作者根据测定活泼氢的方法,在仪器及操作程序上加以改进,使这个方法能够同时用来测定CH_3MgI试剂的加成。本文详细地描述了这一改进方法并且给出几个测定的结果。与Kohler方法相较,这个方法虽然准确度稍差一些,但所用玻璃仪器易於吹制,操作程序也比较简便。 According to the method of measuring active hydrogen, the author improved the instrument and operating procedure so that this method can be used to determine the addition of CH_3MgI reagent at the same time. This article describes this improved method in detail and gives the results of several assays. Compared with the Kohler method, although the accuracy of this method is somewhat less, the glass instrument used is easy to blow and the operation procedure is relatively simple.