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[热点] filecode，4个jtjc了 ziyangfang 2026-08-20 刚刚
[色谱质谱] [已完结]有关植物提取的混合物组分分析 (0/398) Sacrevil 2012-09-28 2012-09-28 20:20:46 by Sacrevil
[色谱质谱] 【求助】流动相的选择 (4/1169) zjx199773 2011-03-02 2012-09-28 11:41:32 by zqxia2009
[色谱质谱] 【讨论】分析胺类（带氨基基团的）化合物用哪类气相色谱柱效果较好？ (5/3202) guizhoudaxue 2010-08-02 2012-09-28 11:37:52 by zqxia2009
[色谱质谱] [已完结][关贴]安捷伦7820A测量重复性 (1/345) zxwcn 2012-09-28 2012-09-28 11:31:25 by xbqewpq
[色谱质谱] [已完结][关贴]请教关于色谱柱及流动性选择的问题 (评阅+1) (0/298) kangbiora 2012-09-28 2012-09-28 11:05:34 by kangbiora
[色谱质谱] [已完结]高效液相 蒸发光散射，偶尔不出峰 (0/1866) iloveme110 2012-09-28 2012-09-28 10:58:39 by iloveme110
[色谱质谱] [已完结]新色谱柱的使用    ( 1 2 ) (评阅+1) (10/1625) xtzyah 2012-09-24 2012-09-28 10:55:36 by cff5616
[色谱质谱] [已完结]南京科捷 GC5890 TCD信号为-400mv，如何解决？ (0/236) 卢永春 2012-09-28 2012-09-28 09:02:14 by 卢永春
[色谱质谱] [已完结](Z, Z, Z)-3, 6, 9-nonadecatriene, (评阅+1) (3/1151) djp_186870 2012-09-23 2012-09-28 08:36:02 by djp_186870
[色谱质谱] [已完结]如何用250mg标准品配制1mg/mL的标准溶液 (评阅+1) (4/2352) 化学乐园 2012-09-27 2012-09-27 23:43:34 by 31415aa926
[色谱质谱] 高效液相色谱仪进样阀的清洗 (6/1558) guoxingkui 2011-12-19 2012-09-27 18:39:37 by 菜菜菜菜菜菜
[色谱质谱] [已完结][关贴]求翻译：气相色谱净化器再生方案的优化 (1/268) readytogo 2012-09-26 2012-09-27 17:22:14 by 泰灵佳科技
[色谱质谱] [已完结]气质联用仪没有正常关机,现在开机质谱显示界面一直是venting，不能正常开机,怎么办? (评阅+1) (3/1611) 冰琦卉 2012-09-17 2012-09-27 17:15:50 by 泰灵佳科技
[色谱质谱] [已完结]求助期刊一个 (评阅+1) (1/215) zdn19891013 2012-09-27 2012-09-27 16:47:38 by wanhao424
[色谱质谱] [已完结]氢气 可以用毛细管柱测出来吗 (0/224) 蒋海龙 2012-09-27 2012-09-27 15:18:37 by 蒋海龙
[色谱质谱] 【求助】如何选择缓冲盐，，，求高手详细指点    ( 1 2 ) (19/2137) 2005140303 2010-09-23 2012-09-27 13:13:59 by 尤修
[色谱质谱] [已完结]北京在哪能测亲水作用色谱？ (评阅+1) (1/210) yuchen2510 2012-09-23 2012-09-27 12:29:49 by yuchen2510
[色谱质谱] [已完结]GC-2010故障求教 (3/721) 406119994 2012-09-24 2012-09-27 11:39:32 by jogu
[色谱质谱] [已完结]投稿杂志请教：天然植物中酶抑制剂的筛选 (0/185) Tsingr 2012-09-27 2012-09-27 10:30:06 by Tsingr
[色谱质谱] [已完结]难题求助高手指点 (4/733) linnachem 2012-09-25 2012-09-27 08:42:23 by linnachem
[色谱质谱] [已完结]【求助】科晓气相色谱GC1690点火后将氢气流速调小就熄灭    ( 1 2 3 ) (评阅+1) (21/2762) roomat 2011-11-30 2012-09-27 07:05:43 by 一条路
[色谱质谱] [已完结]丙腈、丙烯腈、二甲胺 (2/760) tong5251 2012-09-25 2012-09-26 20:58:15 by tong5251
[色谱质谱] [已完结]HPLC总是进气 (9/1570) haizibin 2012-09-24 2012-09-26 20:45:44 by liuwei10987
[色谱质谱] 【求助】气相测空气中混合气体的含量，用什么检测器好 (8/1053) zghnzhg 2010-08-17 2012-09-26 19:32:22 by zx1990
[色谱质谱] 【求助】关于紫外检测池。。。。 (10/1838) 痴夷子皮 2010-12-13 2012-09-26 13:24:43 by 娇雷
[色谱质谱] [已完结]安捷伦 AD-H Degasser (1/736) kl-0201 2012-09-26 2012-09-26 10:46:08 by tsl
[色谱质谱] [已完结][关贴]流动相配置问题    ( 1 2 3 ) (22/2753) TLC菜鸟 2012-09-11 2012-09-26 10:16:32 by swallow13
[色谱质谱] [已完结]如何做复方制剂中TLC鉴别？几味药含有相同组分。 (0/524) yilishanshan 2012-09-25 2012-09-25 23:17:28 by yilishanshan
[色谱质谱] [已完结]HPLC测定有机酸的原理，是测定有机酸根还是有机酸根加有机酸分子？ (2/403) 小崔9333 2012-09-25 2012-09-25 20:20:36 by lifucheng
[色谱质谱] [已完结]大侠帮着看一下色谱图~~~多谢 (5/774) sdzccww 2012-09-25 2012-09-25 18:09:58 by 鸭绿江畔
[色谱质谱] [已完结][关贴]1-丁基-3-甲基咪唑氯盐的密度是多少？ (0/358) passionxiao 2012-09-25 2012-09-25 18:06:51 by passionxiao
[色谱质谱] 请问这些物质能用HPLC分析吗 (2/440) lover-0123 2012-09-25 2012-09-25 17:40:34 by swallow13
[色谱质谱] [已完结]如何利用气相色谱同时检测出二氧化氮、三氧化二氮和五氧化二氮 (0/580) raulcrespo 2012-09-25 2012-09-25 13:20:56 by raulcrespo
[色谱质谱] [已完结]化学试剂的纯度分析 (4/654) mahengyi 2012-09-20 2012-09-25 10:13:21 by mahengyi
[色谱质谱] [已完结]提取物分析检测，有没有推荐的公司？ (评阅+1) (2/320) vivi_cell 2012-09-24 2012-09-25 08:45:02 by dx109
[色谱质谱] [已完结]高效液相手性柱的区别 (4/1140) leospindrift 2012-09-24 2012-09-25 08:20:51 by yugijiang
[色谱质谱] [已完结]做HPLC需要加入0.1%BHT，如何配合？ (2/1400) myway2052 2012-09-21 2012-09-24 23:57:46 by myway2052
[色谱质谱] [已完结]双氢苯甘氨酸的色谱图 (评阅+1) (2/199) qianyang1988 2012-09-24 2012-09-24 13:56:51 by qianyang1988
[色谱质谱] [已完结]正相流动相中引入醋酸保留时间一直推迟 (1/302) zhfifi 2012-09-24 2012-09-24 13:42:25 by bcschina
[色谱质谱] [已完结]二甲基甲酰胺水溶液的气象色谱含量分析方法 (0/439) wangcl1969 2012-09-24 2012-09-24 10:57:46 by wangcl1969
[色谱质谱] 【求助】求安捷伦气相色谱仪的代理公司    ( 1 2 ) (12/3038) estrid 2010-06-18 2012-09-24 09:55:29 by Echrom_chen
[色谱质谱] 【交流】色谱中的保护柱一般可以使用多久呢？ (16/3372) studentg 2011-04-06 2012-09-24 07:27:47 by wf2008472
[色谱质谱] [已完结]色谱检测样品的结果偏高的原因 (评阅+1) (4/1381) 344591994 2012-09-22 2012-09-23 17:00:49 by wy1518
[色谱质谱] [已完结]丙烯 丙烯醛 (评阅+1) (0/334) whutpyj 2012-09-23 2012-09-23 16:05:46 by whutpyj
[色谱质谱] [已完结]求助文献一篇 (3/269) 董晓章 2012-09-18 2012-09-23 15:10:11 by 董晓章
[色谱质谱] [已完结]液相出现拖尾的偏峰，求大牛帮助~    ( 1 2 3 ) (评阅+1) (26/2295) 良生沿见 2012-09-16 2012-09-22 22:46:00 by xx小小xx
[色谱质谱] [已完结]薄层层析问题 (4/616) LM倾听 2012-09-21 2012-09-22 20:56:04 by vvsober
[色谱质谱] 这样会不会弄坏hilic柱    ( 1 2 ) (10/1587) lzdx 2012-09-21 2012-09-22 18:36:49 by hanyxin
[色谱质谱] [已完结]Agilent 1100色谱压力不稳 求解决办法 附图 (3/701) shaoheng86 2012-09-10 2012-09-22 14:24:40 by ly-g450
[色谱质谱] [已完结]求助液相萃取烟草中的有机氯加标问题 (1/254) wj202913 2012-09-20 2012-09-22 14:03:17 by MJF628
[色谱质谱] [已完结]急求一物质的HNMR数据 (4/405) shelly_1 2012-09-21 2012-09-22 13:50:01 by shelly_1
[色谱质谱] [已完结]气相色谱气体进样量问题 (9/1397) 蒋海龙 2012-09-19 2012-09-22 13:36:44 by 蒋海龙
[色谱质谱] 求助分析凝胶色谱图！谢谢！ (1/843) lixin1292006 2012-09-22 2012-09-22 12:33:52 by xx小小xx
[色谱质谱] Waters的HPLC 反相柱可以反着过来用吗？奇怪 (9/2381) foxcl 2012-09-20 2012-09-21 23:25:34 by foxcl
[色谱质谱] [已完结]怎么用HPLC法拆分萘普生对映体？ (3/694) 江湖载人 2012-09-21 2012-09-21 22:25:44 by 独步青云
[色谱质谱] [已完结]求助关于薄层制备上液相的文献 (3/631) LM倾听 2012-09-21 2012-09-21 22:23:58 by 独步青云
[色谱质谱] [已完结]气相色谱测水    ( 1 2 ) (11/1852) yuanych 2012-09-19 2012-09-21 15:48:05 by 郑州妙林
[色谱质谱] 液相色谱进样 (49/2203) jiangyu805 2012-09-17 2012-09-21 15:45:31 by 郑州妙林
[色谱质谱] 【求助】气相色谱进针问题    ( 1 2 3 ) (23/3164) djcs0411 2010-04-19 2012-09-21 15:36:24 by 鄢燕
[色谱质谱] [已完结]脂肪酸标样浓度问题 (0/1082) Libby7865 2012-09-21 2012-09-21 15:29:58 by Libby7865
[色谱质谱] [已完结][关贴]硼酸和硼砂的紫外截止波长是多少呀 已完结 (0/739) 蔚蓝987123 2012-09-21 2012-09-21 13:38:22 by 蔚蓝987123
[色谱质谱] [关贴]【求助】求Waters2695的中文说明书 (4/1548) fuzhou728 2010-07-16 2012-09-21 05:51:40 by liuhaowen
[色谱质谱] [已完结]薄层层析问题 (1/623) LM倾听 2012-09-20 2012-09-20 21:35:52 by 独步青云
[色谱质谱] [已完结]解惑    ( 1 2 ) (10/1395) yt1009 2012-09-19 2012-09-20 19:42:33 by yt1009
[色谱质谱] [已完结]目标物就是不能洗脱下来怎么办呀？？    ( 1 2 ) (评阅+1) (18/1949) 张淼 2012-09-18 2012-09-20 16:45:18 by fanxb006
[色谱质谱] [已完结]液相色谱出包峰    ( 1 2 ) (13/2051) xiaofang8248 2012-09-18 2012-09-20 15:20:28 by xiaofang8248
[色谱质谱] [已完结]分析糖的水柱子拖尾 (3/939) sunhaiyi85 2012-09-18 2012-09-20 13:23:57 by sunhaiyi85
[色谱质谱] [已完结]急。。。求高人。塔板高度与谱带展宽的定量关系 (2/263) panpan_liu 2012-09-20 2012-09-20 12:54:59 by swallow13
[色谱质谱] 气质联用 (2/347) youhongmei 2012-09-17 2012-09-20 10:51:21 by 仙人虫
[色谱质谱] 阴离子质谱/色谱分离请教 (5/755) wuaifei 2012-09-10 2012-09-20 09:31:03 by vetszh1181
[色谱质谱] [已完结]气质连用使用tr-35ms柱子新柱子老化温度多少合适？老柱子呢？老化时间是？ (0/391) 红狐狸 2012-09-19 2012-09-19 23:35:13 by 红狐狸
[色谱质谱] [已完结]癸酸甲酯的保留时间 (4/573) zhouwanji 2012-09-18 2012-09-19 18:44:22 by zhouwanji
[色谱质谱] 有关果糖降解的高效液相分析的问题 (8/927) richie512 2012-09-17 2012-09-19 17:26:19 by scarecrow143
[色谱质谱] [已完结]液相色谱手性化合物的出峰    ( 1 2 ) (12/1220) 娟宝宝0209 2012-09-18 2012-09-19 17:15:23 by jyp2002
[色谱质谱] [已完结]含有不挥发性的样品能不能直接做GC-MS测试 (1/1264) fluoro 2012-09-19 2012-09-19 16:52:13 by 地狱血幽灵
[色谱质谱] [已完结]Thermo Scientific Trace-DSQ-II 型GC/MS 购买咨询 (0/719) fyh2006813 2012-09-19 2012-09-19 15:37:05 by fyh2006813
[色谱质谱] [已完结]色谱问题求救    ( 1 2 ) (12/979) kingxin1986 2012-09-08 2012-09-19 13:02:20 by kingxin1986
[色谱质谱] [已完结]怎么提高氨基柱的柱效？！急！ (3/1468) lzzy_pan 2012-09-18 2012-09-19 11:48:01 by 娇雷
[色谱质谱] 【讨论】液相色谱压力很高是怎么回事    ( 1 2 ) (13/2963) fj1983good 2010-08-09 2012-09-19 11:35:15 by swallow13
[色谱质谱] [已完结]色谱柱求助 (3/531) lijingbo 2012-09-19 2012-09-19 10:59:38 by 娟宝宝0209
[色谱质谱] [已完结]液相色谱压力降不下来 (4/1368) fengxue21 2012-09-18 2012-09-18 20:49:57 by xl00708
[色谱质谱] [已完结]分型不对称，而且出现小的负峰 ，求指点 (2/442) yzp17 2012-09-18 2012-09-18 20:49:25 by yzp17
[色谱质谱] [已完结]GC的正己烷和HPLC的正己烷哪个好？能互用吗？ (评阅+2) (3/1978) 化学乐园 2012-09-18 2012-09-18 17:06:20 by xuchaofeng
[色谱质谱] [已完结]色谱柱在同一时间会把峰变成两个峰 (2/347) wqj947891 2012-09-18 2012-09-18 15:39:14 by wqj947891
[色谱质谱] [已完结]罗氟司特液相条件 (2/327) cclemon1215 2012-09-18 2012-09-18 13:32:19 by xiaoyong9115
[色谱质谱] [已完结]高效液相色谱流动相添加剂法拆分手性药物 (评阅+1) (3/600) 娟宝宝0209 2012-09-18 2012-09-18 12:36:25 by 娟宝宝0209
[色谱质谱] [已完结]GS-MS. Difficulty with the fan. The system is in VENT state,求助。 (评阅+1) (7/1043) jiangly1003 2012-09-17 2012-09-18 08:49:08 by mikey_m
[色谱质谱] 大家用waters的仪器了么？貌似柱温不稳    ( 1 2 3 ) (20/2248) 205205205 2012-08-30 2012-09-17 15:29:57 by 32862500
[色谱质谱] [已完结]求助合适的分析方法和色谱柱，求大师们帮忙？    ( 1 2 ) (12/1766) 涂涂木 2012-09-11 2012-09-17 15:09:27 by 涂涂木
[色谱质谱] [已完结][关贴]磷酸盐缓冲溶液 (2/698) ysl2011 2012-09-17 2012-09-17 12:14:08 by 听不到
[色谱质谱] [已完结]制备型高效液相的色谱柱 (1/842) 彭琳娜加油 2012-09-17 2012-09-17 09:48:45 by crity328
[色谱质谱] [已完结]求助离子色谱产品资料 (3/880) kitaro 2012-09-16 2012-09-16 18:22:56 by lifucheng
[色谱质谱] [已完结]高效液相 (评阅+1) (5/526) 周娇421 2012-09-13 2012-09-15 18:02:30 by noise_1987
[色谱质谱] 固相微萃取对水溶液中甲醇的浓缩倍数？ (0/300) kelvindbb 2012-09-15 2012-09-15 16:49:55 by kelvindbb
[色谱质谱] [已完结]液相色谱分不开~~~~~~~~求助啊~~~~~~~~~~    ( 1 2 ) (评阅+1) (15/1980) vera0610 2012-09-12 2012-09-15 13:49:33 by liuwei10987
[色谱质谱] [已完结]如何用液相色谱分离检测醇、酮、二元酸的混合物 (4/656) shpmxt 2012-09-12 2012-09-15 09:48:47 by shpmxt
[色谱质谱] 关于HPLC-示差折光检测器的问题 (14/3524) v_persie 2011-04-18 2012-09-15 07:00:11 by wanglishaok
[色谱质谱] [已完结]液相色谱换成甲酸水做流动相的目的？ (7/3235) xfyy 2012-09-12 2012-09-14 19:50:19 by xfyy
[色谱质谱] [已完结]液质中定性离子对和定量离子对发生颠倒了，怎么办啊？    ( 1 2 ) (评阅+1) (10/2736) yuansunshine 2012-09-13 2012-09-14 19:25:08 by sjzhang156
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