首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 46 毫秒
1.
目的 建立雪峰虫草药材的高效液相色谱指纹图谱,为评价其质量提供依据.方法 采用高效液相色谱法,色谱柱为月旭 AQ-C18(4.6 mm×250 mm,5 μm);检测波长 260 nm;以甲醇-0.1%甲酸水溶液为流动相进行梯度洗脱;体积流量0.5 mL/min;柱温30 ℃;进样量20 μL. 结果 建立了11批雪峰虫草药材高效液相色谱指纹图谱,确定共有峰15个,采用对照品结合HPLC-Q-TOF-MS/MS技术对7个特征峰进行了指认,并采用相似度分析、主成分分析、聚类分析的方法对指纹图谱进行了分析. 结论 建立的雪峰虫草高效液相指纹图谱方法简便、可靠且重复性好,为雪峰虫草的质量控制提供了有效的手段.  相似文献   

2.
目的:采用高效液相色谱法(HPLC)建立火绒草的指纹图谱,为火绒草的质量控制提供标准.方法:选用Ultimate XB-C18(5μm,4.6mm×200mm)色谱柱;流动相:A.甲醇-乙腈-四氢呋喃(3:2:1),B.0.5%冰醋酸溶液;柱温:20℃;流速:1mL/min;记录时间60min;二级管阵列检测器,检测波长为325nm;采用药典委员会的色谱指纹图谱相似度计算软件(2004A版)进行分析.结果:确定了火绒草有15个共有峰,图谱中主要色谱峰分离较好,达到指纹图谱要求,可有效地分析和评价药材的质量.结论:所建立的指纹图谱特征性及专属性强,方法稳定可靠、简便快捷,适用于火绒草药材的质量控制.  相似文献   

3.
【目的】建立玉叶金花药材高效液相色谱(HPLC)指纹图谱的分析方法。【方法】采用HPLC法,色谱柱为Diamonsil C18(2)(150 mm×4.6 mm,5μm),流动相条件为甲醇—体积分数0.5%冰醋酸溶液,梯度洗脱,流速:1.0 mL/min;检测波长265 nm;柱温25℃;记录时间65 min;使用中药色谱指纹图谱相似度评价系统(2004年A版)进行数据处理,对不同产地的玉叶金花药材指纹图谱的相似度进行比较分析。【结果】通过分析10批药材的HPLC图谱,确定了11个峰为指纹图谱的共有峰,构成了玉叶金花药材的色谱指纹图谱特征。【结论】所建立的方法精密度、稳定性和重复性良好,为该药材的鉴别及质量评价提供了新的依据。  相似文献   

4.
目的 建立玉屏风药材汤剂的指纹图谱.方法 采用高效液相色谱法(HPLC)分析,色谱柱为Hypersil ODS柱(250 mm×4.6 mm,5 μm),流动相为乙腈-水梯度洗脱,检测波长为220 nm,流速为1.0 ml/min,进样量为10 μl,柱温为30℃.采用中药色谱指纹图谱相似度评价系统软件(2004 A版)进行指纹图谱分析.结果 玉屏风药材汤剂主要有8个特征峰.结论 该指纹图谱可以作为玉屏风药材汤剂中升麻苷、5-O-甲基维斯阿米醇苷、芒柄花素稳定性的参考.  相似文献   

5.
目的 采用高效液相色谱法建立川芎药材的指纹图谱分析方法 .方法 采用phenomenex Luna C18(4.6mm×250mm,5μm)色谱柱,0.1%磷酸和甲醇为流动相,梯度洗脱,检测波长276 nm,以阿魏酸为参照物.结果 建立了川芎药材的HPLC指纹图谱,标定了12个共有指纹特征峰,方法 学考察符合指纹图谱技术要求.结论 该方法 准确、可靠,为有效的控制川芎药材的质量提供了依据.  相似文献   

6.
目的建立沙枣果实的高效液相色谱(HPLC)指纹图谱,为沙枣药材的质量控制提供依据。方法采用高效液相色谱法测定11批次不同产地沙枣的色谱图,确立指纹图谱。色谱条件:选用Hypersil ODS-2色谱柱(4.6 mm×250 mm,5μm);流动相为0.04%磷酸水溶液和0.04%硫酸水溶液1∶1(A)与乙腈和甲醇1∶1(V/V)的混合溶剂,梯度洗脱,流速0.75 ml.min-1,柱温35℃,检测波长220 nm。结果以槲皮素为参照峰,标示出沙枣的20个共有峰,建立了沙枣果实的HPLC指纹图谱。结论该图谱从整体上显示沙枣的征性,为沙枣药材的质量控制提供参考。  相似文献   

7.
目的建立不同产地大血藤药材的高效液相色谱指纹图谱,同时测定红景天苷和绿原酸2种成分的含量。方法采用高效液相色谱法,色谱柱为Phenomenex-C18(250mm×4.6mm,5μm);以乙腈-0.05%磷酸水溶液为流动相进行梯度洗脱;检测波长:280nm;流速:1.0mL/min;进样量:15μL;柱温:30℃。结果 10个产地的大血藤药材指纹图谱相似度达0.9以上,共标定14个共有峰,可确认红景天苷和绿原酸两个峰。红景天苷和绿原酸含量在不同产地大血藤中差异很大,以安徽产大血藤药材中含量为最高。结论所建立的高效液相色谱指纹图谱测定方法准确可靠,重现性好,可作为大血藤药材的鉴别和内在质量评价的依据。  相似文献   

8.
三七药材指纹图谱的研究   总被引:1,自引:0,他引:1  
目的研究三七药材指纹图谱。方法采用反相高效液相方法(HPLC):C18(250.0mm×4.0mm,5μm)色谱柱,以乙腈-水为流动相,梯度洗脱,检测波长203nm。结果建立了三七药材的HPLC指纹图谱。结论该方法简单,重现性好,具可操作性,能用于三七药材的鉴别与评价。  相似文献   

9.
陕西产延胡索药材HPLC指纹图谱研究*   总被引:2,自引:0,他引:2       下载免费PDF全文
[目的]建立陕西产延胡索药材的高效液相色谱(HPLC)指纹图谱,为延胡索药材制定质量标准提供参考.[方法]采用反相高效液相色谱法,KromasilC18色谱柱,柱温30℃,流动相:乙腈-醋酸盐缓冲液(pH6.0)梯度洗脱,流速1.0 mL/min,检测波长280nm,洗脱时间75 min.[结果]建立了以延胡索乙素为内参照峰的延胡索药材HPLC指纹图谱,共含有17个共有色谱峰.[结论]建立的指纹图谱可以作为延胡索质量评价和品种鉴别的主要依据之一.  相似文献   

10.
决明子药材HPLC指纹图谱研究   总被引:4,自引:0,他引:4  
目的 建立决明子药材反相高效液相色谱(RP-HPLC)指纹图谱分析方法,为有效控制决明子药材的质量奠定基础.方法 采用RP-HPLC法,色谱柱为SunfireTM C18柱 (4.6 mm×150 mm,5 μm),乙腈-0.1%磷酸水梯度洗脱,检测波长为280 nm,流速为0.8 mL /min,分析时间为120 min,分析了10批决明子药材的HPLC指纹图谱.结果 在选定的色谱条件下,通过相似度分析确定27个色谱峰构成决明子药材指纹图谱的特征峰.结论 采用RP-HPLC方法 建立的指纹图谱具有稳定、重复性好的特点,不但可用于决明子药材质量控制,还可作为决明子有效物质基础研究的有效手段.  相似文献   

11.
CASE HISTORY A female patient, 46 years old, head of the foreign affairs department of a certain university in Beijing, paid her first visit on October 9, 2006, with the chief complaint of vomiting for one month. She got vomiting after meals in early September. Before that, she had discomfortable sensation in the stomach due to angry with others, but she didn't pay much attention. Later, it developed into vomiting after eating. After the vomiting, the discomfort would be relieved, but with slight hypodynamia. She was once diagnosed as having 'neurogenic vomiting'. Having taken some western and Chinese drugs, the above symptoms were a little bit improved, but she would have nausea upon eating and with regurgitation. Because of the fear for vomiting, she did not dare to have food intake, with body weight reduction of 6 kilos in one month.  相似文献   

12.
Radiotherapy and chemotherapy are the important modern medical therapies for malignant tumors,yet they can also bring about serious local and systemic toxic side reactions so to decrease the patient;'s life quality,manifested by a series of consumptive symptoms.Having engaged in the combined work of Chinese and western medicine for nearly 50 years,the research fellow Qiu Baoguo in Henan Provincial Academy of TCM has developed his unique views on the TCM study of consumptive syndromes.The author of this essay had once the fortune tO follow Dr.Qiu in clinic,and specially would like to introduce in the following Dr.Qiu's experience in treating consumptive syndromes after radio-chemotherapies for patients with malignant tumor.  相似文献   

13.
OBJECTIVE: To observe therapeutic effects of the comprehensive therapy of acupuncture-moxibustion and Chinese Tuina for treatment of insomnia due to deficiency of both the heart and spleen. METHODS: 92 cases were divided randomly into the treatment group (treated by acupuncture-moxibustion and Chinese Tuina) and the control group (treated by acupuncture-moxibustion). RESULTS: The therapeutic effect of the treatment group was obviously superior to that of the control group (the CHI2 test showed P < 0.01). CONCLUSIONS: The comprehensive therapy of acupuncture-moxibustion and Chinese Tuina can give marked therapeutic effects for treatment of insomnia due to deficiency of both the heart and spleen.  相似文献   

14.
15.
Objective: To investigate if there are the CK-19, PDX-1, Nestin, Ngn3 positive cells in the donor islets of different purity in rats. Methods: Thirty male adult SD rats were randomly divided into 3 groups. Islets were isolated using digestion by ductal injection of collagenase. Group Ⅰ (n=10): Separating cell preparations were not purified, Group Ⅱ(n=10): Islet sediment was purified with 25% Ficoll400 ,Group Ⅲ (n=10): Islet sediment was purified with 25% and 11% Ficoll-400. The levels of protein of CK-19, PDX-1, Nestin and Ngn3 were detected by immunohistochemistry and the mRNA of CK-19, PDX-1, Nestin, Ngn3 was amplified by RT-PCR. Results: After two different purification methods applied, three islet preparations of different purities were obtained. The difference of islet purity was significant among various groups (P<0.05). Compared with group Ⅱ and group Ⅲ,the protein and mRNA of CK-19, PDX-1, Nestin,Ngn3 were both higher in group Ⅰ; group Ⅲ was poorly expressed. Conclusions: The three different islet purity donor islet have different CK-19, PDX-1, Nestin, Ngn3 positive cells within them, indicating that there are some islet stem cells in the purified donor islet.  相似文献   

16.
Objective:To investigate the optimum screening conditions of associated proteins in human psoriasis vulgaris by serum proteomics technique, and to screen the different expression proteins related with psoriasis vulgaris. Methods:Serum samples of peripheral blood were collected from newly diagnosed psoriasis vulgaris patients in the clinic, and 20 matched healthy persons. Serum albumin IgG was removed by filtering with ProteoExtract Albumin/IgG. After comparative proteomics analysis the different protein spots were identified using 2-DE and MS. Results :Electrophoresis figures with high resolution and reproducibility were obtained. Three different expression proteins were found only in the serum from psoriasis vulgaris patients, while nine other different proteins expressing from healthy volunteers. Conclusion:The protein expression was different in the serum between the psoriasis vulgaris patients and healthy volunteers. It was hoped that we could find the biomarkers related to psoriasis vulgaris by using proteomics.  相似文献   

17.
PYTOBEZOARS are common bezoars in gastrontestinal tract, commonly seen in stomach and mall intestine,1but huge disopyrobezoars are  相似文献   

18.
CASE HISTORY A male,a retired officer of 61 years old,paid his first visit on May 12,2006.The patient stated that 2 weeks before he suddenly got paroxysmal precordial choking pain,with irregular attacks.Each attack would last several seconds to several minutes.The attack was accompanied with heavy oppressed sensation in the precordial region,palpitation,lassitude,and in severe cases,sweating,which was once diagnosed by a hospital as'coronary heart disease'.Recalling the case history,the patient said that several days before he got angry with others because of some affairs in work,and he was not so used to the life pattern since he had just retired from his busy working post.At usual times,he was quick tempered and peevish.In recent days,he had poor appetite,and loose stool.  相似文献   

19.
20.
The English edition of Chinese Journal of Integrative Medicine is edited and published by the Chinese Journal of Integrated Traditional and Western Medicine Press.Original scientific papers of advanced clinical and experimental medicine in the field of complementary/alternative medicine or integrative medicine are expected.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号