| 查看: 1670 | 回复: 8 | ||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | ||
[求助]
这个怎么成球的，真心没搞懂，请教各位呀~
|
||
| 这个怎么成球的，真心没搞懂原理，是怎么作用的，请教各位呀~ |
回复此楼» 猜你喜欢
国自然面上和省基金B类撒花
已经有15人回复
-
有没有学校收留
已经有3人回复
-
312求调剂
已经有3人回复
-
华师大读博
已经有5人回复
-
又一批高校组建人工智能学院 师资行吗 不是骗人吗
已经有5人回复
-
急需审稿人！！！
已经有3人回复
-
申博/考博
已经有8人回复
-
295分求调剂
已经有6人回复
-
085600材料与化工调剂
已经有6人回复
-
有没有接收比较快的sci期刊呀，最好在一个月之内的，研三孩子求毕业
已经有7人回复
» 本主题相关价值贴推荐，对您同样有帮助:
- 请教各位前辈，CSC申请欧洲读博，流程是什么，本人新手时间太紧，真心求教
已经有8人回复
- 请教下.*是什么运算，看程序看到个D=2.*X1-X2这样的算式没搞懂
已经有8人回复
- 真心请教上海环科院怎么样？
已经有11人回复
- 【求助】有机化学有什么考试及学习经验没，今年考的不好，真心请教
已经有99人回复
- 【原创】真心请教：收到老板的秘书的email，是不是决定要我了？
已经有40人回复
4楼2012-06-26 20:55:40
|
看到篇文献 是用[C4mim]Cl 这种离子液体溶解纤维素的，这怎么成bead的呢？ A solution of approximately 10 wt % microcrystalline cellulose (4.8 g) in [C4mim]Cl (50.0 g) was prepared using microwave pulse heating.9 The solution was cooled to 60 °C, and 1.0 g of bovine serum albumin (BSA) was added and homogenized to prepare a mixture containing 1:5 wt % ratio of BSA:cellulose. The material was formed into beads by dispersing the solution in a rapidly stirring hot (100 °C) poly(propylene glycol) (PPG 425; Fluka, Buchs SG, Switzerland) bath using an overhead ultrahigh-torque stirrer (Caframo Limited, Wiarton, Ontario) set at 850 rpm. The [C4mim]Cl/cellulose/BSA mixture was slowly added to the stirring, hot PPG and dispersed to form small beads. During stirring (30 min), the temperature of the PPG bath was allowed to fall to approximately 40 °C, facilitating a hardening (reconstitution) of the outer surface of the [C4- mim]Cl/cellulose/BSA beads, preventing subsequent agglomeration. The solution was removed from the stirrer, and EtOH was slowly added to further reconstitute the beads and wash the remaining PPG from the material. The beads were washed five times with EtOH followed by five washings with DI H2O and then filtered using a set of mesh filters. |
2楼2012-06-25 17:35:21
snowrabbit
铁杆木虫 (小有名气)
- 应助: 8 (幼儿园)
- 金币: 7689.6
- 红花: 2
- 帖子: 131
- 在线: 135.6小时
- 虫号: 600105
- 注册: 2008-09-12
- 专业: 有机化学
3楼2012-06-26 08:36:41
snowrabbit
铁杆木虫 (小有名气)
- 应助: 8 (幼儿园)
- 金币: 7689.6
- 红花: 2
- 帖子: 131
- 在线: 135.6小时
- 虫号: 600105
- 注册: 2008-09-12
- 专业: 有机化学
5楼2012-06-27 08:31:15
5