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[主观题]
阿司匹林中检查游离水杨酸的方法为:取本品0.1g,加乙醇1ml溶解后,加水使成50ml,立即加新
配制的稀硫酸铁铵试液1ml,30s内如显色,与水杨酸对照液(0.1mg/ml)1ml同法制备溶液比较,颜色不得更深。其游离水杨酸的限量为()。
A.0.5%
B.0.05%
C.2.0%
D.0.01%
E.0.1%
查看答案
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A.0.5%
B.0.05%
C.2.0%
D.0.01%
E.0.1%
A.2.0ml
B.3.0ml
C.5.0ml
D.6.0ml
E.8.0Ml
A.0.001
B.0.002
C.0.01
D.0.02
E.0.005
A.1.0g
B.2.0g
C.4.0g
D.6.0g
E.8.0g
A.1%
B.0.2%
C.0.1%
D.0.01%
E.0.001%
A.0.0012
B.0.024
C.0.00012
D.0.0024
E.0.012
A.0.01%.
B.0.001%.
C.0.005%.
D.0.002%.
E.0.02%.
A.0.0003
B.0.0015
C.0.03
D.0.003
E.0.015
A.硫酸铁铵
B.硝酸银
C.溴化汞
D.硫代乙酰胺
E.1%冰醋酸甲醇
A.0.0005
B.0.0001
C.50ppm
D.10ppm
E.5ppm