Abstract: This paper reports a simplified Broekhoff equation for calculating the pore size distribution from adsorption isotherms. The equation is as follows. Where For desorption branch of adsorption isotherms For adsorption branch of adsorption isotherms The results obtained from this equation agree with data from the Broekhoff equation calculated by a computer. The pore size distribution from the authors equation for adsorption branch agrees with that of the desorption branch. Due to this approximation simplified equation a minicomputer may be interfaced to a measuring instrument in use. The application range of the simplified equation is 10 A- 300A.

摘要： 本文对计算孔径分布的Broekhoff方程做了简化,得到一组近似方程,实例计算结果证明它和原方程等效.近似方程的优点在于能制成专用机与吸附仪联用,加快数据处理.近似方程的适用范围为:10(?)—300(?)