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    [热点] 计算机、0854电子信息（085401-058412）调剂 b90tbv 2026-01-19 刚刚
    [转载] 化学常见术语英文说法 (评阅+1) (4/1080) chinajinlei 2006-10-14 2007-04-11 22:46:25 by wanggenghao1985
    水吸收CO2的有关问题 (4/414) davy-712 2007-04-04 2007-04-11 22:32:58 by davy-712
    equiv在这里是什么意思？ (4/608) njusnoopy 2007-04-09 2007-04-11 22:29:36 by wanggenghao1985
    国内外生物柴油发展的现状 (评阅+2) (6/1018) eyht 2006-11-20 2007-04-11 22:14:15 by wanggenghao1985
    经常接触 硼氢化钾或 硼氢化钠的请进 (3/514) enger7012 2007-04-11 2007-04-11 22:10:44 by wanggenghao1985
    请教关于硫代硫酸钠溶液稳定性？急！ (1/195) venture 2007-04-11 2007-04-11 21:06:50 by wingtide
    7-oct-1-enyltrichlorosilane 请教此有机物是何物、分子式？ (评阅-3) (2/174) xiaoqiao7753 2007-04-10 2007-04-11 20:14:26 by xiaoqiao7753
    生物柴油的看法    ( 1 2 ) (评阅+1) (11/1041) zuiweng2003 2007-01-20 2007-04-11 19:24:02 by terry3262001
    油状物怎么分离？ (1/166) zhshm0047 2007-04-08 2007-04-11 16:17:07 by pkuchemistry
    菜鸟问题！我想建立柱层析分离产物，都需要哪些东东！ (4/308) qugm110 2007-04-10 2007-04-11 16:02:21 by pkuchemistry
    求助！羟丙基纤维素的取代度与分子量关系？ (1/324) zrqwl 2007-04-10 2007-04-11 12:35:15 by wingtide
    离子液体溶于磷酸缓冲溶液中会有白色盐状物析出是怎么回事啊？ (1/117) huxiaoyan2128 2007-04-10 2007-04-11 11:03:24 by husnow
    请问大虾用荧光光度计如何寻峰(如果文献查不到激发和发射波长) (2/74) qingting2007 2007-04-10 2007-04-11 09:34:56 by wf3786621
    怎样在氨基和羧基上分别接上巯基 (3/504) zrqwl 2007-04-08 2007-04-10 23:30:36 by zrqwl
    什么是电子等排体? (6/1167) shalake 2007-04-10 2007-04-10 23:10:55 by wanggenghao1985
    [经验交流] 总结一下前人关于减压蒸馏的经验！    ( 1 2 ) (评阅+3) (16/2406) aska928 2006-07-25 2007-04-10 23:05:03 by wanggenghao1985
    EDCl是什么呀？帮帮忙 (3/2608) wuwuwujz 2007-04-10 2007-04-10 15:57:54 by sccgy
    各位大虾，如何用HPLC分离甲苯二甲苯？ (1/218) enhuismart 2007-04-09 2007-04-10 14:28:11 by linweiguo0
    如果实验室有个医药箱，你觉得里面该有些什么东西 (评阅+3) (5/589) uhlan 2007-04-09 2007-04-10 11:27:43 by wf3786621
    大家知道玻璃瓶用什么样的橡胶塞能密封住吗？ (3/1067) yating 2007-04-09 2007-04-10 00:04:58 by magicpopo
    化学辩论赛 赛讯，希望大家勇于参加！ (评阅+3) (4/459) fdqlovejm 2007-04-09 2007-04-09 21:13:41 by fdqlovejm
    求助 间氨基苯甲酸怎么纯化 (2/87) 学员naOMb9 2007-04-07 2007-04-09 18:41:43 by zhaizw2005
    请教过柱收不到产物问题 (5/345) cainichen 2007-04-07 2007-04-09 15:18:08 by cainichen
    [经验交流] [关贴]ACScommunication中文章的supporting information 哪里能够找？ (2/127) 橙C 2007-04-09 2007-04-09 14:00:58 by 橙C
    Color: An Introduction to Practice and Principles    ( 1 2 ) (+13.5) (金币≥20)(16/215) gongxd325 2006-10-07 2007-04-09 11:55:19 by harvard
    求助：light petroleum(b.p.100-120°)是什么？ (1/67) huaxue19820724 2007-04-08 2007-04-08 22:38:26 by biezhi
    请问一水氢氧化锂失水温度是多少呀？ (2/363) aikesea 2007-04-08 2007-04-08 17:15:42 by aikesea
    ？一个化合物的翻译？ (1/120) cxfdeardog 2007-04-08 2007-04-08 12:32:03 by yalefield
    为什么我的L-半胱氨酸不溶呢 (3/1222) mazy1982 2007-04-05 2007-04-08 11:41:22 by mazy1982
    终于知道氢氧化钠的厉害了！！！ (评阅+1) (4/969) enger7012 2007-04-07 2007-04-08 10:12:10 by zyy816
    求助：vilsmeier试剂的制备 (1/122) dahua 2007-04-07 2007-04-08 08:53:58 by zbluo
    [求助]非均相反应如何优化反应条件 (2/98) redfoxwenfan 2007-04-07 2007-04-08 08:49:25 by xin8334
    [经验交流] CCDC2007年升级包    ( 1 2 ) (评阅+2) (金币≥1)(11/253) ylsycxm 2007-03-15 2007-04-07 17:01:51 by zsychem
    请教高手如何脱除空气中SO2而不脱除H2S (评阅+1) (5/495) cuiyanqing 2007-04-01 2007-04-06 19:33:32 by xx小小xx
    [实验技术] [关贴]推荐给化学专区朋友一个网站    ( 1 2 ) (金币≥1)(15/209) renchunxiao 2007-01-01 2007-04-06 15:44:45 by zhujinna
    溴化氢气体如何制备 (7/1083) skywalkerelf 2007-04-05 2007-04-06 15:08:57 by skywalkerelf
    [实验技术] 关于多聚甲醛溶解性的问题 (2/271) hkdfp 2007-04-06 2007-04-06 09:20:39 by sccgy
    缓冲溶液配制时为何加入叠氮化钠 (1/249) phyorgchem 2007-04-05 2007-04-06 06:59:24 by protein123
    [实验技术] [分享]常用溶剂介电常数和极性表 (评阅+2) (2/529) wukegui 2007-04-05 2007-04-05 22:01:24 by 小红豆
    怎么除去有机酸里面的硫酸？ 5 (金币≥3)(8/123) dollyyang 2007-03-30 2007-04-05 21:24:20 by dollyyang
    [经验交流] 搞研究过程中不可缺少的几本本子    ( 1 2 3 4 5 6 ) (评阅+2) (金币≥2)(54/1369) vechov 2006-09-25 2007-04-05 21:10:23 by qingfeng2008
    投票:  [关贴]征求广大虫友意见－化学区版规［2007年版］修改意见草案    ( 1 2 ) (评阅+5) (11/1509) berlin 2007-03-03 2007-04-05 19:30:52 by 小红豆
    砂芯漏斗怎么清洗？ (8/1656) xiaoda1984 2007-04-04 2007-04-05 15:12:13 by xiaoda1984
    求教氨水和三乙胺的 碱性那个强? (1/624) ::::: 2007-04-04 2007-04-05 10:27:29 by bamboo_111
    请教一个光学纯度的问题 (1/83) jianhua007 2007-04-04 2007-04-05 10:27:06 by bamboo_111
    化工废料的回收前景如何？ (4/384) xingpgkl 2007-04-04 2007-04-05 09:52:25 by xingpgkl
    丙烯酸常用浓度是? (1/66) xhl-8201 2007-04-04 2007-04-04 23:05:25 by montyjh
    判断离子液体反应终点的新方法 (评阅+1) (5/339) jiasuper 2007-04-04 2007-04-04 19:11:12 by jiasuper
    化学新宠——离子液体    ( 1 2 ) (+3) (评阅-1) (16/1922) cepha 2006-02-22 2007-04-04 19:09:33 by wjk0326
    什么样的有机物能与金属镁表面或者氧化镁的表面发生化学键合 (1/189) xiaoqiao7753 2007-04-04 2007-04-04 18:06:26 by stirring
    请教有关硝酸钴的问题 (1/68) wangyuelun 2007-04-04 2007-04-04 17:44:55 by bamboo_111
    【转贴】常见的危险化学品及有毒有害物质的基本信息和防护措施【已搜索无重复】 (评阅+2) (1/165) flowerstudy 2007-04-04 2007-04-04 17:18:31 by 小红豆
    请教多聚磷酸的使用 (3/907) yaoyao06 2007-03-17 2007-04-04 15:57:33 by huanghong5134
    实验室试剂配置大全(已搜索,无重复) (评阅+3) (3/1102) 白鲨无奈 2007-03-24 2007-04-04 14:09:46 by 白鲨无奈
    请教:关于苯环上的卤原子被氨基取代的问题 (6/995) qingquan837 2007-04-02 2007-04-04 13:54:44 by stirring
    关于氯苯水溶液的配制 (2/52) zqs-hbsy 2007-04-04 2007-04-04 12:40:07 by zqs-hbsy
    请问草酸溶液的常用浓度是多少？谢谢 (1/106) jchwang 2007-04-03 2007-04-04 10:43:27 by wf3786621
    请问哪里可以买到纳米四氧化三铁粉末 (2/70) simplesoul 2007-04-03 2007-04-04 10:14:42 by chwell2004
    请问：胶体的问题 (1/85) chunyubai 2007-04-03 2007-04-04 01:38:06 by magicpopo
    卟啉酸化后呈绿色是怎么回事？ (1/178) ukandy 2007-04-03 2007-04-03 23:29:42 by biezhi
    有一大环化合物咔喏，不很纯，我想问问怎么用柱色铺提纯 (2/68) xhl-8201 2007-04-02 2007-04-03 23:21:28 by biezhi
    水玻璃调模的问题？ (2/237) yinwensyl 2007-03-30 2007-04-03 21:30:05 by yinwensyl
    [实验技术] MSN上的化学社区 (评阅+2) (7/638) Plain 2006-06-01 2007-04-03 17:15:10 by zwk4250
    求助--未知物鉴定 (4/279) platomzb 2007-04-02 2007-04-03 11:56:38 by liw408
    Topics In Chemistry Collection (4/266) guojjun 2007-04-03 2007-04-03 11:47:27 by skyflyzw
    请教四丁基氟化铵纯化 (3/439) vutzisen 2007-01-17 2007-04-03 10:30:15 by fjxmxdkj
    如何制取α-溴代苯乙酮(只取代一个氢) 2 (2/236) Dirac123 2007-04-03 2007-04-03 10:20:12 by hydialog
    [实验技术] 常见阻聚剂 1 (评阅+2) (金币≥2)(3/258) rengui_1 2007-03-30 2007-04-03 09:52:46 by guangjiegao
    一个可以查分子量及等电点的网站－只是蛋白质类 (评阅+1) (1/276) liujh2008 2007-04-01 2007-04-03 07:39:00 by chen_shaoyun
    有做热化学的吗？请教如何测反应热？ 1 (2/74) cetacean 2007-04-02 2007-04-02 20:00:47 by cetacean
    [经验交流] 高压气瓶安全（自己的经验） (评阅+2) (1/200) luozuowen123 2006-11-29 2007-04-02 17:19:48 by 小红豆
    精华I:  讨论：当实验进行不下去时怎么办？    ( 1 2 3 4 ) (+7) (评阅+2) (33/3897) eyetion 2005-12-30 2007-04-02 17:03:30 by lzy0539
    中图分类表（化学常用） (评阅+3) (2/93) shouyongzhou 2007-03-14 2007-04-02 15:14:57 by shouyongzhou
    CCTV[大家]上海有机所院士蒋锡夔:理想之光映照寂寞长跑 (评阅+2) (1/275) fxp0017 2007-03-14 2007-04-02 15:13:06 by 小红豆
    [实验技术] 如何从喹啉盐酸盐回收喹啉 (6/354) 文渊 2007-03-29 2007-04-02 11:57:01 by 文渊
    请教CN如何显色 (1/72) 我不想这样4006 2007-04-01 2007-04-02 11:40:00 by silver2
    [经验交流] 液液萃取破乳技术 (+3) (7/723) sion2008 2006-10-18 2007-04-02 09:34:28 by 大大蚂蚁
    53种缓冲液的配置 (评阅+4) (3/572) sunjinyuan2008 2007-02-11 2007-04-02 08:49:08 by tanbaoyu2000
    [经验交流] 上海有机所博士写的实验室安全手册但愿警钟长鸣！！！ (评阅+3) (3/643) adm0 2007-03-31 2007-04-01 21:09:17 by 小红豆
    请教：液体表面张力的测试方法 (5/583) seventea 2007-03-19 2007-04-01 20:05:11 by jackie228
    薄层展开时，拖着很长的尾巴是什么原因？    ( 1 2 ) 2 (15/696) xwxw00 2007-03-26 2007-04-01 16:49:11 by wusilin540
    求助提纯方法 (3/314) huishourenjian 2007-03-31 2007-04-01 15:50:04 by jiasuper
    请教大虾什么是π-酸；π-碱？？？ (4/483) zsychem 2007-03-22 2007-04-01 14:43:30 by xhl-8201
    硅树脂溶胶 7 (1/248) 虎煞 2007-03-31 2007-04-01 11:09:05 by zyy816
    上海有机化学研究所林国强院士的公开信： (评阅+3) (4/1122) bhysh 2007-03-30 2007-04-01 02:40:12 by wu_pb
    甲醛与乙醛有什么比较简单的定量检测方法么 (1/100) 学员80q0EJ 2007-03-24 2007-03-31 16:35:13 by hanyu_cn
    求助：怎么合成BOC-L-Valine 1 (3/339) wanlb88 2007-03-29 2007-03-31 10:23:29 by wanlb88
    [经验交流] 化学实验室中常犯错误(精选)    ( 1 2 3 4 ) (评阅+3) (30/1273) jacules 2006-09-08 2007-03-30 22:52:27 by shiyanshi315
    求助！丙烯酸酯乳液如何打液体核磁！！！ (1/149) madongah 2007-03-27 2007-03-30 21:18:12 by madongah
    关于酰氯的疑问    ( 1 2 ) (10/1126) cece728 2006-11-13 2007-03-30 19:33:58 by yuxinghai455
    求助PH计 (3/117) 南面的风 2007-03-28 2007-03-30 13:17:50 by jasminetea
    [经验交流] 拉毛细管的教训 (评阅+1) (3/260) xiaoda1984 2007-03-22 2007-03-30 12:26:24 by 小红豆
    化学实验室安全咨询系统数据库 (评阅+3) (6/488) 19203137 2006-03-06 2007-03-30 11:48:12 by wsq402
    资源 [ 查看全部 ] 作者 最后发表
    [经验交流] 完美收集重结晶产品 (6/416) flyskysky 2007-04-06 2007-04-11 22:28:15 by wanggenghao1985
    [实验技术] 我做实验的几点体会 (6/268) zuojian198300 2007-03-29 2007-04-11 22:20:31 by wanggenghao1985
    [经验交流] [经验分享]做实验的一点体会 (2/105) 530lifei 2007-04-07 2007-04-11 17:08:06 by pkuchemistry
    超声化学的研究与应用 (2/752) cc136520 2007-04-04 2007-04-06 17:40:41 by 小红豆
    Annual Reports in Computational Chemistry (20/805) vutzisen 2007-01-20 2007-04-06 01:15:13 by hexingyi
    Applied Surface Thermodynamics (Surfactant Science Series) (1/141) 学员2bQ2PZ 2007-04-01 2007-04-02 22:39:22 by qingfeng2008
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