元素分析实验中的碳和氢鉴定装置的改进

The Improvement of Carbon and Hydrogen Test Apparatus in Organic Element Analysis Experiment

对有机物元素分析实验中碳和氢鉴定装置做了两方面改进：一是用铝箔包裹试样，使鉴定过程中产生的碳化物不附着（或少附着）在试管里；二是增加无水硫酸铜检验水和缓冲二氧化碳气流的装置．结果使实验损耗减小，时间缩短，现象更明显．

Two improvements of carbon and hydrogen in organic element analysis experiment are discussed: one is to wrap sample with aluminium foil to make carbon in the process of test not attackable to the test; the other is to add the test of water CuSO4 buffer the airstream of CO2 aparatus which shortens the test time, deceases the assumption of test tube, makes the obervations clearer.