This standard solution was accurately prepared in super-clean laboratory with spec-pure cobalt sponge and sub-packed in 20 ml ampoules.
本标准溶液以金属钴海绵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 cobalt sponge and sub-packed in 20 ml ampoules.
本标准溶液以金属钴海绵在超净实验室中准确配制并分装于20毫升安瓿中。
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