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本文根据物质的磁化率具有加和性的原理，提出了用Ｆａｒａｄａｙ式磁天平测定稀土氧化物催化剂中Ｍｎ含量的方法，该法不需进行样品的分解和分离，具有快速简便，不破坏样品的优点。
Based on the principle that the magnetic susceptibility of the material has the additive property, a method of measuring the Mn content in the rare earth oxide catalyst by the Faraday type magnetic balance is proposed. The method does not need to decompose and separate the sample, and has the advantages of being quick and easy and not damaging the sample advantage.