The high-purity MPC standard sample was obtained by reduced pressure distillation and the removal of minor phenol with dilute sodium hydroxide solution.
反应产物经减压精馏、碱洗、水洗、干燥等精制处理，得到了纯度较高的M PC标准品。
This standard solution was accurately prepared in super-clean laboratory with pre-standardized phenol and sub-packed in 20 ml ampoules.
本标准溶液以苯酚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 pre-standardized phenol and sub-packed in 20 ml ampoules.
本标准溶液以苯酚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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