本标准溶液以金属锰块在超净实验室中准确配制并分装于20毫升安瓿中。
This standard solution was accurately prepared in super-clean laboratory with spec-pure manganese metal granular and sub-packed in 20 ml ampoules.
本标准溶液以锰粒在超净实验室中准确配制并分装于20毫升安瓿中。
This standard solution was accurately prepared in super-clean laboratory with manganese metal granular and sub-packed in 20 ml ampoules.
应用推荐