【简答题】认真阅读《中国药典》中对乙酰氨基酚中硫酸盐的检查,并回答问题取本品2.0g,加水100ml,加热溶解后,冷却、滤过,取滤液25ml,依法检查,与标准硫酸钾溶液1.0ml(100μg/ ml SO4)制成的对照液比较,不得更浓。(1)标准硫酸钾溶液配制方法的出处?(2)取本品2.0g,其称量范围是多少?应选择何种规格(感量)的天平?
【简答题】Cloze test. Many students have hobbies, such as reading, painting, growing vegetables in their gardens, and looking after animals. Some hobbies are relaxing and 1 are creative. Hobbies can develop you...