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[求助] 钙离子电极读数不稳

为何钙离子电极在测量过程中,电压数值总是变化的,在清洗电位时也是变化的,做标准曲线测量纯氯化钙溶液时也是变化的,求各路大神帮忙解决,在线等。谢谢!参比电极为232型。

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zdz2010

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最近也在用钙离子电极,自己接在pH计上的,参比电极也是232型,发现电位值受待测溶液的pH影响很大,好纠结呀。做CaCl2的标线,浓度梯度之间的电位值相差好小。pH范围应该多少比较合适
2楼2016-06-24 11:13:37
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