一、红外光谱的基团频率 group frequency in IR 二、分子结构与吸收峰 molecular structure and absorption peaks 三、影响峰位移的因素 factors influenced peak shift 四、不饱和度 degree of unsaturation
一、概述 generalization 二、原子发射光谱的产生 formation of atomic emission spectra 三、谱线强度 spectrum line intensity 四、谱线自吸与自蚀 self-absorption and selp reversal of spectrum line
一、数-模转换(DAC)与计算机控制技术analog-digital converter(ADC) and technology of computer control 二、数据采集技术与模-数转换器(ADC)data collect and digital -analog converter and
Foreword Within the physical sciences, analytical chemistry has probably undergone the most dramatic expansion and development during the past few decades. Consequently, the number of analytical techniques, their degree of sophistication and areas of application have increased tremendously. This poses a problem for the chemical educator: what to include in an undergraduate course and at which level?