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airconditioner

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2Â¥2008-03-06 08:12:46
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dnp

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What would Jesus do?
3Â¥2008-03-06 11:57:17
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yuxiaolin

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Actually, it is difficult to determine the range 1640-1650 cm-1. It can be attributed from random,  intermolecular b-sheet interaction. One advice is that adding some detergent in your sample to decrease the intermolecular interaction, especially the hydrogen bond. Then run IR and fit the peak. If there is a shift for 1640 or 1650. It supposed to be  intermolecular b-sheet interaction, otherwise, it is random vibration of amide.
4Â¥2008-03-11 00:00:01
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ramanlxh

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