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;

  • 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;

  • 互联网摘选 2025-01-20 19:08:54

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