用 _n 代替经验系数测定 N.S.SAS 含量

Substitute for Empirical Adsorbent to Determine the Content of Nonionic Synthetic Surface active Substances

提出用数均分子量（Ｍｎ）代替经验系数测定非离子型表面活性剂（Ｎ．Ｓ．ＳＡＳ）的含量，使测定值与实际含量一致．同时提出气相渗透法（ＶＰＯ法）测定Ｍｎ，方法简便、准确．

In this thesis the author raises an idea that M n can be used instead of Empirical Adsorbent to determine the content of synthetic nonionic surface active substances with the result that the measured value consists with the actual content. The author also raises the idea that we can use the method of vaper phase osmometry in determining M n. This method is simple,convenient and accurate.