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泌感片的薄层鉴别和盐酸小檗碱的含量测定 总被引:1,自引:1,他引:0
目的应用薄层色谱法对黄柏、甘草、柴胡、续断进行鉴别和高效液相色谱法测定盐酸小檗碱的含量。方法采用薄层色谱鉴别黄柏、甘草、柴胡、续断及高效液相色谱测定盐酸小檗碱含量,Shim—pack—C18柱(5μm,250mm×4.6mm),乙腈0.05mol·L^-1-磷酸二氢钠溶液(28:72)为流动相,检测波长347nm。结果薄层斑点清晰,含量测定线性范围为9.95~99.5mg·L^-1;r=1.0000,回收率为99.42%,RSD=1.21%。结论薄层色谱可用于黄柏、甘草、柴胡、续断的定性鉴别,且高效液相色谱法测定泌感片中盐酸小檗碱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
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目的探讨丹桂香颗粒中盐酸小檗碱的含量控制方法。方法以正丁醇-冰醋酸-水(5:1:1)为展开剂,在激发波长A=365nm处进行荧光扫描,测定丹桂香颗粒中盐酸小檗碱的含量。结果盐酸小檗碱点样量线性范围是0.04-0.12μg,平均回收率为99.63%,RSD为0.39%(n=5)。结论薄层扫描法操作简便易行,结果准确,可作为该制剂的质量控制方法。 相似文献
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目的:建立烧伤搽剂中盐酸小檗碱的含量测定方法。方法:采用薄层扫描法,以苯-醋酸乙酯-异丙醇-甲醇-水(6:3:1.5:1.5:0.3)为展开剂,检测波长为366nm。结果:盐酸小檗碱进样量在0.032-0.160μg范围内线性关系良好,r=0.9992,平均回收率为97.96%,RSD为0.77%。结论:本方法简便、准确,可用于烧伤搽剂的质量控制。 相似文献
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高效液相色谱法测定香连片中盐酸小檗碱含量 总被引:1,自引:0,他引:1
目的建立香连片的盐酸小檗碱含量的测定方法。方法采用高效液相色谱法对方中的盐酸小檗碱进行含量测定,采用ODS色谱柱(250mm×4.6mm,5μm),柱温为室温,流动相为每100ml加十二烷基磺酸钠0.1g的乙腈旬.1%磷酸溶液(49:51),检测波长为265nm,流速:1ml/min。结果盐酸小檗碱进样量在1.95~13.0μg范围内线性良好,r=0.9995,平均回收率为98.84%(n=5),RSD=1.47%。结论试验结果表明本法简便快速,重现性好,结果准确可靠,可以作为香连片中盐酸小檗碱含量测定的方法。 相似文献
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目的:研究建立蒲连清胃片的质量控制方法。方法:采用薄层色谱法对蒲连清胃片中的当归、牡丹皮进行鉴别;采用高效液相法对蒲连清胃片中的盐酸小檗碱进行含量测定。结果:盐酸小檗碱在0.484~4.840μg范围内呈线性关系(r=0.9996),平均回收率为99.12%,PuSD=1.15%(n=6)。结论:该方法准确、可靠,可作为蒲连清胃片的鉴别和含量测定方法。 相似文献
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目的 探讨男性会阴部手术后伤口暴露疗法的可行性.方法 选择450例男性会阴部手术患者,其中250例术后伤口采用暴露疗法,200例术后伤口采用传统包扎疗法,术后观察伤口细菌感染和愈合情况,统计出伤口甲级愈合率,伤口细菌感染率,采用x2检验,用SPSS 17.0统计软件计算.结果 伤口甲级愈合率暴露疗法组为92.8%,明显高于包扎疗法组的91.5%(x2=12.2,P〈0.01).伤口细菌感染率暴露疗法组和包扎疗法组相近(x2=0.06,P〉0.05).结论 男性会阴部手术后伤口采用暴露疗法不会增加伤口细菌感染率,且伤口甲级愈合率明显提高. 相似文献
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Eric Wenzler Kristen L. Bunnell Larry H. Danziger 《International journal of antimicrobial agents》2018,51(5):700-706
Background
There is a need to identify practice patterns of polymyxin use, quantify gaps in knowledge, and recognize areas of persistent confusion.Methods
A structured electronic survey was distributed to physicians, pharmacists and microbiologists. Demographic information was obtained, along with data regarding availability, stewardship principles, therapeutic usage, dosing, microbiological testing, and knowledge, attitudes and beliefs regarding the polymyxins.Results
In total, there were 420 respondents with a median of 8 (interquartile range 4–15) years of experience in infectious diseases (52.5%) and critical care (35%). Of the respondents who reported that only one polymyxin was available for use, 17.1% used polymyxin B. Over half (52.5%) of the respondents utilized a loading dose very often/always, and 66.8% dosed both polymyxins in milligrams, with the most common doses of colistin and polymyxin B being 2.5?mg/kg twice daily (60.3%) and 1.5?mg/kg twice daily (65%), respectively, for patients with normal renal function. Polymyxins were most often used for respiratory infections (63%) in combination with a carbapenem (63.6%). Approximately 85% of respondents reported their knowledge level to be fair, good or very good, although 34.9% answered two of the three knowledge questions incorrectly. More than 70% of respondents agreed that confusion exists in all surveyed areas of polymyxin use. Almost all respondents (91.2%) agreed that a polymyxin guideline would be a helpful resource.Conclusions
This survey revealed objective and subjective variability in the use and perception of the polymyxins, and identified several areas in which they were being used contrary to the available evidence. The information provided herein lays the framework to harmonize clinical practice, guide future research and shape consensus guidelines. 相似文献14.
目的 探讨男性会阴部手术后伤口暴露疗法的可行性.方法 选择450例男性会阴部手术患者,其中250例术后伤口采用暴露疗法,200例术后伤口采用传统包扎疗法,术后观察伤口细菌感染和愈合情况,统计出伤口甲级愈合率,伤口细菌感染率,采用x2检验,用SPSS 17.0统计软件计算.结果 伤口甲级愈合率暴露疗法组为92.8%,明显高于包扎疗法组的91.5%(x2=12.2,P<0.01).伤口细菌感染率暴露疗法组和包扎疗法组相近(x2=0.06,P>0.05).结论 男性会阴部手术后伤口采用暴露疗法不会增加伤口细菌感染率,且伤口甲级愈合率明显提高. 相似文献
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目的观察百乐眠胶囊治疗肝郁阴虚型失眠症的疗效。方法选择肝郁阴虚型失眠症患者50例,口服百乐眠胶囊,4粒/次,2次/d,14d为1个疗程,连续治疗两个疗程。结果在治疗前后用阿森斯(Athens)失眠量表(AIS)进行睡眠质量评分,差异有统计学意义(P<0.05)。结论百乐眠胶囊是治疗肝郁阴虚型失眠症的安全有效药物。 相似文献
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The ability of
9-tetrahydrocannabinol (THC), cannabinol (CBN), cannabidiol (CBD), 11-OH THC and 8,11-diOH THC to antagonise the abdominal constriction response in the mouse induced by formic acid, phenylquinone, 5-hydroxytryptamine, prostaglandin E1 (PGE1) and bradykinin was tested. THC was an effective antagonist against all nociceptive agents with an ED50 in all cases between 1.0 and 2.6 mg/kg. CBN, while also effective against all nociceptive agents, was less potent than THC, with an ED50 range between 46.2 and 112.5 mg/kg. CBD in doses as high as 200 mg/kg was without effect. Using PGE1 as the nociceptive agent, 11-OH THC was equipotent to THC while 8,11-diOH THC was inactive. Naloxone, while able to antagonise the antinociceptive effect of morphine against formic acid-induced writhing, did not reverse the antinociceptive effects of THC. There were no pharmacological interactions between THC, CBD and CBN. 相似文献
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黄惠莲 《中国现代药物应用》2012,6(3):1-3
目的 论钩藤的带钩率与质量的关系,建立钩藤的显微鉴定和异钩藤碱的高效液相含量测定.方法 采用中药材粉末显微鉴定法,寻找钩藤药材在显微镜下的最常见的特征性细胞与带钩率的关系;用高效液相法测定不同带钩率的钩藤药材提取物的异钩藤碱含量.结果 显微鉴定:特征性细胞与带钩率不同有关联;含量测定方法:操作简单,准确,异钩藤碱在1.0943~70.0350 μg之间呈良好的线性关系,异钩藤碱的回收率为 97.83%.结论 本实验用定性、定量方法来检验不同带钩率的钩藤药材与提取物的质量,对药材的进一步开发利用提供了科学依据.并对传统用药习惯进行论证. 相似文献
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毛细现象在日常生活和科技生产中都有着重要的作用。大部分同学在计算毛细管中液面上升高度时,往往因为不能抓住模型的本质而产生错误。本文针对两种不同的模型通过对比计算方法,指出了错误产生的原因从而加以规避。 相似文献