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lglssip

木虫 (正式写手)

[求助] 糖分析 已有1人参与

有没有做过多糖水解分析的,跑单糖标样时,跑出俩大峰,峰高差不多,不是纯度问题,纯度绝对保证,是左右旋的问题吗?是不是单糖都有这个现象?再就是溶解标样时,往里面加了点甲酸,峰面积明显比不加酸时小,小很多,原因是啥?单糖应该很稳定的吧!低聚糖都有哪些呀?
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普思生物

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中药对照品,天然产物分离纯化


【答案】应助回帖

感谢参与,应助指数 +1
之前做单糖的检测也遇到楼主同样的情况,出现双峰不只是酸度有影响,柱温影响也很大,之前考虑会不会是单糖环状构型翻转导致?
2楼2016-08-11 21:07:07
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