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zhang123123

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[求助] FC-DNA检测问题

最近在做DNA传感器,我先在金电极表面上HS-DNA链,再上互补FC-DNA链,然后在pH7.4 NaClO4buffer(含Tris,NaCl,KCl,MgCl2)溶液中测DPV,DNA链也是用该buffer溶液配的,DNA杂交是在该buffer溶液,40℃,60min。发现没有FC信号(0.21mV),这是什么原因?有做过的虫子能相互交流下吗?急~~~!
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