共查询到19条相似文献,搜索用时 859 毫秒
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目的:建立小儿腹泻散中枯矾的含量测定方法。方法采用EDTA络合滴定法。结果样品中枯矾的平均回收率为99.86%, RSD为0.28%。结论本方法专属性强、精密度好、准确度高,可用于小儿腹泻散中枯矾的含量测定。 相似文献
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摘要:目的:建立离子色谱法测定复方田七胃痛胶囊中瓦楞子、枯矾、氧化镁、碳酸氢钠4组分含量的方法。方法:采用Dionex IonPacTMCS12A阳离子交换色谱柱(4 mm×250 mm),Dionex CERS 500-4 mm抑制器,以15 mmol·ml-1甲磺酸为淋洗液,流速为1.0 ml·min-1,进样量10μl,电导检测器进行检测,瓦楞子、枯矾的含量分别以碳酸钙、含水硫酸铝钾计。样品经酸溶解,离子色谱法测定其钠、钾、镁、钙离子的含量。结果:碳酸氢钠在0.999~99.874μg·ml-1、含水硫酸铝钾在1.899~189.882μg·ml-1、氧化镁在1.001~100.064μg·ml-1、碳酸钙在1.500~150.019μg·ml-1浓度范围内线性关系良好,相关系数(r)在0.999 9~1.000 0之间;平均加样回收率分别为97.80%,101.12%,100.78%,100.06%(n=9),RSD分别为1.26%,0.78%,1.12%,1.01%。结论:本法专属性强、操作简便、结果准确,可用于复方田七胃痛胶囊中瓦楞子、枯矾、氧化镁、碳酸氢钠的含量测定。 相似文献
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本文应用比色法测定大黄疱疹水中主药大黄的大黄素含量;重量法测定冰片含量;滴定法测定枯矾含量;留样观察法考察制剂的稳定性。结果表明,方法简便可行,效果理想。 相似文献
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郑德树 《实用口腔医学杂志》1976,(4)
两年来,我们用复方三黄散治疗急慢性化脓性中耳炎一百二十三例,有效率93.5%,治愈率65%。配方:一、黄连三钱黄柏二钱黄芩三钱冰片五分枯矾一钱呋喃西林三克。以上各药为末吹耳。二、黄连二钱黄柏二钱黄芩三钱冰片五分枯矾三钱硫磺二钱硼砂一钱血蝎五分。以上各药为末吹耳。耳痛、耳呜 相似文献
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用电热鼓风干燥箱炮制枯矾马振钰(山东省胶州市中医院胶州市266300)枯矾是一种常见中药收涩剂。为白矾[含KAl(SO4)2·12H2O]失去结晶水后的生成物,具有收敛止血,涩肠止泻,收湿止痒的作用。《全国中药炮制规范》1988年版记载枯矾的炮制方法... 相似文献
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1.以明礬液倒入碳酸钠溶液中,混合液之酸度须控制为pH6(±0.5)。2.所得膠体,先用普通水洗滌,继用0.4%碳酸氢钾溶液在抽氣漏斗上洗滌?チ蛩猁}之手續须一次完成之,烘乾以後即不能重行处理,否则,制酸力急速下降。3.乾燥可控制在90—110℃(约6—10小时),大量烘乾时应注意湿空氣之排出。4.产品的制酸力一般为250—280毫/克,最高达315.9毫升/克;硫酸鹽之含量远低於药典规定;游离鹼亦远低於苏联药典之规定。 相似文献
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目的评价黄芩及粘毛黄芩中活性成分的相似性及多样性,研究不同干燥方法对两者的影响。方法在资源调查、收集的基础上,经不同干燥方法处理后,以HPLC法测定活性成分含量,并进行对比分析。结果 60℃烘干提高了黄芩中的黄芩素含量,对其他成分没有显著影响;但对粘毛黄芩中黄芩苷和汉黄芩苷的含量有一定程度的降低。另外,粘毛黄芩中未检出野黄芩苷;粘毛黄芩中黄芩苷和汉黄芩苷的含量(分别为9.89%和2.27%)与黄芩(分别为10.23%和2.33%)相比无显著差异(P>0.05),但黄芩素和汉黄芩素的含量(分别为0.21%和0.08%)均显著低于黄芩(分别为0.40%和0.16%)(P<0.05)。结论不同干燥方法对活性成分有一定影响,粘毛黄芩与黄芩活性成分有差异。 相似文献
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目的:对黔产葎草鲜品和干品雄花、雌花挥发性化学成分进行分析与比较。方法:采用固相微萃取技术提取样品挥发性化学成分,用气相色谱-质谱联用技术对挥发油进行分析鉴定,以峰面积归一化法计算各组分的质量分数。结果:在葎草鲜品雄花、雌花和干品雄花、雌花中分别鉴定出55、41、51、32个组分,分别占挥发油总峰面积的96.432%、97.034%、95.193%和68.896%。其中,鲜品与干品中质量分数较大的共同化学成分为β-石竹烯、(E)-β-金合欢烯;质量分数差异较大的化学成分为β-石竹烯(鲜品:49.370%,干品:76.029%)、β-月桂烯(鲜品:15.100%,干品:2.360%)、β-榄香烯(鲜品:9.847%,干品:3.095%)。结论:黔产葎草花雄花中挥发油化学成分多于雌花,鲜品多于干品。 相似文献
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Oligodinucleotides containing CpG motifs (CpG ODN) are strong adjuvants for immune responses, particularly in mice, the immunostimulatory effects of CpG in combination with aluminum hydroxide (alum) or Emulsigen (Em) were investigated in cattle, rabbits or mice, but not piglets. In this report, using the swine streptococcus as model bacteria, the efficacy of CpG ODN as an adjuvant for piglets was assessed alone and in combination with alum (CpG/alum) or Em (CpG/Em). The CpG/alum or CpG/Em combination elicited greater immune responses to swine streptococcic septicemia killed vaccine (SSSK vaccine) compared with CpG alone, or alum or Em. A GpC/alum or GpC/Em combination did not have the same effects as CpG/alum or CpG/Em suggesting that the adjuvanticity was related to the CpG motifs. In addition, we also found that the 10% Em in combination with CpG ODN had similar immunological effects as 30% Em combination. Our results demonstrate that the addition of CpG ODN to alum or to Em significantly improves the efficiency of the adjuvants in piglets. 相似文献
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骨疏丹提取物的大孔吸附树脂纯化工艺研究 总被引:1,自引:0,他引:1
目的筛选D101大孔吸附树脂纯化骨疏丹提取物的最佳工艺。方法以总黄酮、总香豆素的转移率及其在固形物中的质量分数之和(纯度)为指标,通过动态吸附-解吸正交试验对影响大孔吸附树脂富集纯化因素进行优化,用HPLC法测定优选工艺纯化前后固形物中5种活性成分的质量浓度,计算其含量质量分数,并验证工艺的可靠性。结果 D101型大孔吸附树脂纯化骨疏丹提取物的上样质量浓度为0.250 kg.L-1(生药质量浓度),上样体积为2.5倍树脂柱床体积(body vol-ume,BV),吸附速率2 BV.h-1,水洗体积5 BV。用体积分数为80%乙醇溶液洗脱5 BV,洗脱速率5 BV.h-1。纯化后总黄酮转移率为60.2%,总香豆素转移率为81.2%,固形物中总黄酮、总香豆素质量分数之和(纯度)为60.1%,约为纯化前的3倍。固形物中5种活性成分质量分数之和为纯化前的3.5倍。结论纯化工艺简单、稳定,提高骨疏丹中活性组分的含量,减少药物服用量。 相似文献
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The effect of spray drying conditions on the chemical composition of Brazilian green propolis extract was investigated using a factorial design and high performance liquid chromatography. The raw and dried extract contents of caffeic acid, p-coumaric acid, drupanin, isosakuranetin, artepillin C, baccharin and 2,2-dimethyl-6-carboxyethenyl-2H-1-benzopyran were quantified using veratraldehyde (3,4-dimethoxybenzaldehyde) as internal standard. The baccharin content in spray-dried propolis was affected by the drying temperature with a 5% significance level, while the coumaric acid and drupanin contents were dependent on drying temperature at a 15% significance level. The other chemical markers, caffeic acid, isosakuranetin, artepillin C and 2,2-dimethyl-6-carboxyethenyl-2H-1-benzopyran, showed to be independent of drying conditions. However, all the chemical markers showed some loss on drying, which varied from 30 to 50%. The results showed that prenylated compounds are sensitive to drying, but their losses may be considerably reduced under low temperatures, around 40 degrees C. The antioxidant activity of the spray dried propolis was determined by the diphenylpicrylhydrazyl (DPPH) method and showed a quadratic dependency on the temperature; extract feed rate and the interaction between them. However, spray dried propolis extracts presented antioxidant activities similar to the original propolis tincturae. 相似文献
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目的:在调研和检验的基础上,分析我国当前中药白矾的市场质量问题,为监管工作提供建议。方法:产区和市场调研、检验数据和文献整理相结合,分析白矾质量、标准问题及其产生不合格的原因,同时提出解决方案。结果:铵盐冒充或掺伪白矾的问题较为严重,市场抽验不合格率为76%,同时发现有造假现象。通过系列针对性研究,完善了白矾现行质量标准。结论:白矾质量不合格问题较为严重,掺伪造假行为严重危害人民群众用药安全和中药质量。提升白矾药材及饮片质量,应加强源头治理,从规范生产入手。 相似文献