Determination of Andrographolide and Dehydroandrographolide in Andrographis paniculata Nees Materials and Related Patent Medicines by Reversed-Phase High Performance Liquid Chromatography [PDF]
, 2002 发展了穿心莲药材及其中成药中两种主要成分穿心莲内酯和脱水穿心莲内酯的反相高效液相色谱测定方法。采用甲醇振荡提取法进行样品前处理 ,在以乙腈 水为流动相作梯度洗脱、ODS柱、检测波长为 2 2 5nm的条件下 ,穿心莲内酯和脱水穿心莲内酯在 1 5min内可达到基线分离。两种内酯在 1 0mg/L～ 1 0 0mg/L时其浓度与峰面积成良好的线性关系 ,加标回收率为 96 %～ 1 0 4 %。该法适用于穿心莲药材及其制剂的质量分析检验A simple and accurate method for ...
徐晓琴 +4 more
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New Phytologist, Volume 247, Issue 2, Page 504-517, July 2025.Summary Repetitive DNA is a feature of all organisms, ranging from archaea and plants to humans. DNA repeats can be seen both in coding and in noncoding regions of the genome. Due to the recurring nature of the sequences, simple DNA repeats tend to be more prone to errors during replication and repair, resulting in variability in their unit length ...
Sridevi Sureshkumar +3 more
wiley +1 more source
Development of a quantitative ELISA detection method for Coxsackievirus A group 16 strain(CA16) antigen [PDF]
, 2012 目的:建立柯萨奇病毒A组16型(CA16)抗原的双抗体夹心ElISA定量检测方法,用于CA16灭活疫苗的研发和生产过程的抗原定量检测。方法:以CA16中和单抗T26H12为包被抗体、nA14b9为标酶抗体,构建定量检测CA16抗原的双抗体夹心ElISA方法,并对方法的特异性、灵敏度、精密度、准确性、线性和稳定性进行分析。结果:建立了双抗体夹心定量检测CA16抗原的ElISA方法。方法的线性相关系数r2=0.998,线性范围为8~128 ng/Ml,定量限度为8 ng/Ml;变异系数CV80 ...
何德磊 +8 more
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Analysis on the surveillance data of death causes among the registered residents in Taishun County， Zhejiang Province from 2016 to 2023 [PDF]
ObjectiveTo investigate the mortality level and leading causes of death among the registered residents in Taishun County, Zhejiang Province from 2016 to 2023, as as to provide evidence for the formulation of relevant disease prevention and control ...
WANG Fenghui, WENG Shizhong
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Hydraulic traits are coordinated but decoupled from carbon traits in herbaceous species
Functional Ecology, Volume 39, Issue 5, Page 1302-1317, May 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract Plant hydraulic traits primarily define the water regulation strategy, thus enabling a better understanding of vegetation structure, function and dynamics under varying hydro‐environments.
Ruike Huang +9 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2006 目的对室间质量评价的得分情况进行统计学分析,总结室内质控和室间质量评价的经验,以便更好地为临床服务。方法用全自动生化分析仪检测盲样19项临床生化指标。结果六年中质控检测19项指标,变异指数得分（VIS）A级占83.19%,B级占13.14%,C级占3.67%。1999年-2004年Na VIS得分A级从50%提高到60%,ClVIS得分A级从40%-88%。结论经过改进使过去结果不太准确的指标得到修正,质量控制对于临床生化检验结果的质量保证非常重要,只有做好室内质控和室间质量评价 ...
李红霞, 贾玫, 岳志红
doaj
The Isolation, Purification, Structure Identification and Bio-activity Assay of the Effective Components in Licorice and the Study of the Fingerprinting based on Activity [PDF]
, 2005 中药有效成分是其发挥药效作用的物质基础，对评价中药材的质量、制定中药质量控制标准控制、优化制剂工艺、揭示中药作用机制、实现中药现代化具有重要意义。甘草酸和甘草黄酮是中药甘草中主要的有效成分，目前的分离纯化方法存在着繁琐、工作量大的缺点，用做质量控制指标成分的标准品也由于制备困难无法满足市场需求，在活性研究方面也存在某些空白，本论文在甘草有效成分的分离纯化,结构鉴定,生物活性测试及指纹图谱技术方面进行了大量有益的研究探索 ...
傅博强
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Conservation Biology, Volume 39, Issue 1, February 2025.Abstract Trade restrictions are often advocated and implemented as measures to protect wild species threatened by overexploitation. However, in some instances, their efficacy has been questioned, notably by governments in the southern African (SADC) region, which tend to favor a sustainable use approach to wildlife management. We conducted a systematic
Christina Hiller +1 more
wiley +1 more source
Improvement of Health Care Quality of A Hospital in FuZhou [PDF]
, 2006 论文摘要在当今竞争日益激烈的医疗市场环境下，越来越多的医疗机构开始通过实施国际医疗质量管理标准，建立现代医疗质量管理体系，提高医疗护理服务水平，进而提高客户的忠诚度和满意度，减少医疗风险，促进自身发展。在这种形势下，A医院通过实施JCI医院评审标准认证来加强医疗质量管理，提高医院核心竞争力是必然的趋势。全文共分为四章：第一章对福州医疗行业情况进行分析。首先对福州医疗行业的波特竞争模型作简要说明，然后对福州医疗行业竞争现状作具体分析，着重论述了在目前医疗服务行业的发展及变化趋势 ...
刘丹
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Quantifying water effluent violations and enforcement impacts using causal AI
Policy &Internet, Volume 16, Issue 2, Page 317-338, June 2024.Abstract In the landscape of environmental governance, controlling water pollution through the regulation of point sources is vital as it preserves ecosystems, protects human health, ensures legal compliance, and fulfills global environmental responsibilities.
Yingjie Wang +3 more
wiley +1 more source