教学课程资源库 更多>>

关键词： 卓越工程师   中医药院校   药学专业   分析化学实验   教学体系   改革研究  

摘要： 在药学"卓越计划"的人才培养背景下,以药学卓越工程师培养为导向的药学人才培养目标下,针对当前中医药院校分析化学实验教学的现状以及在改革进程中所遇到的问题,结合中医药院校实验教学改革的实践经验,以江西中医药大学分析化学实验教学体系改革为研究对象,对中医药院校分析化学学科实验教学体系改革的理念与策略进行思考和探索,构建分层次递进的实体实验教学体系与虚拟仿真实验相结合的立体化分析化学实验创新教学体系,培养学生的科研思维能力和科研创新意识,实现面向世界、面向未来和面向现代化的卓越药学工程师的人才教育目标。

关键词： 项目教学法   工业分析   分析化学  

摘要： 从课程实施项目的确定、项目教学法实施准备、项目教学法实施过程、项目成果的提交与评价等方面对项目教学法在工业分析技术专业《分析化学》课程中的应用进行了探讨和研究。

关键词： 慕课   高校   分析化学   教学改革  

摘要： 分析化学是一门综合类学科,高校分析化学改革应当确定改革的终极目标是培养人才。在实施"慕课"教学变革的过程中,应当利用其优势,规避其劣势,将"慕课"的先进理念融合到分析化学人才培养的过程中本文对"慕课"的基本内涵进行简述的基础上,重点探讨了基于"慕课"的高校分析化学教学改革策略,并对"慕课"下的高校分析化学教学改革的注意点进行探讨。

关键词： 微波技术   分析化学   消解  

摘要： 微波消解仪的机理和特点,综述了微波消解仪在分析化学中的应用,展望了微波消解技术的前景,提出了微波消解仪在分析化学中的发展方向和建议。

关键词： 分析化学   化学分析   仪器分析  

摘要： 化学分析和仪器分析是分析化学教学工作中的两个重要内容,两者在分析化学中都具有重要的位置,学好这两方面的内容对于分析化学课程来讲是至关重要的。化学分析和仪器分析既有相同点,又存在不同,两者具有互相补充、互为表里的关系。因此,文章就分析化学中的化学分析、仪器分析进行简述,对二者的异同点以及在分析化学中的作用加以简要分析,最后就化学分析与仪器分析的发展趋势作简要论述。

关键词： Deep eutectic solvents   Ionic liquids   Green solvents   Analytical applications   Sample pretreatment  

摘要： Deep eutectic solvents (DESs), as a new type of green solvents, have recently been getting a great deal of interest in many areas of science and technology. In this minireview, we briefly discuss the analytical applications of DESs published during the past five years. We focus mainly on various DES-based (micro)extraction procedures. The applications of these techniques are summarized in the tables. (C) 2017 Elsevier B.V. All rights reserved.

关键词： Acetone  

摘要： In the present paper, the 3(3) Box-Behnken design with a triplicate central point was used to optimize the conditions for the ultrasound-assisted extraction of n-alkanes (C10-C40) and isoprenoids (phytane and pristane), which are petroleum biomarkers and their derivatives, in river sediment samples. The determination was carried out using a Gas Chromatographer/Mass Spectrometer (GC/MS). The factors studied in the Box-Behnken design were the proportion of n-hexane and acetone in the solvent mixture, the length of sonication time, and the volume of the solvent mixture. The optimized conditions were 10 minutes of sonication, 10 mL of the solvent mixture, and a n-hexane/acetone mixture composition of 25 : 75 (v/v). These conditions were validated by assessing the recovered percentage that was obtained in the studies for the spiked blank and the spiked sample. The linear range was from 1 to 10 mg L-1 and the Pearson correlations for all the compounds were above 0.995. The detection limit ranged from 1.97 to 19.01 dry weight and 6.57 to 63.37 ng g(-1) dry weight for the quantification limit. The mean recoveries of the spiked samples ranged from 55.47 to 110.40% and 61.00 to 115.21% for the spiked blanks. Sediment samples were analyzed and the concentration of n-alkanes ranged from 25.80 to 511.00 ng g(-1) based upon the dry weight.

关键词： Normal distribution  

摘要： The normal distribution, under its popular name `the bell curve', has attracted adverse criticism in recent years, owing mainly to being prominently featured in some well-publicised books on socio-economic topics. A number of conclusions in these fields, ranging from questionable to spectacularly incorrect, have been drawn from an ill-considered use of the bell curve as a statistical tool. Those application sectors do not directly impinge on chemical measurement but the toxic fallout has been widespread and likely to bias the reading public against inferences based on the normal distribution. It is therefore essential that analytical chemists should be able to recognise appropriate and inappropriate uses of the normal distribution and to defend their decisions adequately when working alongside those unfamiliar with measurement and statistics.