浅谈我区高校分析化学教学中多媒体的应用

根据我区大学生的实际情况，以及多年来在分析化学教学中的实践经验，通过分析传统教学与多媒体在分析化学教学中的应用，阐述了分析化学教学过程中应用多媒体的优势及需要注意的问题，提出了我区高校分析化学教学中利用多媒体教学与传统教学相结合的必要性。     

信息时代新形势下的大学教师角色认知探讨——以分析化学教学为例

信息技术的发展给高等教育带来了冲击,对大学教师的角色定位提出了新的要求。文章以大学本科的分析化学教学为例,通过分析信息时代新形势下师生关系的转变,提出了教师要由学习的主导者转变为学习的组织者和管理者,坚持让学生成为学习主体的教育理念,而强化教师的激励、启发、引导、监督功能。最后,探讨了在信息化时代如何充分发挥大学教师新的教学潜质,以适应新的教学需求。     

一类新的化学发光反应的研究

报道了酸性过氧化氢在一些金属离子存在时与碱溶液发生的化学发光反应.对影响化学发光的因素以及金属离子的作用进行了试验和讨论.     

表面活性剂在化学发光反应中的作用

数种表面活性剂对鲁米诺-H_2O_2-Fe~(3+),光泽精H:O。AllO和2,9一二甲基一1,IG菲咯琳一H:O。-Cu’”三种化学发光反应的影响情况进行了试验研究,对表面活性剂在化学发光反应中的作用及机理进行了初步讨论.     

Interferences in clinical chemistry analysis

Analyses of body fluids in clinical chemistry laboratory are subject to a number of interferences that affect the analytical accuracy. The interferents arise from exogenous sources like drugs and additives as well as such endogenous sources like lipemia, hemolysis and icteria. Our studies demonstrate matrix interference in the form of analytical blas between serum and aqueous matrix calibrators. The clinical chemist should constantly be aware of this factor. Correction of interferences is recommended as an integral part of the quality assurance program.     

人血清中微量铜的化学发光法测定

基于Cu~(2+)对鲁米诺-MnO_4~-化学发光反应的抑制作用建立了血清铜含量的化学发光分析法.测定铜(Ⅰ)的检出限为8.6×10~(-9)/ml,线性范围为1.0×10~(-8)～2.0×10~(-6)g/ml;对含1.0×10~(-7)g/ml cu~(+2)的水溶液进行10次重复测定,其结果的变异系数为4.3％.将本法应用于人血清中铜含量的测定,结果满意。     

Gold chemistry today

Recent extensions in the applications of gold have stimulated research in gold chemistry. New oxidation states of gold have been discovered and whole new classes of gold compounds prepared and studied. This article reviews some of these advances, though many have been omitted either through lack of space or because they are difficult to describe in non-technical terms.     

Forensic chemistry in 19th-century Britain

Poison has long been a common murder weapon, but in early nineteenth-century Britain toxic substances were readily available and little attention was paid to toxicology. In 1820 the use of poisonous substances in food manufacture was exposed and it was also realized that medical jurisprudence, including toxicology, was already well advanced in some European countries. Better training in these subjects for British doctors was begun, led by three prominent physicians, Robert Christison, Alfred Taylor and Thomas Stevenson. The professions of analytical chemist and Public Analyst were enhanced and the importance of chemical evidence in poison trials was established.     

TTA氧化发光反应的研究及应用

本文研究了TTA-H_2O_2-ClO~-新体系的化学发光行为,对影响化学发光强度的诸因素进行了实验和讨论,还探讨了该化学发光反应的分析应用.