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在金属有机化学研究工作中,经常需要测定少量气体。例如,小分子活化的研究工作中,需要测定 N_2、H_2、O_2、CO 等的体积;C_1化学的研究中也需测定 CO、CH_4、C_2H_4、C_2H_6等:研究络合物结构时,络合物在酸解、碘解、热分解后,也有 CO、N_2、O_2、烃类等生成,这些少量气体用一般常压量管是较难测量的,特别是不稳定金属络合物与其他试剂的反应,往往在排出保护气体后,于负压下进行。反应后的体系仍处于负压状态时,测定更为困难.
In the metal organic chemistry research work, often need to measure a small amount of gas. For example, in the research work of small molecule activation, the volume of N 2, H 2, O 2, CO, etc. needs to be determined; CO, CH 4, C 2 H 4, C 2 H 6 and the like also need to be measured in the C 1 chemistry study: In the acid hydrolysis, iodineysis, thermal decomposition, but also CO, N_2, O_2, hydrocarbons, etc., these small amount of gas with normal pressure tube is more difficult to measure, especially the unstable metal complexes and other reagents Reaction, often after the discharge of protective gas, under negative pressure. After the reaction system is still under negative pressure, the determination is more difficult.