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pcl

银虫 (小有名气)

[交流] 【求助】[求助] 关于戊二醛的问题

大家帮忙看看这个方法的原理是什么, 最后为什么要加戊二醛呢

Fe3O4 nanoparticles (0.2 g) were washed with 99.5% ethanol twice and dispersed in a solution with 30 ml paraffin and 0.5 ml span-80, then 15.0 ml solution of CTS in acetic acid with concentration of 2% was added. The suspension was mixed by ultrasonic irradiation for 30 min. The suspension was then transferred into a three-necked flask with a mechanical stirrer after adding 3ml 25% glutaraldehyde solution.

谢谢了
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pcl

银虫 (小有名气)

这个我也知道,壳聚糖可以在四氧化三铁表面通过微入夜法形成了,为什么之后还要加戊二醛呢
5楼2009-05-11 14:00:31
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refnew

专家顾问 (知名作家)



pcl(金币+1,VIP+0):是壳聚糖,为什么是必须的呢 5-11 10:30
如果CTS是chitosan的话,加戊二醛是必须的了
2楼2009-05-11 10:17:42
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pcl

银虫 (小有名气)

是壳聚糖,为什么呢,能说得具体点吗
3楼2009-05-11 10:31:23
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963147963

金虫 (正式写手)

戊二醛做交联剂,醛基可以与氨基发生缩合。
4楼2009-05-11 11:43:40
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