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oyherb

铁虫 (初入文坛)

[求助] 求助:RP-HPLC分离盐酸小檗碱,流动相中加磷酸 已有2人参与

求助:RP-HPLC分离盐酸小檗碱,流动相中加磷酸,原理是什么?审稿人问的。不知道该怎么回答
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gzy1110

新虫 (小有名气)

【答案】应助回帖

★
感谢参与,应助指数 +1
辣笔v小新: 金币+1, 鼓励应助 2014-03-21 19:51:03
碱性物质在RP-HPLC中容易拖尾,峰形不好,加入酸性物质可以改善峰形和理论塔板数。不知道是否全面,请其他人补充啊。
2楼2014-03-21 14:41:41
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jessiejzx

木虫 (正式写手)

【答案】应助回帖

加入磷酸盐可以有效的改善峰形,提高分离效率,甚至保留时间都会改变,根据不同化合物的性质不同而定。
淡泊以明志,宁静以致远
3楼2014-03-24 13:49:50
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