積分球式濁度計によるコロイド系の研究(第2報) : 着色系の濁度について

抄録

The quantity T, measured by a turbidimeter with an integrating sphere, decreases slightly as absorption increases in a colored turbid system. In order to estimate the turbidity τ, the following expression between T and optical density D_T or D was derived by a theoretical consideration and was supported by a theoretical calculation where the Rayleigh equation is applicable.[numerical formula] where D_T is the optical density obtained from the ratio of the total quantity of transmitted light and the diffuse transmitted light, T_t and T_d, respectively, according to the equation : [numerical formula] and the D obtained from ordinary method. This relation was supported by an experiment for the solution containing polymer latex and Methyl Orange, and the values of p and q were determined. The parameter q thus determined was almost constant, even though the kind of latex used and its concentration were different, but p depended upon the both. It was concluded that when a certain colored turbid solution is given, turbidity of this solution can be obtained from the measurement of T and D_T or D, if the parameters p and q were determined beforehand for this turbid system.