低参与程度层级结构
low-involvement hierarchy
吸光度比值－导数光谱法
Absorbance ratio-derivative mothed
吸光度差
optical density difference
吸光度比差测量法
Measurement of absorbance ratio difference
吸光度差值法
Absorbance difference method
吸光度导数光谱
derivative absorption spectrum
吸光度分析
Spectrophotometric analysis
吸光度负值
Digital spectrophotometer
吸光度下降速率
descend rate of absorbency