When you use this ERM, please carefully break open the ampoule at the neck and pipette10 ml from the ampoule into 250 ml volumetric flask and bring to volume by 1% HNO3 solution.
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美
- 临用时割开安瓿,用10毫升干燥洁净移液管从安瓿中准确移取浓样10 毫升于250 毫升容量瓶中,用1%25硝酸定容。