Molecularly imprinted polymers as the extracted sorbents of clenbuterol ahead of liquid chromatographic determination     

Sovichea Lay  Hai-ning Yu  Bao-xiang Hu  Sheng-rong Shen 《Journal of Zhejiang University. Science. B》2016,17(6):465-475

A pre-treatment methodology for clenbuterol hydrochloride (CLEN) isolation and enrichment in a complex matrix environment was developed through exploiting molecularly imprinted polymers (MIPs). CLEN-imprinted polymers were synthesized by the combined use of ally-β-cyclodextrin (ally-β-CD) and methacrylic acid (MAA), allyl-β-CD and acrylonitrile (AN), and allyl-β-CD and methyl methacrylate (MMA) as the binary functional monomers. MAA-linked allyl-β-CD MIPs (M-MAA) were characterized by Fourier transform-infrared (FT-IR) spectroscopy and a scanning electron microscope (SEM). Based upon the results, M-MAA polymers generally proved to be an excellent selective extraction compared to its references: AN-linked allyl-β-CD MIPs (M-AN) and MMA-linked allyl-β-CD MIPs (M-MMA). M-MAA polymers were eventually chosen to run through a molecularly imprinted solid-phase extraction (MISPE) micro-column to enrich CLEN residues spiked in pig livers. A high recovery was achieved, ranging from 91.03% to 96.76% with relative standard deviation (RSD) ≤4.45%.  相似文献   

论高校图书馆员继续教育的后续跟踪机制     

胡伟华 《丽水学院学报》2007,29(1):126-128

全文分析了高校图书馆员继续教育的现状,阐述了继续教育后续跟踪机制的建立原则,探讨了继续教育后续跟踪机制的构成要素.  相似文献   

大学组织内部机构设置协调机制探析     

胡仁东  戚业国 《高等工程教育研究》2007,(5):64-67

考察大学组织内部机构设置,利益、权力和市场三种协调机制起着重要的平衡作用.利益协调受到实用与功利取向的影响;权力协调通过大学组织内部学术权力和行政权力的相互作用--挤压与钳制而起作用;在消费与服务的导向下,市场协调对机构设置产生不小的影响.大学组织内部机构的设置不是简单的学科扩张的结果,也不仅是学术权力和行政权力作用的结果,它是由利益、权力和市场共同作用的结果.  相似文献   

The Development of the Olympic Narrative in Chinese Elite Sport Discourse from Its First Successful Olympic Bid to the Post-Beijing Games Era     

Richard Xiaoqian Hu  Ian Henry 《国际体育史杂志》2016,33(12):1427-1448

Abstract

As a phenomenon exogenous to China, the Olympics have been proactively interpreted in the local context since China’s entry (and subsequent re-entry in 1984) into the Olympic movement. With China’s increasing involvement in promoting three bids to host the Olympic Games, two of which were successful, respectively, in 2001 and 2015, the nature of the discourse of key stakeholders in relation to Chinese elite sport has both reflected and reshaped the meaning of the Games to Chinese elite sport. This paper examines the discursive construction process of the Olympics in the Chinese elite sport system by key stakeholders through analyzing statements of political figures on sport and Olympic phenomena, Chinese elite sport policy documents, and the commentaries of leading Chinese sport academics. The analysis of discourse highlights two main features in the construction of the Games in official accounts during the period under investigation. The development of these two themes reflects the nature of the Chinese Olympic discourse, manifests the political power over the interpretation of the Olympics in Chinese context, and continues to characterize the on-going major themes in Chinese elite sport policy.  相似文献   

周恩来和他的侄儿侄女     

胡红明  刘芳芳 《Journal of Zhangzhou Technical Institute》2004,6(4):14-15

周恩来没有亲生儿女,从投身革命的那一天起,他就把毕业精力贡献给祖国和人民.新中国成立后,几个侄儿侄女到了周恩来身边.周恩来和邓颖超一向视教育孩子为自己义不容辞的责任.他们经常召开家庭会议或找孩子们谈话,鼓励他们努力改造世界观.对周秉钧和周秉华参军,周秉建去农村插队,周恩来一次又一次给予热情的支持和鼓励.  相似文献   

立足地域特色与资源优势优化创新选题思路--新疆图书选题存在的问题与发展对策     

姚永春  宋文静 《出版科学》2016,24(3):47-51

分析新疆出版业图书选题存在的问题,指出新疆具有浓郁的地域特色和丰富的民族文化资源,图书选题策划应当充分发挥地域特色和资源优势,着力策划民族语言类、非物质遗产类、“一带一路”类选题,繁荣区域文化,打造有新疆特色的民族出版业。  相似文献   

用稳态近似法推导反应速度方程时应注意的一个问题     

胡跃华 《赣南师范学院学报》1990,(Z1)

用稳态近似法推导反应的速度方程时,最后所导出的速度方程有时会出现由不不同数值而组成的系数。针对这个问题,本文指出了两种避免出现该问题的方法。  相似文献   

关于我国理工科大学文科教育的几点认识     

胡显章  张绪潭  王成鑫 《大连大学学报》1996,(3)

在理工科大学生中进行文科教育,是培养21世纪的社会主义建设者和接班人的重要途径,高素质的人才是重要的战略资源,直接关系到21世纪中国的面貌,决定着中国在世界中的地位、前途和命运。加强文科教育,适应了日益明显的自然科学、社会科学和人文学科交叉综合的趋势,有利于形成适应科学、工业和文化发展的思维方式和造就能够文理结合、综合创新的复合型人才。  相似文献   

一种确定化合物中原子氧化数的简便方法     

胡乔生 《赣南师范学院学报》1991,(Z1)

本文介绍了一种只需借助一张带有电负性数值的元素周期表,会写化合物的路易斯结构式。而不需其它任何人为规定,就可方便准确地确定出化合物中原子氧化数的方法。  相似文献   

加强党风廉政建设精心构建和谐校园   总被引：2，自引：0，他引：2  

胡燕 《黄冈职业技术学院学报》2005,7(4):7-9

党风廉政建设搞得好不好，是学院和谐与否的重要标志。加强党风廉政建设是构建和谐校园的应有之义，应努力搞好校园党风廉政建设，为和谐校园建设提供保障。  相似文献