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    [热点] 【博士招生】太原理工大学2026化工博士 N1ce_try 2026-02-27 刚刚
    溶液中三价铁离子、二价铁离子浓度的测定 (1/125) yamylove 2008-12-19 2008-12-19 18:02:51 by yxiuzhi
    请教性质查询 (2/78) zh1987hs 2008-12-18 2008-12-19 16:45:45 by zh1987hs
    求助，过柱 4 (4/358) jiangfeihong12 2008-12-19 2008-12-19 16:31:21 by swt1898
    【结束求助】100金币求助苯磺酸盐分析方法 (6/258) jhwind 2008-12-19 2008-12-19 15:54:04 by jhwind
    我这个样气用什么柱子？ (2/86) 四月初七 2008-12-19 2008-12-19 14:14:04 by hdl1114
    【求助】化合物的空间结构 (1/97) xyxiang1983 2008-12-19 2008-12-19 13:54:59 by opq691
    NIPAAm紫外标准谱图 5 (0/141) rhy2007 2008-12-19 2008-12-19 13:51:36 by rhy2007
    请教如何用质谱法或液相色谱法检测 3 (3/314) lstianli 2008-12-19 2008-12-19 13:23:47 by lstianli
    亚硝化滴定法分析草甘膦 10 (4/336) hppei 2008-09-07 2008-12-19 12:16:00 by hppei
    求助大家一个有关Au-S的Ksp值问题 2 (1/278) 盛宗海 2008-05-20 2008-12-19 11:09:08 by majinjie2001
    请高手指点下，热重分析问题？（有金币奖励呀） (2/199) wcj24 2008-12-18 2008-12-19 10:22:03 by sxyzt
    请教高手关于色谱仪的问题 3 (7/460) heibin1984 2008-12-17 2008-12-19 09:49:18 by heibin1984
    求助：重铬酸钾法滴定铁含量    ( 1 2 3 ) (21/1533) yinch168 2008-12-05 2008-12-19 09:46:49 by colorwind
    怎样溶解氧化铝 (9/1623) ymz 2008-10-20 2008-12-19 09:30:10 by 蓝色胡杨
    求助！酸碱滴定指示剂：酚酞和麝香草酚酞 (3/475) dachong1984 2008-12-17 2008-12-19 08:57:25 by colorwind
    【求助】表面增强拉曼测试如何制样？谢谢！ (3/504) lin886scu 2008-12-18 2008-12-19 08:01:32 by lin886scu
    废水中硝态氮的测定 (0/119) 禹过晴空 2008-12-19 2008-12-19 00:01:26 by 禹过晴空
    红外光谱中出现的向上的峰是什么意思？ 5 (7/1115) pinguo 2008-12-17 2008-12-18 23:04:53 by pinguo
    有关固相萃取 (2/119) jojo86919 2008-12-18 2008-12-18 22:53:35 by uliya809
    求助 (1/51) sofiajue 2008-12-18 2008-12-18 22:49:33 by uliya809
    GC-AED安装服务手册 (2/86) pzl0277 2008-12-18 2008-12-18 22:43:33 by pzl0277
    LC-MS的MS中会出出现离子碎片峰吗？ (3/378) zhuiyue8398 2008-12-18 2008-12-18 22:42:42 by uliya809
    10金币悬赏tocosy谱，非常感谢 (评阅-2) (4/364) yangjinyan1859 2008-12-17 2008-12-18 22:32:35 by jixf_1114
    溶液pH值的变化 (4/361) xiongbo20 2008-12-13 2008-12-18 22:30:20 by xwtsq
    气相上FPD空气和氢气流速一般调到多大？ (1/165) jwzh8 2008-12-18 2008-12-18 22:25:07 by uliya809
    求FeEDTA, NiEDTA的稳定常数 (1/85) wqfl 2008-12-18 2008-12-18 22:24:44 by lfflfhp
    求助：谱图解析 1 (4/294) penghnu 2008-12-17 2008-12-18 22:07:10 by jixf_1114
    【求助】大家如何连接毛细管和注射器针头的？ (3/524) cqdong 2008-12-15 2008-12-18 20:02:58 by 柳成阴
    Royce Murray receives Southern Chemist Award (0/39) weihui_cn 2008-12-18 2008-12-18 19:56:27 by weihui_cn
    请教毛细管柱的问题 (5/304) kikilaoyu 2008-12-16 2008-12-18 19:20:49 by nkcontrast
    [其他分析] 求助：XRD (1/218) mqy0502 2008-12-18 2008-12-18 18:54:21 by nkcontrast
    分析方法的标准 (5/509) yuanmylove 2008-12-17 2008-12-18 18:50:43 by nkcontrast
    多层膜的XRD (0/121) yuanshuhuan 2008-12-18 2008-12-18 16:41:37 by yuanshuhuan
    求助，液相色谱如何发sci文章 (6/1105) poushou 2008-12-11 2008-12-18 16:31:54 by 柳成阴
    求助：三乙胺的pH值问题 (1/460) chemhcl 2008-12-18 2008-12-18 16:22:36 by frunkwinter
    求助！请问上海地区哪能委托做HPLC-蒸发光散射检测啊？ (2/98) yangyx98403 2008-12-17 2008-12-18 16:04:41 by dmf324
    关于做核磁的问题。 (3/357) liuruijiexmc 2008-12-15 2008-12-18 15:43:01 by gongchengu
    [搞定，撤销求助]怎样通过HPLC或者GC分离分析果糖和山梨糖？ 19 (2/134) deng_jin 2008-12-14 2008-12-18 14:57:53 by wangjuan696
    [其他分析] [求助]十六烷基三甲基氯化铵和十六烷基三甲基溴化铵的区别 (2/248) enchantress 2008-12-18 2008-12-18 12:19:47 by enchantress
    十六烷基氯化吡啶的分析方法 4 (2/100) lwl913 2008-12-17 2008-12-18 10:56:09 by lwl913
    求助：国内那个厂家的气相色谱仪器更适合，求教高人指点 (3/238) 3942252 2008-12-17 2008-12-18 10:53:19 by caress0824
    [求助] 正戊醇的气相色谱出峰 (2/98) 锦瑟love 2008-12-17 2008-12-18 10:38:29 by 6yylyhm
    求助：用荧光分光光度计测含硒样品，存在吸收度吗? (0/56) lwf991229 2008-12-18 2008-12-18 10:37:10 by lwf991229
    求助：请问谁做过EDTA滴定锰 (0/66) qpf 2008-12-18 2008-12-18 10:36:45 by qpf
    [关贴]求助：尼龙六滤头是水相还是有机相 (4/3035) tingting1668 2008-12-17 2008-12-18 10:34:02 by swt1898
    怎么选择气相色谱的柱子呀? 4 (4/811) bad2266 2008-12-17 2008-12-18 10:32:58 by swt1898
    有奖求助分子量154的药物信息！！ 2 (1/83) xiaoshamao 2008-12-17 2008-12-18 08:43:26 by ocean1225
    求教岛津lc-10at泵的最高柱压设置问题？ (1/130) domon 2008-12-17 2008-12-18 07:45:23 by byron1111
    草甘膦液相柱的再生    ( 1 2 ) 3 (15/997) terryeight 2008-09-03 2008-12-18 00:24:39 by berlin
    请问。醇类的物质可否用薄层色谱分离 (0/69) fjcyt 2008-12-17 2008-12-17 21:03:23 by fjcyt
    【求助】关于自动电位滴定仪 (0/145) chinaxiao112 2008-12-17 2008-12-17 20:17:44 by chinaxiao112
    gcms的RSD在多大范围比较合适阿？ (0/70) zhw.m 2008-12-17 2008-12-17 20:05:35 by zhw.m
    [版内事务] 请假请假    ( 1 2 ) (10/319) yensh 2008-07-09 2008-12-17 20:04:04 by zhaoyongqiang
    用岛津RF-5301做同步荧光怎么操作？ 6 (7/976) 猫猫吃茼蒿 2008-12-11 2008-12-17 19:46:20 by 猫猫吃茼蒿
    大家帮忙推荐一个期刊吧~ (1/78) huangjinli 2008-12-15 2008-12-17 19:31:35 by sally208
    急！求教三氯氢硅色谱分析！ (2/124) pireslong 2008-12-17 2008-12-17 16:59:02 by xihongshidan
    表面活性剂 (0/98) 温馨9126 2008-12-17 2008-12-17 16:56:15 by 温馨9126
    C18柱分离蛋白酶解物的问题 (0/62) xiaowu2058 2008-12-17 2008-12-17 16:44:02 by xiaowu2058
    carry-out effect是啥意思 (1/71) han870702 2008-12-11 2008-12-17 16:16:17 by zhangxuan200
    求标准曲线的问题 (3/389) sd2206810 2008-12-16 2008-12-17 16:11:23 by zhangxuan200
    求助:6-氨基已酸怎么分析呀(HPLC)? (2/64) xiangcao1588 2008-12-17 2008-12-17 15:46:19 by jsys
    富马酸二甲酯分析 (1/123) jiangqinyuan 2008-12-14 2008-12-17 14:22:37 by xiafeixin
    CODcr法,测邻苯二甲酸氢钾得值一次比一次大??????????? (1/85) 灵魔 2008-12-15 2008-12-17 14:12:31 by xiafeixin
    求助植物样品中的镉如何测定 (4/876) latie20022003 2008-12-17 2008-12-17 13:37:09 by jsys
    305 型铅离子选择性电极 (0/56) yuanaiju2008 2008-12-17 2008-12-17 13:14:10 by yuanaiju2008
    请教双氧水对ODS色谱柱有影响吗 (3/326) caoweicou 2008-12-16 2008-12-17 12:03:01 by jsys
    求助，如何得到转化率、选择率、收率这些数据 (3/795) joyeeli 2008-12-17 2008-12-17 10:34:54 by jsys
    【求助】谱图分析 (2/129) zc736 2008-12-16 2008-12-17 08:59:46 by uliya809
    [关贴]【求助】取代基的吸电子与供电子强弱 (4/1110) greatsea1212 2008-12-16 2008-12-17 08:52:53 by greatsea1212
    硒的硫化物 1 (0/45) wukong6170 2008-12-16 2008-12-16 19:41:38 by wukong6170
    xps高斯解谱可以应用於碳化物吗？ 1 (0/94) btian 2008-12-16 2008-12-16 18:59:12 by btian
    急切请教喹啉的校正因子算法 (1/54) elias 2008-12-15 2008-12-16 18:11:35 by elias
    询问:液相色谱柱的选择 (3/551) vilin6977 2008-12-14 2008-12-16 17:19:52 by vilin6977
    哪儿可以做顺磁共振（低温4K-70K）？ (0/47) yclh 2008-12-16 2008-12-16 17:10:17 by yclh
    问下气相色谱柱的选择 (2/201) luckylinyu 2008-12-16 2008-12-16 16:59:32 by luckylinyu
    络合滴定水中铋和镁离子的方法 (0/53) sofiajue 2008-12-16 2008-12-16 16:34:27 by sofiajue
    请教一下有关BDS色谱柱的问题！ (2/170) zihailuo 2008-12-16 2008-12-16 16:23:20 by lankywang
    我用纯甲醇做流动相出峰，而用甲醇和水的不同比例了，就不出峰了，怎么回事？ (8/522) jackie1840 2008-12-08 2008-12-16 15:17:19 by li310
    关于荧光素的问题，请高手解答，万分感谢，并奖励金币 (2/532) SMCSDK 2008-12-11 2008-12-16 15:04:00 by SMCSDK
    想问贝克曼酸度计的型号 (0/34) keshi 2008-12-16 2008-12-16 14:36:33 by keshi
    请教安捷伦6890N GC 测量范围及准确度等级，谢谢 (2/116) 蓝风叙 2008-12-13 2008-12-16 14:03:00 by 铁甲骑兵
    关于离子浓度的变化 (2/55) tobby 2008-12-16 2008-12-16 13:50:15 by tobby
    请问flash-chromatography中文名称? (1/99) dmf324 2008-12-16 2008-12-16 11:58:38 by tsl
    有关水浴的问题 (2/85) al19851986 2008-12-15 2008-12-16 11:18:01 by al19851986
    求助：毛细管电泳中两端的毛细管不齐平，对分析结果影响大吗？ (2/165) wyznanhang 2008-12-15 2008-12-16 10:04:40 by wyznanhang
    ICH上原料药杂质即Q3A中的问题 (3/418) christinalyb 2008-12-08 2008-12-16 09:43:56 by christinalyb
    请问谁知道亚硫酸钠随温度变化的溶解度曲线 (0/2837) gudan1204 2008-12-16 2008-12-16 09:17:12 by gudan1204
    关于薄层的显色问题。高手指教 (0/90) jktc 2008-12-16 2008-12-16 09:09:24 by jktc
    [其他分析] 耐酸碱的热电偶 (0/37) 散步的鱼889 2008-12-16 2008-12-16 09:00:34 by 散步的鱼889
    【求助】苯基柱的保存 (3/553) Lisalion 2008-12-11 2008-12-16 08:36:32 by 月亮弯弯
    该用哪种色谱柱?大人推荐下咯. 10 (1/127) ycj0746 2008-12-15 2008-12-16 08:35:30 by 月亮弯弯
    高分辨结果比分子离子峰大51是什么东西 (5/370) hk-lm 2008-12-11 2008-12-16 05:50:38 by hk-lm
    寻同道人 (0/45) fffflower 2008-12-16 2008-12-16 05:04:51 by fffflower
    乳制品化验 (0/61) 南局幽魂 2008-12-15 2008-12-15 23:45:43 by 南局幽魂
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    [关贴]分析化学课件 (3/552) shuhongbo 2008-12-04 2008-12-17 23:54:16 by sevenff
    【分享】两本分子光谱书【无重复】 (10/623) yuyisfc 2008-12-05 2008-12-16 16:58:56 by yuyisfc
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