本文研究并建立了含有大量钡冰长石和1％天青石的多金属矿中重晶石的分析方法。用盐酸—硝酸溶解样品,蒸干.加入一定量的硫酸铵为保护剂.以盐酸—氯化铵溶解铅、锶、银的硫酸盐,过滤,洗涤。灼烧余渣,除尽硫磺.用碳酸钠在镍坩埚中半熔,水浸,过滤.在滤液中加入氯化钡,以硫酸钡重量法完成测定. This paper studies and establishes a method for the analysis of barite in polymetallic ores containing a large amount of barium vernalite and 1% celestite. With hydrochloric acid - nitric acid to dissolve the sample, evaporated to dryness.Add a certain amount of ammonium sulfate as a protective agent.Hydrochloric acid - ammonium chloride dissolved lead, strontium, silver sulfate, filtered and washed. Ignition residues, except sulfur, with sodium carbonate in the nickel crucible half-melting, flooding, filtered barium chloride was added to the filtrate to barium sulfate gravimetric determination.