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求助

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Answered (Verified) This post has 1 verified answer | 2 Replies | 2 Followers

Top 500 Contributor
2 Posts
Points 24
焦放 posted on Wed, May 16 2012 2:36 AM

请问在做液相时，用SNL-10或Scanasyst-fluid的针，液体介质是0.01m/l硫酸，调好光路之后，VERT老是不稳定，该怎么办？

  • | Post Points: 14

Answered (Verified) Verified Answer

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Answered (Verified) Hao Sun replied on Mon, May 21 2012 2:52 AM
Verified by Hao Sun

用带有镀层的比较软的针做液体实验时，这种现象比较明显，主要是因为温度没有完全恒定，导致探针本身热胀冷缩，但因为探针有镀层，镀层和探针材料的热膨胀系数不同，在温度变化时，探针自身会发生弯曲。做此类实验务必保持探针上温度恒定。

  • | Post Points: 11

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Ang Li replied on Sat, May 19 2012 11:36 PM

用的什么系统？水介质中用这种现象么？

  • | Post Points: 10
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Answered (Verified) Hao Sun replied on Mon, May 21 2012 2:52 AM
Verified by Hao Sun

用带有镀层的比较软的针做液体实验时，这种现象比较明显，主要是因为温度没有完全恒定，导致探针本身热胀冷缩，但因为探针有镀层，镀层和探针材料的热膨胀系数不同，在温度变化时，探针自身会发生弯曲。做此类实验务必保持探针上温度恒定。

  • | Post Points: 11
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