DF: a value equal to the logarithm of the ratio of the incident light to the transmitted light and is dependent on the path length and the concentration of the absorbing substance
DF: a value equal to the logarithm of the ratio of the incident light to the transmitted light and is dependent on the path length and the concentration of the absorbing substance
DF: a value equal to the logarithm of the ratio of the incident light to the transmitted light and is dependent on the path length and the concentration of the absorbing substance