共查询到20条相似文献,搜索用时 109 毫秒
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随着科学技术的发展,科研和生产的进步日益依赖于分析测试技术,分析仪器越来越受到科研人员和生产技术人员的重视,其应用领域不断扩大。目前我国每年需花费大量外汇进口价格昂贵的精密分析仪器。根据我们的体会,进口仪器具有以下特点:(1)多数仪器在我国属于空白;(2)对技术和安装环境有较 相似文献
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林键 《理化检验(化学分册)》2004,40(1):22-24,26
通过对美国LECO公司400和600系列气体分析仪的研究对比,探讨了600系列仪器新技术的运用和改进。而从中也反映了当代分析仪器发展的总趋势。对气体分析仪器的使用者而言也起了推动深入研究其扩大应用和提高对仪器的维护保养水平的作用。 相似文献
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尽管尚缺确实统计数字,1980年全世界销售分析仪器估计约增加一成,即达约十七亿美元。这增加并不是因为引进新方法,而是像往年一样,是由于工业国增强了环境控制,因此增加了分析工作量。生产分析仪器的厂家也作了一些调整。其中一些厂家渐变为“供应公司,”不仅出售分析仪器,还兼供应这些仪器所需的特殊试剂和溶剂,主要是为生化分析和临床化验的单位服务。另一方面,有名的化学工厂也购进仪器厂或添加仪器发展部。在近年内分析仪器市场的结构可能发生较大的变化。 相似文献
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Qianying Sheng Wenqing Zhang Yan Wang Yi Zhao Haiyan Liu Junhong Qian Bo Zhang Qing Wang Ping Hu 《大学化学》2020,35(5):56-60
针对新型冠状病毒感染肺炎疫情对高校正常开学和课堂教学造成的影响,本校分析化学教研室积极响应教育部高等学校化学类专业教学指导委员会的倡议,快速筹备与构建了基于校内多层次信息化学习平台的在线慕课教学活动,以保障延期开学期间分析化学课程的教学安排,帮助与指导选课学生在疫情防控期间高效高质量地完成本课程的学习。本文从分析化学慕课课程的快速构建与特点,校内课程平台的学习及管理,微信群、QQ群及公共邮箱等辅助教学,以及学生的使用效果与学习诉求等几个方面进行探析,希望为提高分析化学的教学质量,探索新型教学方法提供数据支持,从而与学生一同完成课程的教学与学习,收获理想的成绩。 相似文献
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Taking the chapter of "errors and data processing" in analytical chemistry as an example, the teaching design, teaching practice and teaching efficiency of mind-mapping were explored. The derivation of the new knowledge point, the relation between the new and old knowledge points, their generalization and summarization were emphasized in the design of mind-mapping; the blackboard-writing and mixed-media complemented each other in the teaching practice, the guiding function of mind-mapping was highlighted; and students' logical thinking was practiced in homework. The teaching practice and questionnaire survey show that it is necessary to introduce mind-mapping to university classroom teaching. Mind-mapping can improve students' logical thinking, increase their "learning ability" and arouse their enthusiasm. The teaching effect is satisfying. 相似文献
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The reform of analytical chemistry laboratory teaching model was studied to implement personalized, interactive and intelligent analytical chemistry laboratory teaching, so that students learn to learn, explore, and innovate. Through intelligent teaching model, the efficiency of students' independent learning and the information literacy were enhanced, the dive for study was motivated, the excellence and achievement of teaching, as well as the participation and concentration of students were all effectively improved. 相似文献
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This paper expounds the importance of logical thinking in the teaching of analytical chemistry and shows the internal logical relationship of the knowledge of analytical chemistry. Based on the logical relationship, the teaching design of the main content of analytical chemistry is carried out. In teaching practice, twice as much can be accomplished with half the effort with deep thinking and effective use of the progressive logical relationship inside and between chapters, and focusing on combing the main line of knowledge points. Then, the teaching difficulty can be effectively reduced and the students' learning interest and the teaching effect can be improved. At the same time, the rigorous logical thinking ability and scientific research innovation consciousness of the students can be trained. 相似文献
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In this paper, based on learning situation of agricultural inorganic and analytical chemistry course, a questionnaire survey was conducted among some freshman students in related majors. The results show that the students have minimal interests in the study of this public basic course, lacking learning motivation and flexible study methods. Thus, they need training in learning methods. We also suggest the corresponding solutions to the existing problems above, and explore how to cultivate students' autonomous learning ability by choosing the corresponding teaching and learning modes. 相似文献
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The clinical case-guided teaching, to combine analytical chemistry contents with medical practice, could excite students' interest in learning, deepen concept understanding and improve the abilities of analysis, induction and synthesis, and then of applying professional knowledge to solve medical practical problems. Meanwhile, it helps students enhance their sense of responsibility, accept the idea of dialectics and the concept of self-access learning, and gradually develop the habit of lifelong learning. 相似文献