性状:称取本品40g,加入蒸馏水或去离子水1 L,搅拌加热煮沸至完全溶解,分装于带有小倒管的试管,121℃高压灭菌15min。(Suspend 40 g in 1 L of distilled or deionized water.Heat with frequent agitation and boil to completely dissolve the powder.Distribute into tubes containing an inverted Durhan tubute.Autoclave at 121℃ for 15 minutes. )