first derivative ratio method 导数比率法

second derivative ratio method 导数比率法

zero-crossing derivative ratio method 过零导数比法

derivative ratio spectrum method 比值导数法

ratio derivative method 比值导数法

absorbance ratio derivative method 比值导数法

Derivative of ratio spectrum method 比值光谱一阶导数法

derivative of absorbance ratio method 吸光度比值导数光谱法

new absorbance ratio derivative method 吸光度比值导数光谱新方法