测定酚类水样时应加( )作为水样保护剂。
A、HgCl[img=~/QImg/2013-10-14-10-14-34/image001.jpg]
B、HNO[img=~/QImg/2013-10-14-10-14-34/image003.jpg]
C、HCl
D、NaOH
发布时间:2023-07-24 20:40:25
A、HgCl[img=~/QImg/2013-10-14-10-14-34/image001.jpg]
B、HNO[img=~/QImg/2013-10-14-10-14-34/image003.jpg]
C、HCl
D、NaOH