【答案】应助回帖

10楼: Originally posted by chaijudi at 2012-07-18 11:48:37
http://www.google.com.hk/#q=%E9%93%9C%E7%9A%84%E7%BB%9C%E5%90%88%E6%BB%B4%E5%AE%9A+%E6%A0%87%E5%AE%9A%E6%B3%95&hl=zh-CN&newwindow=1&safe=strict&prmd=imvns&ei=Zy8GUMH4J82ciAe2pemlC ...

13楼: Originally posted by chaijudi at 2012-07-19 07:55:09
那你就在pH=5.5的乙酸-乙酸钠缓冲中，以二甲酚橙为指示剂，用标准EDTA溶液标定就可以了！