蛇伤解毒散质量标准的研究

目的 建立蛇伤解毒散的质量标准.方法 采用显微鉴别法对制剂中大黄、黄芩、黄柏进行鉴别,用理化鉴别法对大黄进行鉴别,用薄层色谱法对大黄、黄柏进行鉴别,用高效液相色谱法对黄芩苷进行含量测定.结果 显微鉴别法可以鉴别大黄、黄芩、黄柏,理化鉴别法可以鉴别大黄,薄层色谱法可以鉴别大黄、黄柏,黄芩苷含量不少于15.0 mg/g.结论 建立的测定方法简便、准确,灵敏度高,重复性好,可用于蛇伤解毒散的质量控制.     

复方新会陈皮含片的鉴别研究

目的建立复方新会陈皮含片的鉴别方法。方法采用薄层色谱与化学鉴别法。结果在选定的条件下,薄层色谱法鉴别陈皮、蛇胆汁、甘草、桔梗的斑点清晰,且阴性对照无干扰;化学方法鉴别氯化钠,反应结果明显。结论建立的鉴别方法结果可靠,且操作简便,可用于复方新会陈皮含片的质量控制。     

无患子及其制剂的薄层色谱鉴别探讨

目的探讨无患子及其制剂的鉴别方法。方法采用薄层色谱法在不同条件下进行薄层色谱考察,选择适宜的薄层色谱条件。结果最佳薄层色谱条件为:以正丁醇-乙酸乙酯-水-浓氨水(40∶10∶50∶1;V∶V∶V∶V)上层液为展开剂,室内环境中展开,晾干,喷5%磷钼酸乙醇液,105℃加热至斑点清晰,在日光下检视,无患子及其在制剂中的成分分离效果良好,色谱斑点清晰,耐用性好。结论该法操作简便可靠,分离度较好,可作为无患子及其制剂的鉴别方法。     

红梅汤薄层色谱鉴别研究

目的建立红梅汤制剂主要药材红梅叶、锡叶藤的鉴别方法。方法采用薄层色谱法对红梅汤制剂中的红梅叶、锡叶藤进行鉴别。结果在确定的条件下,红梅汤中红梅叶、锡叶藤药材的薄层色谱分离效果良好,斑点清晰,重现性好。结论该方法简便可靠,分离度较好,可用于红梅汤的质量控制。     

龙脷叶茎显微和薄层色谱鉴别的研究

龙脷叶( Sauropus spatulifolius Beille)为大戟科守宫木属植物,主要分布于我国的广西和广东等地,为广西常用壮药,具有润肺止咳、通便之功效,在民间使用广泛。现代研究表明,龙脷叶具有较好的抗炎和镇痛作用。全草均可入药,为国家药典收载品种。但其鉴别方法尚未完全建立,质量标准有待进一步完善。目前其叶与根的显微鉴别已有报道,而茎的鉴别未见有相关报道,因此有必要对龙脷叶茎的鉴别方法进行研究。该研究采用生药学显微鉴别和薄层色谱法对龙脷叶的茎进行了鉴别。结果表明：龙脷叶茎的主要显微特征为木栓层有7~12列细胞,皮层中含有较多淀粉粒,并含有纤维束,韧皮部窄,木质部宽,射线明显,髓部大;粉末可见螺纹、网纹及梯纹导管,伴有草酸钙簇晶,淀粉粒较小,有纤维。薄层色谱采用对照药材进行对照,发现样品斑点与对照药材斑点数量和位置一一对应。上述特征可作为鉴别和制定龙脷叶茎质量标准的参考依据,该研究结果为建立龙脷叶茎的鉴别方法以及进一步建立其质量标准提供了科学依据。     

藏药翼首草薄层鉴别方法研究

本文对藏药翼首草薄层鉴别方法进行系统考察。试验以熊果酸为对照品,采用单因素试验方法,对影响翼首草薄层色谱的因素进行了考察,筛选最佳薄层鉴别方法。结果采用硅胶G板,薄层板置展开缸中饱和10min,以10%硫酸乙醇溶液为显色剂,105℃加热至斑点清晰,置日光和紫外光灯(365 nm)下检视,所得的薄层色谱分离效果较好。研究结果表明本法分离效果好、重复性好,可用于藏药翼首草的质量控制。     

薄层扫描法测定保元肠疡胶囊中人参皂甙Rg1的含量

本文报道了用双波长薄层扫描法测定中成药制剂保元肠疡胶囊中微量人参皂苷Ｒｇ１的含量。方法稳定、检测灵敏度高,变异系数小于５％。可作为该成药制剂的质量控制标准。     

薄层扫描法测定保元肠疡胶囊中人参皂苷Rg_1的含量

本文报道了用双波长薄层扫描法测定中成药制剂保元肠疡胶囊中微量人参皂苷Ｒｇ１的含量．方法稳定、检测灵敏度高,变异系数小于５％．可作为该成药制剂的质量控制标准．     

不同制剂中相同中草药薄层色谱鉴别探讨

目的探讨不同制剂中相同中药材统一鉴别的可行性。方法采用薄层色谱法,取不同制剂适量,按统一方法制备供试液、层析条件、显色与检视斑点。结果多种含大黄、人参的制剂,薄层色谱斑点清晰明显。结论本实验方法可行,在不同制剂中相同药材鉴别有较统一的方法为好。     

海南黎药接骨草质量标准研究

为制定海南黎药接骨草质量标准,以《中华人民共和国药典》2015年版质量检定的基本原则为指导,采用性状观察法、显微观察法、薄层色谱法、烘干法、总灰分测定法、醇溶性热浸法分别研究接骨草的性状和显微结构特征、薄层色谱鉴别、水分、总灰分以及醇溶性浸出物。本研究明确了接骨草药材性状和显微结构特征;建立了薄层鉴别方法;接骨草药材质量标准规定水分不得超过10.0%、总灰分不得超过10.0%以及醇溶性浸出物不得少于8.0%。因此,研究制定的接骨草药材质量标准,可为该药材的质量控制提供依据。     

黄褐毛忍冬生药学鉴定研究

黄褐毛忍冬具有消炎、抗菌、免疫调节等多种功效,但容易与忍冬属其他物种混淆,通过生药学研究将为黄褐毛忍冬的鉴定工作和药材标准的制定提供科学依据。该文采用植物学鉴定、显微镜观察、薄层色谱鉴定和分子鉴定的方法从植物学性状、药材显微特征、薄层色谱和ITS(internal transcribed spacer)序列特征等方面对黄褐毛忍冬进行了专属性特征鉴定。结果表明：(1)黄褐毛忍冬花朵横切面分泌细胞较多,花瓣外表面有黄褐色腺毛;花冠表皮上层细胞为多角形,蚌形花粉囊对开,花粉粒形状规则,有三角形和卵圆形两种,油室椭圆形。(2)粉末显微检测发现中柱鞘纤维呈短棱形;木栓细胞棱角明显,呈浅黄色;木纤维呈粗短的棱形,偶见有弯曲;网纹导管较多,细胞腔密布草酸钙方晶。(3)薄层色谱显示黄褐毛忍冬花中三柰酚含量较高,三柰酚可作为黄褐毛忍冬的检视成分。(4)基于ITS序列系统聚类结果显示,ITS序列可以作为DNA条形码将黄褐毛忍冬、灰毡毛忍冬、华南忍冬和金银花准确地区分。上述结果表明黄褐毛忍冬生药学特征明显,该研究为黄褐毛忍冬药材鉴定、成分分析和质量标准制定提供了参考。     

珠芽景天的显微与薄层色谱鉴定

运用形态解剖学和薄层色谱鉴定的方法,对植物药珠芽景天（Sedum bulbiferumMakino）进行了鉴定研究。结果显示该植物药鉴别特征明显,如茎横切面的皮层外侧及中柱薄壁组织散布有紫红色细胞,髓部细胞较小,壁不增厚;叶下表皮气孔密布,常可见2个（有时3个）相距较近;薄层色谱中具多个特征性荧光斑点。文中描述了该植物药材的性状、显微与薄层色谱特征,还与同属近缘植物药垂盆草、佛甲草、凹叶景天进行了薄层色谱比较,并结合四者茎的显微结构,探讨了相互之间的亲缘关系。研究结果为珠芽景天的应用提供了可靠的鉴定依据。     

Thin layer chromatographic determination of organic acids for rapid identification of bifidobacteria at genus level

This study presents a simple and fast method for the identification of bifidobacteria using a thin layer chromatographic (TLC) analysis of the short chain fatty acids in a culture broth. When the chromatogram was sprayed with the indicator solution (methyl red-bromophenol blue in 70% ethanol), lactic acid exhibited two red spots, and acetic acid, propionic acid, and butyric acid all produced blue spots. Succinic acid and citric acid produced yellow and dark yellow spot, respectively. In addition, these organic acids showed different R(f) values. The total time taken to analyze the organic acids in the 10 bacterial culture broths using the proposed method was approximately 50 min. The proposed TLC method was used to analyze the organic acids in culture broths of the following strains, five Bifidobacterium species. (Bifidobacterium longum, B. breve, B. infantis, B. bifidum, and B. adolescentis) and five other lactic acid bacteria strains (Lactobacillus casei, L. bulgaricus, L. acidophilus, Streptococcus thermophilus, and S. lactis). Both spots of lactic acid and acetic acid were detected on all the TLC plates from the five bifidobacterial culture broths. The five other lactic acid bacterial culture broths, however, only exhibited lactic acid spots. Accordingly, the proposed TLC method would appear to be a useful tool for rapid identification of Bifidobacterium spp. at the genus level.     

拔毒消炎软膏质量控制研究

目的研究拔毒消炎软膏的质量控制方法。方法用薄层色谱法(HPLC)对制剂中大黄、黄柏进行定性鉴别,高效液相色谱法测定大黄酚的含量。结果定性鉴别薄层色谱斑点特征明显;高效液相色谱法测定含量,大黄酚在0.061~0.304μg/ml范围内呈良好的线性关系(r=0.9954),平均加样回收率为98.68%,RSD=1.39%。结论采用薄层色谱法定性、高效液相色谱法定量,简便准确、重现性良好,可有效控制该制剂质量。     

Using thin-layer chromatography of fecal bile acids to study the leopard (<Emphasis Type="Italic">Panthera pardus ciscaucasica</Emphasis>) population

Thin-layer chromatography (TLC) of fecal bile acids has been used to confirm visual identification of scat samples found in Armenia in 2004–2005 and attributed to the leopard (Panthera pardus ciscaucasica). The results of TLC do not differ significantly from those of visual identification, confirming the reliability of the latter method. Taking into account the frequency and distribution of fresh scats, two priority areas for leopard conservation have been identified: the Central and Khachadzor districts of the Khosrov Reserve and the Nuvadi-Shvanidzor area in eastern Meghri Ridge.     

The determination of huperzine A in European Lycopodiaceae species by HPLC-UV-MS

A rapid qualitative HPLC-UV-MS method was developed for the detection of huperzine A in Lycopodiaceae species. HPLC coupled with mass spectrometry experiments allowed the identification of the alkaloid and enabled targeted analysis of complex matrices such as herbal extracts. Huperzine A was detected by single ion monitoring of the pseudomolecular ion [M + H]+ at m/z 243.2. The alkaloid was also detected on TLC in a bioautographic enzyme assay with acetylcholinesterase to show the activity of the compound. Four Lycopodiaceae species collected in Switzerland were tested by these methods and Huperzia selago (L.) Bernh. ex Schrank et Martius was the only species found to contain huperzine A.     

薄层色谱法鉴定天麻胶囊中的天麻素

为了建立天麻胶囊中主要有效成分天麻素的快速鉴定方法,根据天麻素的理化特性,使用乙醇和甲醇提取天麻胶囊中的天麻素,使用薄层色谱法进行鉴定,并与高效液相色谱法的分析结果进行比较。结果表明,薄层色谱法的鉴定结果与高效液相色谱法的检测结果一致,能较准确地鉴别天麻胶囊的真伪。本研究结果表明薄层色谱法能快速简便、准确灵敏地检测天麻胶囊中的有效成分,可作为法定鉴定方法的补充,对天麻胶囊实施快速初筛。     

Identification of guanosine 3′:5′-monophosphate in the fruit of Zizyphus jujuba

Evidence is presented here confirming the identification of guanosine 3′: 5′-monophosphate (c GMP) in the tissue of higher plants. The c GMP activity detected in fruits of Zizyphus jujuba was separated from the c AMP activity also present. The separated sample was extensively purified by Bio-Rad AG 1 × 4 and aluminium oxide CC, and by TLC. The purified sample showed the same physicochemical properties as authentic c GMP by TLC using different solvents and by UV spectroscopy, and was decomposable by cyclic nucleotide-specific phosphodiesterase. The identification was further supported by HPLC. The amount of c GMP present increases 90-fold during fruit ripening.     

心痛宁滴丸中香附的薄层色谱鉴别及HPLC法测阿魏酸的含量

目的建立心痛宁滴丸中香附的薄层色谱鉴别和阿魏酸的分析方法。方法用TLC法鉴别香附中的α-香附酮;用HPLC法测定川芎中阿魏酸的含量,Hypersil ODS-C18分析柱（250 mm×4.6 mm,5μm）检测,波长：323 nm,流动相：甲醇-水-冰醋酸（30∶70∶0.7）,流速：l ml/min,柱温：室温。结果薄层法鉴别香附中的香附酮结果满意;HPLC法测阿魏酸,线性范围0.005-0.5μg（r=0.9999）,回收率分别为98.0%（n=6）。结论上述方法准确、专属性强,可作为心痛宁滴丸的香附定性和阿魏酸定量的分析方法。