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1.
口炎清颗粒中绿原酸HPLC测定及其稳定性考察   总被引:4,自引:0,他引:4  
目的 建立口炎清颗粒中绿原酸的含量测定方法及考察其稳定性。方法 以依利特 C1 8柱为分析柱 ,乙腈 - 0 .4 %磷酸 (90∶ 10 )为流动相 ,流速 1.0 m L / m in,32 7nm为检测波长 ,对口炎清颗粒中的绿原酸含量进行了 HPL C测定 ,并对储藏过程中绿原酸的稳定性进行了考察。结果 该含量测定方法操作简单、重复性好 ,回收率达 99%以上 ,口炎清颗粒中绿原酸在 18个月内保持相对稳定。结论 本文 HPL C方法稳定可靠 ,适宜于口炎清颗粒的质量控制  相似文献   

2.
高效液相色谱法测定小儿咳喘灵颗粒中绿原酸的含量   总被引:1,自引:0,他引:1  
目的:应用高效液相色谱法测定小儿咳喘灵颗粒中绿原酸的含量。方法:采用Shim-pack-C18柱(5μm,4.6mm×150mm),乙腈~0.4%磷酸水溶液(11∶89)为流动相,检测波长327nm。结果:线性范围为0.2176~1.088μg,r=0.999 4,回收率为98.23%,RSD为0.97%。结论:该方法用于测定小儿咳喘灵颗粒中绿原酸的含量具有操作简便、结果准确、灵敏的特点,可用于该制剂的质量控制。  相似文献   

3.
HPLC测定清胰利胆颗粒中绿原酸   总被引:5,自引:4,他引:1       下载免费PDF全文
目的:建立清胰利胆颗粒中绿原酸的含量测定方法。方法:采用高效液相色谱法,色谱柱welchrom-C18柱(4.6mm×250 mm,5μm);乙腈-0.1%磷酸(9∶91)为流动相,检测波长327 nm,流速1.0 mL.min-1,柱温35℃。结果:绿原酸含量在0.303 5~1.517 5μg线性关系良好(r=0.999 7),平均回收率为97.3%(RSD 1.9%)。结论:本法操作简便、可靠,可用于清胰利胆颗粒的质量控制。  相似文献   

4.
连花清瘟胶囊中绿原酸的含量测定   总被引:4,自引:1,他引:3  
目的:建立连花清瘟胶囊中绿原酸的含量测定方法.方法:色谱柱:kromagil Cls柱;流动相:乙腈-0.4%磷酸溶液(12:88);检测波长:327 nm;流速:1.0mL·min-1.结果:绿原酸线性范围为6.43-77.16Ixg·mL-1,r=0.9997,回收率为99.60%,RSD%为1.28%.结论:本方法简便、可靠、重现性较好,能起到控制连花清瘟胶囊中绿原酸含量的作用.  相似文献   

5.
目的 建立小儿银牛颗粒中绿原酸的HPLC含量测定方法.方法 采用HPLC法,色谱柱为Phenomenex ODS C_(18)色谱柱(4.6 mm×250 mm,5 μm),柱温20 ℃,流动相为甲醇-0.4%磷酸水溶液(20:80),流速1 mL ·min~(-1),检测波长为327 nm.结果 绿原酸在0.284~1.704 μg范围内呈良好的线性关系(r=0.999 6),平均回收率和RSD分别为96.19%和1.16%(n=5).结论 该方法操作简便、准确、重现性好,绿原酸得到较好分离,可用于小儿银牛颗粒的质量控制.  相似文献   

6.
目的: 建立以绿原酸为指标的肺热清解口服液质量控制方法。 方法: 采用TLC对肺热清解口服液中桑白皮与芦根进行定性鉴别,采用HPLC测定肺热清解口服液中绿原酸的含量,Haito Pack ODS色谱柱(4.6 mm×250 mm,5 μm),流动相甲醇-1% 冰醋酸溶液(20:80),检测波长326 nm,柱温30 ℃,流速1.0 mL·min-1,进样量10 μL。 结果: 桑白皮和芦根在与对照药材色谱相应位置上显相同斑点,且阴性对照无干扰。绿原酸在3.180~106.0 mg·L-1与峰面积呈良好线性关系,平均回收率100.5% (RSD 2.05%),4批样品中绿原酸平均质量浓度分别为28.9,42.5,28.6,21.7 mg·L-1结论: 建立的含量测定方法简便、快捷、准确,可作为肺热清解口服液的质量控制方法之一。  相似文献   

7.
HPLC法测定银仁颗粒中绿原酸的含量   总被引:2,自引:0,他引:2  
目的建立银仁颗粒中绿原酸的含量测定方法.方法采用HPLC法测定绿原酸的含量,色谱柱:ShimPack CLC-ODS柱(150×6.0 mm,5 μm);流动相:3%甲酸-甲醇(79:21);流速:1.2 mL/min;检测波长:327 nm;进样量:10μL;柱温:室温.结果绿原酸在0.102~1.02μg范围内呈良好的线性关系,r=0.9996;平均回收率为98.17%,RSD=1.31%.结论该方法简便、准确,可用于银仁颗粒的质量控制.  相似文献   

8.
何艳  胡小祥  李叶婧  唐佳齐  张辉 《中成药》2023,(5):1433-1437
目的 建立HPLC法同时测定小儿青翘颗粒中新绿原酸、绿原酸、隐绿原酸、异绿原酸B、异绿原酸A、异绿原酸C、连翘酯苷A、葛根素、甘草酸的含量。方法 该药物70%甲醇提取液的分析采用Agilent Zorbax SB-C18色谱柱(250 mm×4.6 mm, 5μm);流动相0.15%磷酸-乙腈,梯度洗脱;体积流量1.0 mL/min;柱温30℃;检测波长250、327 nm。结果 9种成分在各自范围内线性关系良好(r≥0.999 3),平均加样回收率98.77%~103.59%,RSD 1.47%~2.25%。结论 该方法简便准确,可用于小儿青翘颗粒的质量控制。  相似文献   

9.
目的:应用高效液相色谱法(HLPC)对测定不同产家小儿清热宁颗粒中绿原酸含量进行测定。方法:采用高效液相色谱法(HLPC)法,并进行方法学考察后,测定不同生产企业小儿清热宁颗粒中绿原酸的含量。结果:研究结果表明,不同厂家小儿清热宁中绿原酸的含量不同,但含量差别不大。结论:应用HLPC测定不同生产企业小儿清热宁颗粒中绿原酸的含量,其方法准确可靠,重现性、专属性均较好,可用于小儿清热宁颗粒的质量控制。  相似文献   

10.
高效液相色谱法测定不同厂家银黄颗粒中绿原酸的含量   总被引:6,自引:0,他引:6  
目的建立反相高效液相色谱(RP-HPLC)法测定银黄颗粒制剂中绿原酸含量的方法及测定不同厂家银黄颗粒制剂中绿原酸的含量。方法采用RP-HPLC法检测银黄颗粒制剂中绿原酸的含量,色谱条件:Kromasil C18色谱柱,以乙腈-甲醇-0.4%磷酸水溶液(含0.6%三乙胺,5∶15∶80)为流动相,流速1 ml/min,检测波长327 nm,柱温为室温。结果绿原酸在6.23×10-3~100.50×10-3mg.ml-1范围内与峰面积呈良好的线性关系(r=0.9998),平均回收率为98.30%,RSD=2.35%(n=6)。结论所建立的色谱方法可以简便、准确测定银黄颗粒中绿原酸的含量,重现性较好。各厂家生产的银黄颗粒中绿原酸含量差别较大,有必要建立绿原酸的定量控制方法。  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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