HPLC法测定复方龙胆片中龙胆苦苷的含量

目的:建立复方龙胆片中龙胆苦苷含量的测定方法.方法:采用高效液相色谱法,色谱柱:Waters Symmetry C18柱(250 mm×Φ4.6 mm,5 μm);流动相:甲醇-水(23:77);柱温:40 ℃;检测波长:270 nm;流速:0.8 mL/min.结果:龙胆苦苷在0.010 76～0.107 6 μg/μL之间,质量浓度与峰面积值呈良好的线性关系,r＝0.999 8,平均回收率为100.6%,RSD值为1.54%(n=6).结论:此方法操作简单、快捷、稳定性及重现性好,可用于复方龙胆片中龙胆苦苷的含量测定.     

高效液相色谱法测定龙胆花中4种活性成分的含量

目的 建立反相高效液相色谱法同时测定龙胆花中落干酸、獐牙菜苦苷、龙胆苦苷、獐牙菜苷的含量.方法 采用ZORBAX SB-CM18(250 mm×4.6 mm,5 μm)色谱柱;流动相甲醇和水(含0.04%磷酸)为15:85的比例洗脱;检测波长为238 nm;流速1 ml·min-1;柱温30℃.结果 4种成分均达到基线分离,落干酸、獐牙菜苦苷、龙胆苦苷、獐牙菜苷的线性范围分别为0.10～6.25 μg (r 0.999 9),0.076～3.5 μg (r =0.999 8),0.04～5.65 μg(r = 0.999 9)和1.27～7.62 μg (r =0.999 8);平均回收率分别为99.2%(RSD=2.6%,n=5),103.0%(RSD=1.5%,n=5),101.0%(RSD=1.1%,n=5),99.7% (RSD=3.6%,n=5).结论 该方法测定快速,结果准确、可靠.     

HPLC法同时测定三味龙胆花片中龙胆苦苷及獐牙菜苦苷

目的建立HPLC法同时测定三味龙胆花片(白花龙胆、甘草、蜂蜜)中龙胆苦苷及獐牙菜苦苷的含有量。方法药物甲醇提取液的分析采用Diamonsil C18色谱柱(250 mm×4.6 mm,5μm);柱温30℃;流动相为甲醇-水(25∶75);体积流量1.0 m L/min;进样量10μL;检测波长240 nm。结果龙胆苦苷和獐牙菜苦苷分别在20.1~201.0 ng(r=0.999 9)和19.76~197.6 ng(r=0.999 9)范围内有良好的线性关系,平均加样回收率分别为99.93%和100.8%,RSD值分别为1.65%和2.06%。结论该方法简便、准确、可靠,可用于三味龙胆花片的质量控制。     

HPLC同时测定龙胆泻肝丸中龙胆苦苷和栀子苷的含量

目的:建立一种同时测定龙胆泻肝丸(龙胆、栀子、黄芩等)中龙胆苦苷和栀子苷含量的HPLC方法。方法:色谱条件为:C18柱(5μm,4.6mm×250mm);流动相为甲醇-水(23∶77);柱温为40℃;检测波长:238nm。结果:龙胆苦苷在3.03～30.30μg/mL时,质量浓度与峰面积积分值呈良好的线性关系,r=1.0000,平均回收率为98.43,RSD为1.08;栀子苷在9.76～97.60μg/mL时,质量浓度与峰面积积分值呈良好的线性关系,r=0.9999,平均回收率为99.95,RSD为0.91。结论:该方法简便、快速、准确,一种方法同时测定两种成分,可用于龙胆泻肝制剂的质量控制。     

HPLC法测定强肝胶囊中龙胆苦苷、芍药苷、丹酚酸B

目的建立同时测定强肝胶囊中龙胆苦苷、芍药苷、丹酚酸B 3种成分的高效液相色谱分析方法。方法采用Diamonsil C18色谱柱(250 mm×4.6 mm,5μm);流动相为乙腈-0.05%磷酸水溶液,梯度洗脱;体积流量1 mL/min;柱温30℃;进样量10μL;检测波长230 nm。结果龙胆苦苷在0.151～1.51μg线性关系良好(r=0.999 6),芍药苷在0.075 2～0.752 0μg线性关系良好(r=0.999 8),丹酚酸B在0.113 2～1.358 4μg线性关系良好(r=0.999 5);平均回收率分别为龙胆苦苷99.5%、芍药苷101.95%、丹酚酸B 102.74%,RSD分别为1.02%、1.77%、1.81%。结论该方法准确、重现性好、可用于强肝胶囊的质量控制。     

HPLC法同时测定不同产地龙胆酒炙前后3种环烯醚萜苷

目的建立HPLC法同时测定不同产地龙胆Gentiana scabra Bge.饮片中龙胆苦苷、獐牙菜苦苷和獐芽菜苷的含有量。方法龙胆饮片甲醇提取物的分析采用Welchrom C_(18)柱(4.6 nm×250 mm,5μm);流动相甲醇(A)-水(B);梯度洗脱(0～25 min,8%～45%A;25～35 min,45%～48%A;35～45 min,48%～65%A;45～50 min,65%～90%A);检测波长240 nm;体积流量1.0 mL/min;柱温25℃。结果龙胆苦苷、獐牙菜苦苷、獐芽菜苷分别在1.25～40μg(r=0.999 5)、0.25～4μg(r=0.999 2)、10～320 ng(r=0.999 8)范围内线性关系良好,平均加样回收率分别为100.26%、99.84%、100.17%,RSD分别为1.32%、1.59%、1.16%。结论该方法稳定可靠,可用于龙胆饮片的质量控制。     

云南不同产地滇龙胆中龙胆苦苷的含量测定

目的 建立HPLC法测定云南不同产地滇龙胆中龙胆苦苷的方法.方法 色谱柱为Waters Sunfire RP18(250 mm×4.6 mm,5 μm)柱,流动相为甲醇-水溶液(20∶80),柱温35℃,体积流量1.0 ml/min,检测波长270 nm.结果 龙胆苦苷在0.077 4 ～ 1.160 4 mg(r = 0.999 8)线性关系良好,平均回收率为98.8%(RSD = 1.86%,n = 9),检测10批样品其龙胆苦苷的含量在2.75% ～4.87%之间.结论 该方法简便快速、准确,可为评价滇龙胆药材质量提供依据.     

HPLC同时测定龙胆中4种活性成分含量

目的:建立HPLC同时测定龙胆中龙胆苦苷、马钱酸、獐芽菜苦苷和獐芽菜苷含量的方法.方法:Inertsil ODS-SP柱(4.6 mm×150 mm,5μm),流动相甲醇(A)-0.4％磷酸水溶液(B),梯度洗脱(0～ 40 min,10％ ～ 30％A),流速为1.0 mL·min-1,柱温25℃,检测波长240 nm.结果:龙胆苦苷、马钱酸、獐芽菜苦苷和獐芽菜苷的线性范围分别为1.0～20 μg (r=0.999 7),1.0～20μg(r=0.999 6),1.0～20 μg(r=0.999 5),0.1～2.0 μg(r=0.999 5);平均加样回收率分别为98.9％,99.7％,99.1％,99.3％.结论:该方法准确、灵敏、可靠、重复性好,可用于龙胆的质量控制研究.     

HPLC测定刺芒龙胆不同部位中3种有效成分的含量

目的:建立反相高效液相色谱法同时测定刺芒龙胆植物不同部位落干酸、獐牙菜苦苷、龙胆苦苷的含量.方法:采用ZORBAX SB-C18(250 mm×4.6 mm,5 μm)色谱柱,流动相为甲醇-水(含0.04%磷酸)的比例25:75,流速1 mL·min-1,检测波长238 nm,柱温30℃.结果:3种成分均达到基线分离,落干酸、獐牙莱苦苷、龙胆苦苷的线性范围分别为0.039～1.56μg(r=0.9998),0.0725～1.45μg(r=0.9999),0.061～1.225μg(r=0.9997);回收率为101.3%(RSD=2.6%),98.7%(RSD=3.1%,99.6%(RSD=1.2%).结论:测定方法快速,结果准确、可靠.     

灵龙感冒胶囊中龙胆苦苷的含量测定

目的建立灵龙感冒胶囊中龙胆苦苷的含量测定方法。方法采用高效液相色谱法。色谱柱：Diamonsil C18（4.6 mm×250 mm,5μm）;流动相：甲醇-水（20︰80）;检测波长：272 nm;流速：1.0 mL/min;柱温：35℃。结果龙胆苦苷在0.32～4.01μg（r=0.999 9）范围内呈良好的线性关系,平均回收率为99.83%,RSD=0.34%（n=6）。结论本方法简便快捷、可靠性高、分离度较好,可作为灵龙感冒胶囊的质量控制方法。     

微波消解-电感耦合等离子体质谱法测定脉络宁注射液中25种矿物质元素

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。     

Die Lateralität und Lateralitätsinstabilität in der Diagnostik und Therapie

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.     

Journal of Acupuncture and Tuina Science Instructions for Authors

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.     

Yerba Mate or Paraguay Tea

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     

Ethnopharmacologic study of chinese rhubarb

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.     

Wirksamkeit der Akupunktur bei der Therapie von idiopathischen Schmeckstörungen: Eine randomisierte Placebo-kontrollierte Studie

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.     

Veränderungen der Herzratenvariabilität (HRV) während Low Level Lasernadelakupunktur: Placebokontrollierte Studie an 19 herzgesunden Probanden

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.     

瑞香科五属植物中酚性聚合物的结构特征、分布及药理活性研究进展

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。     

HPLC法同时测定沉香化滞丸中11种成分

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。