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镝铁合金中稀土总量的测定采用草酸盐重量法,以盐酸溶解,用过氧化氢氧化二价铁,在pH1.5~2.0条件下用草酸沉淀稀土分离铁,沉淀经高温灼烧后生成稀土氧化物,称量测定稀土总量。
The determination of the total rare earths in the dysprosium-iron alloy adopts the oxalate gravimetric method to dissolve with hydrochloric acid and oxidize the ferrous iron with hydrogen peroxide to separate the iron from the rare earth by oxalic acid under the condition of pH 1.5-2.0, Rare Earth Oxides, Weigh the total amount of rare earth.