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关键词： 化学检测   样品预处理技术   分析化学  

摘要： 样品前处理技术在分析化学中占有重要地位,对其相关技术的分析和研究对化学检测技术的发展有着重大的影响,它更多的是与化学检测密切相关。各种样品前处理的新技术和新方法已经成为当代分析化学的主要发展方向之一。

关键词： 分析化学   高效液相色谱法   1,5-环辛二烯氯化铱   纯度  

摘要： 建立了用高效液相色谱分析1,5-环辛二烯氯化铱纯度的方法。以C18色谱柱为固定相,以乙腈/水53/47 (V/V)溶液为流动相,检测波长为285 nm,可以获得满足1,5-环辛二烯氯化铱纯度测定要求的色谱图。在1,5-环辛二烯氯化铱浓度为0.224～0.336mg/mL时,线性相关系数(r)为0.9993,样品加标回收率为99.13%～101.37%,相对标准偏差为1.01%。

关键词： 项目教学法   分析化学实验   设计性实验  

摘要： 以分析化学实验中设计性实验"有机化合物未知液检验"为例,结合理论及实验教学内容,充分发挥学生的主体性,通过实验的方案设计、操作实践、给出结论和结果分析等具体步骤的实施,探讨了项目教学法在职业教育化学实验教学中的应用效果。结果表明:95.3%的同学接受项目教学法在有机化学基础实验教学中的运用,80%以上的同学认为项目教学法提高了学习兴趣、自学能力和独立思考的能力,对综合学习能力有帮助。因此,项目教学法体现了"以学生为主体,以教师为主导,以能力培养为目标"的教学理念。

关键词： 化学  

ISBN: (数字)9787030580788 ISBN: (纸本)9787030580788

摘要： 机及分析化学实验是一门独立的基础实验课程。本书是“十二五”普通高等教育本科国家级规划教材，是编者根据教学改革实践和教学发展需要，结合多年的教学实践而编写的。全书分7章共76个实验，内容包括：绪论、实验基本知识、基本操作与技能、基础实验、综合实验、设计实验、生物分析、微型化学实验。教材内容既有较广的适用性，又注重体现新技术、新方法，以培养和提高学生的创新精神和实践能力，使学生既能掌握经典的方法，又具备设计实验的能力。

关键词： Analytical Chemistry   Laboratory Instruction   Second-Year Undergraduate   Hands-On Learning/Manipulatives   Inquiry-Based/Discovery Learning   Interdisciplinary/Multidisciplinary   Kinetics   UV Vis Spectroscopy   Oxidation/Reduction   Quantitative Analysis  

摘要： New experiments for undergraduate students are needed to stimulate experiential learning in the laboratory while providing valuable training for future career development. Iodine deficiency remains a major public health concern that is monitored by measuring the median urinary iodide concentration of a population. In this context, we have introduced a kinetic spectrophotometric experiment based on the classic Sandell-Kolthoff reaction for second-year undergraduate students in analytical chemistry. This two-day laboratory experiment incorporates principles of quantitative chemical analysis, redox chemistry, reaction kinetics, optical spectroscopy, sample pretreatment, external calibration, method validation, statistical analysis, and quality assurance. Additionally, students gain real-world experience of implementation of a reliable analytical method used in global health initiatives to combat iodine deficiency, including participation in a round-robin study with the CDC. This colorimetric assay is widely used for continuous monitoring of mandatory iodized table salt programs to prevent the risk of iodine deficiency disorders, including developmental delays and intellectual impairment in children.

关键词： 3D printing   Additive manufacturing   Analytical chemistry   Bioanalytical chemistry   Sensors   Biosensors   Microfluidics   Analytical devices   Catalytic surfaces   3D-printed electrodes  

摘要： 3D printing has revolutionized the concept of object manufacturing, making an enormous impact on industry and economy. The technology has found a niche in countless fields, including scientific research. It has rendered practical solutions to scientific problems by offering tailored-shaped devices with exquisite control in design and geometry and through the versatility of printable materials. Applications in analytical and bioanalytical chemistry have been on the rise, with microfluidics being one of the most represented areas of 3D printing towards this chemistry branch. Most stages of the analytical workflow comprising sample collection, pre-treatment and readout, have been enabled by 3D-printed components. Sensor fabrication for detecting explosives and nerve agents, the construction of microfluidic platforms for pharmacokinetic profiling, bacterial separation and genotoxicity screening, the assembly of parts for an on-site equipment for nucleic acid-based detection, the manufacturing of an online device for in vivo detection of metabolites, represent just a few examples of how additive manufacturing technologies have aided the field of (bio)analytical chemistry. In this review, we summarize the most relevant trends of 3D printing applications in this field. (C) 2018 Published by Elsevier B.V.

关键词： 分析化学实验   教学改革   地方特色实验   开放实验室  

摘要： 就分析化学实验教学改革中,通过增加地方特色性实验、开放实验室,以及在分析化学实验教学中多种教学手段配合使用等方面对地方应用型本科高校转型背景下的分析化学实验教学进行了改革,收到了初步效果。