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    [热点] 311求调剂 冬十三 2026-03-22 刚刚
    [实验技术] 请问高手能测定生物燃烧物中单质碳的含量吗？ (3/305) dubin－82 2007-04-30 2007-05-06 11:10:15 by magicpopo
    [实验技术] 一款非常实用的免费试剂仪器管理软件 (3/596) chenyun 2007-05-04 2007-05-06 10:16:35 by dianda502
    [实验技术] 醋酸铜如何除去结晶水 (2/664) xzxyry 2007-05-05 2007-05-06 08:38:45 by xzxyry
    [实验技术] TCL问题 1 (2/119) learningk 2007-05-05 2007-05-05 20:53:50 by learningk
    [实验技术] 求教：洗涤和干燥成膜基质的玻璃片的具体方法？ (1/100) gianthai 2007-05-03 2007-05-05 16:10:46 by zj19820305
    [实验技术] 为什么检测不到氧化产物 (2/93) shaoyutian 2007-04-09 2007-05-05 15:50:58 by tjtbeny
    [经验交流] 求一句话的翻译，谢谢 (2/142) myqd 2007-04-30 2007-05-05 10:53:17 by zj19820305
    [实验技术] 求助隔氧化学合成问题 (3/228) yilvyouxiang 2007-04-29 2007-05-05 01:02:39 by ulanhot
    [经验交流] 如何为做好试验与发paper    ( 1 2 ) (+7.5) (评阅+3) (14/1701) wsposw 2006-01-10 2007-05-04 21:45:09 by zhuyaojie
    [实验技术] 着急！请教虫友下列问题! (2/117) supercoolguy 2007-05-04 2007-05-04 20:28:43 by gianthai
    [实验技术] 密封回流内有气体用什么反应装置？ (4/496) hb01102011 2007-04-04 2007-05-04 20:02:27 by gianthai
    [经验交流] 单晶高手的经验－简单、实用－及无水无氧条件下的单晶培养方法    ( 1 2 3 4 5 6 ) (评阅+2) (55/4807) lxf7212 2006-05-01 2007-05-04 16:44:26 by gianthai
    [实验技术] 为什么磁子的颜色会变化？而且洗不掉？ (6/641) caphyboy 2007-04-30 2007-05-04 16:26:10 by gianthai
    [经验交流] 化学期刊所属数据库列表(A-C)    ( 1 2 ) (+3) (评阅+4) (12/777) 雪伦 2006-05-26 2007-05-04 09:34:15 by wangys99
    [实验技术] SCI收录期刊名称的简写!    ( 1 2 ) (+1.5) (评阅+1) (15/914) tjtj440 2006-03-10 2007-05-02 23:14:35 by keepupup
    [实验技术] 求助：如何选择乌氏粘度计，谢谢！ (2/168) hake 2007-04-28 2007-05-02 08:50:06 by jsy2271
    请问在哪里(国外及国内)能买到Trifolin(三叶豆苷)标准品(分析纯),多谢了! (3/317) wp086 2007-04-21 2007-05-02 02:51:28 by wp086
    画氢键拓扑网用什么软件呢？ (3/322) lattice 2007-04-30 2007-05-01 21:45:34 by zilanyu
    求CAS登记号，有结构式 (2/124) xunyu 2007-05-01 2007-05-01 17:06:36 by appleren
    请教：离子液体和低共熔化合物的主要区别？ (3/1324) 2005kongying 2007-04-30 2007-05-01 11:22:47 by 2005kongying
    求教关于钼蓝法 (1/60) sniper1234 2007-04-30 2007-05-01 10:38:07 by sniper1234
    [实验技术] 求助! Mo正四价怎么表征. (4/469) yhhhhyhhy 2007-04-09 2007-05-01 01:00:48 by magicpopo
    [实验技术] 有什么简单的方法将反应温度控制在2度?    ( 1 2 ) (12/701) 沙漠之子 2007-04-06 2007-04-30 23:45:21 by achao
    ”Immersion calorimetry“是什么技术 (3/361) 春去春又回 2007-04-30 2007-04-30 22:11:25 by 春去春又回
    [经验交流] 酯类水解的问题 (1/195) ymzh456 2007-04-25 2007-04-30 16:42:12 by luohuali
    请问：怎么判断金属基体表面是否成膜 (3/304) chunyubai 2007-04-26 2007-04-30 16:40:48 by iandyou
    [经验交流] 实验室操作经验 (评阅+3) (2/177) liuxx_219 2007-04-30 2007-04-30 16:35:38 by luohuali
    给大家推荐一个很好的化学实验操作相关的网站 (评阅+2) (5/815) gianthai 2007-04-26 2007-04-30 15:11:40 by SHYBOY小伟
    [实验技术] 求助啊，我合成的化合物不走板 (3/322) icyingjun 2007-04-29 2007-04-30 13:35:11 by tjtbeny
    计算机化学的主要期刊与专著 (评阅+2) (2/119) xiguatailan 2007-04-28 2007-04-30 04:15:01 by yalefield
    [经验交流] Tris(2-aninoethyl)amine是什么物质？ (2/169) yibingxuan 2007-04-29 2007-04-29 23:37:31 by dota
    [实验技术] 求助如何得到铈盐！ (2/127) 新研楼 2007-04-28 2007-04-29 20:18:21 by xhl-8201
    06年影响因子 (4/235) lemon2378 2007-04-23 2007-04-29 17:35:02 by zilanyu
    [实验技术] 请教：铜片中微量元素的分析 (4/349) snowfield_1985 2007-04-25 2007-04-29 17:06:18 by snowfield_1985
    [无机化学] [关贴]请教：关于同一物质单晶和双晶晶胞参数的问题 5 (3/309) fjirsmdww 2007-04-11 2007-04-29 15:12:48 by lrdww
    [实验技术] KOH和NaOH的腐蚀有什么不同？ (3/715) 随你听风 2007-04-21 2007-04-29 11:31:07 by my999love
    [无机化学] 与氯化铈有关 (3/174) 新研楼 2007-04-15 2007-04-29 09:16:31 by zilanyu
    [无机化学] [关贴]请问Mg（OH）2和Al（OH）3等的分解温度？ (2/259) sdqdsdqd 2007-04-28 2007-04-29 07:11:23 by sdqdsdqd
    [实验技术] 求助:对苯二甲酰氯怎么提纯?只能买到化学纯的! (3/360) cchang2008 2007-04-27 2007-04-28 23:11:51 by wjw2005
    [经验交流] 化学专业资源库，n全的！！    ( 1 2 ) (+6.5) (评阅+3) (11/2041) luyd97 2005-06-06 2007-04-28 23:10:58 by lwnk2006
    关于结晶的问题 (2/133) linda２００８ 2007-04-28 2007-04-28 20:54:03 by sccgy
    【疑难】请问这个反应中的DCC是什么？ (7/904) joanpig 2007-01-29 2007-04-28 18:38:54 by superhuabc
    纳米粉末的处理 (3/377) xingxin9 2007-04-24 2007-04-28 15:42:26 by zcyun123
    发一个化学工作者常用网站自制精简版 (评阅+1) (5/351) ldc 2007-01-02 2007-04-28 09:49:49 by wingtide
    [实验技术] 硅胶的类型 (评阅-1) (3/187) flyzhangli 2007-04-19 2007-04-27 21:39:46 by 小红豆
    请教：什么是活性化合物 (4/702) 10rain 2007-04-14 2007-04-27 21:37:01 by 10rain
    [经验交流] 超级洗玻璃容器方法    ( 1 2 3 4 ) (评阅+2) (31/1446) 懒猫爱美丽 2006-08-09 2007-04-27 19:18:59 by cxj4200
    [实验技术] 请教高手：对映异构体的HNMR谱图有区别吗？ (3/384) surpdream 2007-04-26 2007-04-27 19:08:57 by wjw2005
    [实验技术] 求助一个有机配体的反应 (1/113) marklee1975 2007-04-27 2007-04-27 18:57:58 by wjw2005
    [经验交流] 萃取操作及注意事项 (评阅+1) (4/713) sinapdb 2006-09-22 2007-04-27 18:55:28 by cxj4200
    [经验交流] 溶剂毒性总结 (4/245) violetbobo 2007-04-14 2007-04-27 18:53:24 by cxj4200
    [经验交流] 旋蒸时要小心 (6/262) ymzh456 2007-04-26 2007-04-27 18:50:07 by cxj4200
    [经验交流] 消防基本知识及灭火器使用方法 (评阅+3) (2/117) 关键先生 2007-04-04 2007-04-27 18:47:08 by zxj123456
    [经验交流] 常用化学物料化学防护 (评阅+2) (3/231) fage2000 2007-04-05 2007-04-27 18:39:13 by zxj123456
    重结晶（过滤问题） (4/475) jimmy0566 2007-04-27 2007-04-27 18:24:12 by 小红豆
    急问：求教锌粉的活化方法？ (2/484) gianthai 2007-04-27 2007-04-27 16:24:44 by gianthai
    请问：低温长时间烘干 (3/875) chunyubai 2007-04-27 2007-04-27 14:43:42 by wingtide
    [实验技术] 请问怎么Layered double hydroxides (LDH)制备粉末？ (1/134) sdqdsdqd 2007-04-27 2007-04-27 14:36:55 by sccgy
    求教氮气保护下，液体石蜡倒吸了怎么办 (3/522) why1984why1984 2007-04-25 2007-04-26 20:30:28 by xiaoda1984
    [实验技术] 有机实验中处理乳化的好方法 (评阅+1) (8/659) 骑着蜗牛追火箭 2006-10-14 2007-04-26 19:48:30 by levixzhu
    二甲胺甲醇溶液的制备方法 (2/373) yzj0315 2006-08-28 2007-04-26 15:57:45 by dalei1004
    谁知道怎么洗涤硅油？    ( 1 2 ) (11/840) zhuanguo 2007-03-14 2007-04-26 13:12:27 by zhuanguo
    实验仪器购买?    ( 1 2 ) (10/869) yunliuxy 2007-04-17 2007-04-26 10:01:40 by cad2345
    请问抽真空干燥和普通的烘干箱中的干燥有什么区别    ( 1 2 ) (11/1127) givenchy 2007-04-10 2007-04-26 10:00:18 by cad2345
    求助：如何查一些有机材料的密度和Z-ratio    ( 1 2 ) (10/1547) jndq 2007-04-05 2007-04-26 08:37:56 by jndq
    API gravity 一般默任值是多少 (2/70) tyxf99 2007-04-22 2007-04-25 20:28:55 by tyxf99
    求2－十二碳烯酸物理性质 (2/64) zyan 2007-04-24 2007-04-25 15:05:58 by zyan
    正交实验 1 (4/179) liw408 2007-04-24 2007-04-25 10:58:05 by liw408
    [实验技术] 荧光产率的测定 (评阅+2) (2/202) niuniu0116 2007-04-24 2007-04-25 10:40:07 by pennydarcy
    分子量的测定方法 (5/652) zhouth 2007-04-08 2007-04-25 10:03:14 by headhanf
    实验方法的求助 (1/122) wodesheng 2007-04-24 2007-04-25 09:43:07 by bamboo_111
    实验室洒落的汞用硫粉覆盖以后再怎样处理? (3/741) zj1025 2007-04-24 2007-04-25 09:39:19 by sccgy
    [经验交流] 求助5A分子筛。 (2/108) hm2006 2007-04-24 2007-04-25 09:03:43 by hm2006
    滴定管被凡士林堵了怎么办？    ( 1 2 ) (10/2163) heihediao 2007-04-20 2007-04-24 23:00:07 by bndz
    请问：真空干燥箱和烘箱对于烘干物质有什么区别？ (4/1121) chunyubai 2007-04-24 2007-04-24 22:54:17 by 小壹
    表面张力和界面张力 1 (3/492) learningk 2007-04-24 2007-04-24 22:09:42 by xiaoda1984
    [经验交流] [关贴]求助化学类核心期刊排名表！ (2/232) hm2006 2007-04-24 2007-04-24 22:03:33 by hm2006
    [经验交流] [资源]我在实验过程中总结出的经验    ( 1 2 ) (+4.5) (评阅+1) (15/1316) heck 2005-07-05 2007-04-24 21:09:16 by rsj0506
    液体石蜡的问题？急！ (1/106) zrqwl 2007-04-24 2007-04-24 16:47:15 by zyy816
    乙醚旋蒸时可以加热吗？ (9/3379) yibaigood 2007-04-22 2007-04-24 15:43:16 by zapvip
    [实验技术] 求氧化型淀粉胶制法 (1/121) 海2008 2007-04-22 2007-04-24 13:32:10 by 海2008
    国内从那能买到小包装的六氟丙酮，谢谢 (1/100) bond1 2007-04-24 2007-04-24 10:41:21 by sccgy
    精华I:  Dekker Encyclopedia Of Nanoscience And Nanotechnology    ( 1 2 3 4 5 6 .. 17 ) (+68) (评阅+10) (169/14840) 520025 2006-06-12 2007-04-24 10:08:56 by lzuxz
    结晶问题 (6/676) liaobenren 2007-01-25 2007-04-24 06:18:20 by chenliang
    无氧的方法有哪几种？ (3/256) 丫85丫 2007-04-22 2007-04-24 04:27:41 by iceland820616
    请问有关过柱的问题 (6/403) cainichen 2007-04-20 2007-04-24 00:52:19 by cainichen
    请教丙醛的处理问题 (评阅+1) (1/116) topeightbobo 2007-04-23 2007-04-24 00:29:57 by 小壹
    钒酸氨的毒性如何？怎样防治？ 1 (评阅-5) (2/108) bdecho 2007-04-18 2007-04-23 20:01:33 by yangyifan
    [经验交流] 请教一个有关重叠积分的问题！ (1/139) yeliping 2007-04-21 2007-04-23 18:58:57 by wanghongyu
    资源 [ 查看全部 ] 作者 最后发表
    [经验交流] 固体光气的理化性质、使用、安全及其泄漏处理 (2/996) tanglion 2007-05-05 2007-05-05 21:18:39 by zhangquee
    Metal Oxide Chemistry and Synthesis: From Solution to Solid State (17/307) 学员2bQ2PZ 2007-04-27 2007-04-30 20:38:24 by yyy198129
    [经验交流] 固体酒精自制，下面不用愁！！ (1/279) enger7012 2007-04-30 2007-04-30 14:57:48 by 小红豆
    [综合其它] The Chemistry of the Hydrazo Azo and Azoxy Groups Volume 2 (5/159) 学员2bQ2PZ 2007-04-28 2007-04-29 19:53:30 by singjiapo88666
    Volume 2 Supplement C2 The Chemistry of Triple-Bonded Functional Groups (2/163) 学员2bQ2PZ 2007-04-28 2007-04-28 19:42:15 by singjiapo88666
    Chemistry of the Hydrazo, Azo and Azoxy Groups (2/266) 学员2bQ2PZ 2007-04-28 2007-04-28 19:39:13 by singjiapo88666
    Metal Dihydrogen and Bond Complexes Structure Theory and Reactivity (6/302) 学员2bQ2PZ 2007-04-27 2007-04-28 18:01:16 by sibaken
    【生物化学】[2006ebook]Bionanotechnology: Proteins to Nanodevices (32/1768) darliu 2007-04-11 2007-04-28 15:57:40 by darliu
    [实验技术] 求助:关于溶胶和凝胶的一些问题,谢谢各位了 (2/191) shida2006 2007-04-27 2007-04-28 09:18:41 by shida2006
    TLC使用指南 (7/333) lyde1982 2006-11-28 2007-04-27 21:06:26 by linda２００８
    聚烯烃功能化最新的一篇review，并有一个问题请教 (1/134) chuanhuizsu 2007-04-24 2007-04-24 20:20:35 by bio-polymer
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