氧化铝、催化剂、干燥剂及其载体等Ａｌ２Ｏ３多品种的孔容测定改进方法。过去使用ＣＣｌ４作吸附介质，有毒，操作人员会慢性中毒。并且去掉要冰的冷阱；现用乙醇吸附法，吸附剂无毒，而且可以循环使用。测试装置更为简单，结果重现性好，精度高。国内外有关专家和同行作过许多研究工作，认为该改进方法可以广泛推广应用于氧化铝生产和科研的测定中。 Alumina, catalysts, desiccants and their carriers and other Al2O3 multi-species determination of pore volume improvement. CCl4 used in the past as adsorption medium, toxic, the operator will be chronic poisoning. And remove the cold trap to be ice; now ethanol adsorption method, the adsorbent is non-toxic, and can be recycled. Test device is more simple, the result is good reproducibility, high precision. Many experts and colleagues at home and abroad have made many researches, and think that the improved method can be widely applied to the determination of alumina production and research.