| 查看: 606 | 回复: 1 | ||
| 本帖产生 1 个 翻译EPI ，点击这里进行查看 | ||
fengxing915木虫 (小有名气)
|
[求助]
帮忙翻一下，谢谢了
|
|
|
Coatings of Nafion on glassy carbon electrodes were prepared by transferring the desired volume of the 0.5 wt.% stock solution to the electrode and allowing the solvent to evaporate at room temperature. Nafion coatings on the gold-coated quartz crystals of the quartz crystal microbalance were prepared by a previously described spin-coating procedure using a 2.5 wt.% stock solution of Nafion containing 10% H20 . Spectrophotometric or atomic absorption analyses of Nafion coatings containing Cu(bpy) were carried out with coatings that had been deposited on a platinum flag electrode from which they could be dissolved by sonication for a few minutes in DMF at room temperature. The resulting solutions were analyzed by UV and atomic absorption spectrophotometry using calibration curves pre- pared from standard solutions of Cu(bpy) in DMF. The UV absorption was measured at 284 nm where the bpy ligand is strongly absorbing. Analysis of the same solutions for Cu by atomic absorption provided the calibration data needed to relate the absorption at 284 nm to the concentration of Cu in the solution. [ Last edited by fengxing915 on 2011-11-21 at 16:38 ] |
回复此楼» 猜你喜欢
欢迎发来filecode的Mz6后的代码验证其规律
已经有123人回复
-
今天基金会出结果吗？20260819
已经有13人回复
-
时间戳变了，能看出什么问题？
已经有16人回复
-
filecode，4个jtjc了
已经有13人回复
-
为什么余额宝的年化利率越来越低？主要原因有哪些？
已经有5人回复
-
今天放榜没戏了吧
已经有5人回复
-
今天放榜吗？
已经有15人回复
-
filecode=后面第一个是大写字母
已经有12人回复
-
2027广东省杰青
已经有10人回复
-
朋友圈看到的
已经有8人回复
xiaohanhan2007 
捐助贵宾 (小有名气)
- 翻译EPI: 38
- 应助: 0 (幼儿园)
- 金币: 1171.6
- 散金: 1071
- 红花: 1
- 帖子: 218
- 在线: 607小时
- 虫号: 477343
- 注册: 2007-12-13
- 专业: 配位化学
【答案】应助回帖
★
爱与雨下(金币+1): 2011-11-21 20:30:22
fengxing915(金币+5, 翻译EPI+1): 翻得太好了，哈哈，谢谢了啊。。。。 2011-11-23 10:43:23
爱与雨下(金币+1): 2011-11-21 20:30:22
fengxing915(金币+5, 翻译EPI+1): 翻得太好了，哈哈，谢谢了啊。。。。 2011-11-23 10:43:23
希望能帮助到楼主： Nafion膜电极的制备方法是将0.5 wt%所需体积的储备液转移到玻碳电极上，并在室温下等待溶剂蒸发。石英微天平上的金涂层石英晶体通过以前所述的旋涂法制备，使用的溶液是含有10%水的2.5 wt%Nafion储备液。Nafion涂层中的Cu(bpy)含量通过分光光度法或者原子吸收光谱测定，首先将沉积在铂电极表面的涂层置于DMF中，在室温下超声几分钟后溶解。将所得到的溶液通过紫外和原子吸收光谱和Cu(bpy)的DMF标准溶液测得的校准曲线加以分析。bpy配体在284 nm处的紫外吸收非常强。而同一溶液中的Cu的浓度可使用原子吸收光谱测定，测定过程中的校准数据需要与284nm处的紫外吸收数据相关。 |
2楼2011-11-21 19:21:55
