【判断题】【消耗次数：1】
酸性染料法测定生物碱，加入邻苯二甲酸氢钾控制水相PH值。
①
正确
②
错误
参考答案：
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相关题目
【单选题】
关于生物碱的理化性质，下列说法错误的是
①
大多生物碱难溶于水，易溶于氯仿、乙醚等有机溶剂
②
与酸结合后水溶性增加
③
季铵型生物碱易溶于水
④
有氧配位键的生物碱不溶于水
⑤
有些液体生物碱既可以溶于水也可溶于有机溶剂
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