似性分析,可以很好地对山慈菇正品与伪品的来源进行鉴别。结论:建立的指纹图谱方法简便可靠,可以直观地判断山慈菇药材和饮片的真伪,切实保障中药饮片质量。  相似文献   

3.
章蕾  黄子洳  林紫怡  钟晓明  程汝滨  黄真 《中草药》2024,55(6):2066-2076
目的 对败酱草Herba Patriniae及其市场常见混伪品的显微鉴别特征和HPLC指纹图谱进行研究,明确不同品种的败酱草及其混伪品间的差异,为败酱草的准确鉴定提供技术保障。方法 收集败酱草正品药材黄花败酱和白花败酱,市场常见败酱草混用品异叶败酱、菥蓂和苣荬菜,采用显微鉴别方法对5种药材粉末的显微特征进行研究;优化败酱草总皂苷的提取工艺,比较不同品种的总皂苷含量;建立败酱草及其混伪品的HPLC指纹图谱,基于指纹图谱相似度评价、聚类分析和主成分分析,对败酱草及其混伪品进行鉴别和药材质量的综合评价。结果 败酱草及其混伪品药材粉末的显微特征存在显著差异;优化了败酱草总皂苷的提取工艺,结果表明,败酱草及其混伪品总皂苷含量存在差异;建立了败酱草及其混伪品共26批的HPLC指纹图谱,共标定了11个共有峰,明确了败酱草及其混伪品指纹图谱的差异,通过相似度分析、聚类分析和主成分分析,可将败酱草及其混伪品进行准确区分;综合评价分析结果表明,败酱草及其混伪品的得分差异较大,其中正品白花败酱和黄花败酱的得分最高。结论 获得了败酱草及其市场常见混伪品在粉末的显微特征和HPLC指纹图谱的差异,为败酱草的准确鉴...  相似文献   

4.
王永生  王丽丽  姜志恒 《中药材》2008,31(4):507-510
目的建立评价哈蟆油药材质量优劣的指纹图谱分析方法.方法采用高效液相色谱法,Kromasil C18(250mm×4.6mm, 5μm)色谱柱,乙腈-0.5%磷酸水梯度洗脱、流速亦梯度变化,检测波长为209nm,柱温室温.数据分析采用"计算机辅助相似性评价系统"软件.结果测定了15批正品哈蟆油药材和3批伪品哈蟆油药材的HPLC图谱,从中选出质量较优的11批正品哈蟆油药材图谱生成对照指纹图谱,并计算得到各批药材的相似度,其中11批正品哈蟆油药材的相似度介于0.865~0.973之间,4批正品(劣质)哈蟆油药材介于0.559~0.801之间,3批伪品哈蟆油药材介于0.639~0.725之间.结论以相似度0.85作为哈蟆油药材合格与否的划分标准.本方法具有良好的专属性、精密度、重复性和稳定性,为名贵动物药哈蟆油的开发和利用奠定了基础.  相似文献   

5.
目的:从蛋白水平上对龟甲药材及其混伪品进行鉴别,分析龟甲及其混伪品的差异。方法:本研究采用聚丙烯酰氨凝胶电泳(SDS-PAGE)技术对龟甲及其混伪品进行鉴别,并对龟甲的背甲与腹甲、不同批次正品龟甲药材进行对比分析。结果:对于同一品种的龟甲,其背甲与腹甲的蛋白质亚基相似,电泳得到的蛋白质条带几乎无明显差别;不同批次正品龟甲在一维电泳中显现出的蛋白亚基条带差异性很小,其电泳蛋白条带受产地、批次等因素影响较小;正品龟甲在14~19 kDa,有3条高丰度蛋白聚合在一起,这"二细一粗三聚合"的条带群,可以作为鉴别正品龟甲和其他龟甲混伪品的初步依据。结论:结果显示,SDS-PAGE电泳技术可以对龟甲及其混伪品药材进行初步的鉴别,利用蛋白条带的区别可对其进行区分。  相似文献   

6.
目的:建立安胎丸的HPLC指纹图谱分析方法,首次采用两种相似度评价系统对其进行评价,为其质量控制提供参考。方法:采用Diamonsil Plus C18-A色谱柱(250 mm×4.6 mm,5μm);流动相为乙腈-0.1%磷酸溶液,梯度洗脱;流速为0.8 m L/min;检测波长为280 nm;柱温为35℃;进样量:10μL。采用国家药典委员会"中药色谱指纹图谱相似度评价系统(2004 A版)"和程度相似度软件对11批安胎丸样品进行相似度评价。结果:建立了11批安胎丸HPLC指纹图谱,共确定了31个共有峰,中药色谱指纹图谱相似度评价系统和程度相似度软件计算结果表明安胎丸指纹图谱相似度分别在0.97和0.87以上。结论:建立的安胎丸指纹图谱高效液相方法分离效果好、准确、高效、适用性广,可为安胎丸质量评价提供参考。  相似文献   

7.
地耳草的HPLC指纹谱鉴定研究   总被引:1,自引:0,他引:1  
目的:建立地耳草HPLC指纹图谱鉴定方法.方法:用RP-HPLC法,梯度洗脱,测定地耳草及其混伪品细叶金丝桃的指纹图谱,并作相似度比较分析.结果:地耳草不同样品指纹图谱相似度较好,而地耳草与细叶金丝桃的指纹图谱具有一定差异.结论:HPLC指纹图谱具有重现性好、特征性强、方法简便等特点,可用于地耳草药材的鉴别.  相似文献   

8.
目的:建立青海、西藏11个地区藏药材柳兰的HPLC指纹图谱评价体系。方法:采用ZORBAX SB-C18(250 mm×4.6 mm,5μm)色谱柱,以乙腈和水(均含0.1 mol/L乙酸铵+0.05%乙酸)为流动相梯度洗脱,流速1 mL/min,检测波长360 nm,柱温:35℃;利用中药色谱指纹图谱相似度评价系统(2004版A)软件计算相似度。结果:建立的11批柳兰HPLC指纹图谱标定了17个共有指纹峰,相似度在0.901~0.985之间。结论:建立的HPLC指纹图谱符合指纹图谱技术要求,为柳兰的鉴别和质量控制提供了参考。  相似文献   

9.
目的采用高效液相色谱-质谱联用技术(LC-MS)研究冬虫夏草蛋白指纹图谱,为冬虫夏草质量研究提供科学依据。方法色谱柱:Sepax bio-C4 (4. 6 mm×250 mm,3μm),流动相:0. 1%甲酸-水(A),0. 1%甲酸-乙腈(B),梯度洗脱,流速0. 6 m L/min,柱温30℃,检测器MSD。采用"中药色谱指纹图谱相似度评价系统"(2004 A版)对12批冬虫夏草指纹图谱进行分析,确定共有峰并进行相似度评价。结果建立了冬虫夏草蛋白LC-MS对照图谱,标示出了9个共有峰,12批冬虫夏草样品指纹图谱与对照图谱的相似度均0. 90,而6种其他虫草样品指纹图谱与对照图谱的相似度均0. 10,说明建立的指纹图谱方法专属性强。结论建立的分析方法专属性强,重复性及稳定性良好,可用于冬虫夏草的真伪鉴别。  相似文献   

10.
目的建立不同产地猫人参HPLC指纹图谱。方法采用Shim-pack CLC-ODS(4.6 mm×25 mm,5μm)色谱柱,DIKMA EasyGuard C_(18)(10 mm×4.6 mm)保护柱,乙腈-0.5%醋酸水溶液为流动相,梯度洗脱,检测波长280nm,流速1ml/min。采用中药色谱指纹图谱相似度评价系统(2004A版)计算相似度,建立不同产地猫人参指纹图谱。结果 13批猫人参的HPLC指纹图谱有24个共有峰,7个样品相似度在0.8以上,3个样品的相似度在0.7~0.8范围,3个样品的相似度小于0.7。结论首次建立中药猫人参HPLC指纹图谱分析方法。该分析方法简便、可靠,可快速有效的对猫人参药材进行鉴定和质量评价。  相似文献   

11.
汤卫国  王奇志  印敏  王鸣  陈雨  张建华  冯煦 《中草药》2014,45(15):2172-2177
目的建立微波消解-电感耦合等离子体质谱(ICP-MS)直接稀释测定脉络宁注射液中25种矿物质元素(Mg、Ca、Fe、Cu、Zn、Mn、Al、B、Ba、Co、Cr、K、Li、Mo、Na、Ni、P、Pb、Sr、Th、Ti、V、As、Cd和Hg)的方法。方法分别对微波消解条件和测试条件进行考察;样品经微波消解后,采用电感耦合质谱仪测定25种矿物质元素,并对测定方法学进行考察。结果确定最佳消解条件为3步缓慢升温:400 W 80℃升温10 min,保留5 min;600 W 120℃升温10 min,保留5 min;900 W 200℃升温20 min,保留20 min;25种矿物质元素在各自的线性范围内线性关系良好,r≥0.999 6,精密度、稳定性和重复性试验的RSD均符合定量分析要求;加标回收率为94.7%~106.1%,RSD在0.34%~2.79%。脉络宁注射液中检测出Mg、Ca、Fe、Cu、Zn、Mn、Al、B、Ba、Co、Cr、K、Li、Mo、Na、Ni、P、Pb、Sr、Th、Ti、V,未检出As、Cd和Hg。结论该方法简便、迅速、准确,适用于脉络宁注射液中25种矿物质元素的同时测定。  相似文献   

12.
The disturbance and instability of laterality are obstacles to diagnostics and therapy. Correction prior to starting therapy is required. They also predispose toward defined health problems and unspecific diseases. Numerous research activities provide evidence of the relevance of undisturbed laterality in diagnostics and therapy. Techniques of testing and therapeutic corrections will allow for optimized therapy success.  相似文献   

13.
14.
The Journal of Acupuncture and Tuina Science, a journal with an international scope (IS SN 1672-3597, CN 31-1908/R, Bimonthly), is embodied by 'Springer Verlag' Database, Index Copernicus (IC) and Chinese Scientific and Technical Paper and Citations Data (CSTPCD). You can search full text on http://www, springerlink, com/content/1672 -3597.  相似文献   

15.
正Beverages based on Ilex paraguariensis A.St.-Hil.are used in the south Brazil and other Latin American countries located at the so-called southern cone.It is known as chimarro or mate in south and southeast Brazil,tererêin  相似文献   

16.
This paper deals with an interdisciplinary study covering historic, botanical, phytochemical, pharmacological and clinical aspects of rhubarb and related species, to lay stress on the correlation between plant phylogeny, chemical constituents and purgative activity.

It was found that the official rhubarbs were exclusively restricted in the Sect. Palmata e.g. Rheum palmatum R. palmatum var. tanguticum R. officinale; the following criteria may serve as their standard, viz., the presence of sennoside derivatives and rhein, the occurrence of the reduced form of rhein and aloe-emodin, the leaves with any kind of palmate incision. Comprehensive multivariate analyses showed that there is a very close relationship between the leaf incision, existence of sennosides or rhein and purgative activity.  相似文献   


17.

Background

At present, the state-of-the-art medication in treating idiopathic taste disorder (gustatory dysfunction) is zinc. If zinc medication was unsuccessful, not tolerated or if it is contraindicated the persons affected can hardly be helped.

Objectives

In a randomized placebo-controlled clinical trial an attempt was made to determine the efficacy of acupuncture.

Methods

The treatment group was treated with acupuncture needles, the placebo group with an inactive acupuncture-laser. Endpoints of the study were changes in the taste test, the quality of life and the severity of symptoms of depression (BDI) as well as mood changes (ZMS). Satisfaction with the success of the respective therapy was also evaluated. Data were collected before and after therapy and again for the treatment group 10 weeks after completion of the treatment period.

Findings

Treatment with real acupuncture showed a significant improvement in gustatory function as well as a significant improvement in psychological symptoms. Greater satisfaction with the treatment results was evident in the treatment group. The treatment results of acupuncture remained stable over a period of ten weeks after completion of the treatment.

Conclusion

Acupuncture was effective in the therapy of idiopathic taste disorders and therefore it is an effective alternative when zinc medication is not tolerated or unsuccessful. But it is also suitable as a therapy of first choice. Acupuncture can be considered as an extension of the therapeutic spectrum in the difficult treatment of taste disorders.  相似文献   

18.

Background

Experimental and clinical studies postulate a neurobiological mechanism of acupuncture by modulating central pain systems, neurohormones and -transmitters. It seems to be quite likely that the autonomic nervous system (ANS) plays an important mediating role in this neuromodulation.

Aim

In measuring heart rate variability (HRV), as a non-invasive approach to the ANS-function, the object of this study was to monitor probable acupuncture-induced changes of autonomic balance. The innovative technology of laser-needle acupuncture offers for the first time a stimulation method which fulfils the demands on a placebo-controlled acupuncture trial not requiring controversial sham acupuncture.

Method

19 healthy voluntary subjects underwent 3 treatments in randomized sequence, consisting of placebo-, 1-point- (PC 6) and simultaneous 3-point- (PC 6, LR 3, SI 3) laser-needle-stimulation over 20 minutes. Before, during and after placebo-/verum laser-needle acupuncture, HRV-data for normalized HF(high frequency)- and LF(low frequency)-Power (nHF, nLF) and their quotient nLF/nHF obtained by power spectrum analysis (FFT), were measured and analyzed statistically at 5 different time points (ANOVA repeated measures, p < 0,05).

Results

During both verum applications, the 1-point- (PC 6) as well as the simultaneous 3-point- (PC 6, LR 3, SI 3) laser-needle stimulation, significant changes of the ANS-activity were found in comparison to the placebo application. The most significant modification of HRV was an increase of nHF (p < 0,05 (PC 6), p < 0,0001 (PC 6, LR 3, SI 3)) as an expression of growing vagal activity during acupuncture.

Conclusion

Laser-needle acupuncture causes in 1-point-stimulation (PC 6) as well as in simultaneous 3-point-stimulation (PC 6, LR 3, SI 3) significant changes in HRV in comparison to placebo application. HRV-monitoring seems to be a suitable approach in exploration of acupuncture-induced changes of ANS and could possibly be established in combination with laser needle acupuncture as a standard for further scientific and clinical acupuncture investigations which are greatly needed.  相似文献   

19.
瑞香科植物广泛分布于世界热带和温带地区,其中多种植物可供药用。在对该科植物的研究中发现,黄酮类、木脂素和香豆素等酚性化合物的低聚体为其重要的特征性成分,药理活性主要表现在抗肿瘤、抗炎、抗氧化、抗菌和抗病毒等方面。对已发现的酚性聚合体的化学结构、植物来源及药理活性进行综述,为瑞香科植物今后的研究和开发利用提供参考。  相似文献   

20.
目的采用HPLC梯度洗脱法同时测定沉香化滞丸中沉香四醇、柚皮苷、橙皮苷、新橙皮苷、和厚朴酚、大黄素、厚朴酚、木香烃内酯、去氢木香内酯、大黄酚、大黄素甲醚11种成分。方法采用Thermo Syncronis C18色谱柱(250 mm×4.6 mm,5μm),流动相为水-乙腈,梯度洗脱:0~10 min,20%乙腈;10~20 min,20%~40%乙腈;20~24 min,40%乙腈;24~26 min,40%~52%乙腈;26~30 min,52%乙腈;30~31 min,52%~90%乙腈;31~35 min,90%乙腈;35~40 min,90%~100%乙腈;40~43min,100%乙腈;43~45min,100%~20%乙腈;检测波长215nm,体积流量1.0m L/min,柱温30℃,进样量20μL。结果各成分在43 min内分离良好,沉香四醇、柚皮苷、橙皮苷、新橙皮苷、和厚朴酚、大黄素、厚朴酚、木香烃内酯、去氢木香内酯、大黄酚、大黄素甲醚的线性范围分别为1.4~13.6、10.0~200.0、31.5~315.0、1.0~120.1、1.8~50.6、0.93~10.1、1.8~30.0、0.2~40.3、1.8~18.1、1.7~25.0、0.45~10.70μg/mL;样品中各成分的平均回收率均在98.90%~100.87%;11种成分精密度RSD在0.55%~1.54%;供试品溶液在30 h内稳定性良好,RSD在0.75%~1.94%;重复性RSD在0.39%~1.73%。6批次样品中沉香四醇、柚皮苷、橙皮苷、新橙皮苷、和厚朴酚、大黄素、厚朴酚、木香烃内酯、去氢木香内酯、大黄酚、大黄素甲醚质量分数分别为92.0~201.0、511.5~9 033.0、5 475.0~12 635.5、54.5~5 095.5、192.0~2 137.5、117.0~391.5、106.5~1 281.5、13.0~136.5、93.5~199.0、177.0~1 207.0、33.5~251.5μg/g。结论本方法准确、快速、简便,重复性好,精密度高,适用于沉香化滞丸中多种活性成分的定量分析。  相似文献   

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