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qzhaoxia

铜虫 (小有名气)

[交流] 【请教】zeta potential测量 已有3人参与

The zeta potential of my sample should be around zero(the surface of my sample is supposed to be neutral or slightly positively charged), however, the measurement result I got is about -30mV, which is too much off. I repeated the measurement, but the result was similar. Since I'm not so experienced in measuring zeta potential, does anyone can do me a favor by providing possible explanations? Thanks very much!
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liudb

木虫 (著名写手)

qzhaoxia(金币+1):Thanks very much! 2010-10-05 05:05:39
The 2ed flour is riight, zeta potentials are highly dependant on the pH value of solution in whiich your materials are dispersed.
谦虚、谨慎、得体
3楼2010-10-02 23:15:18
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