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[热点] 溴的反应液脱色 18232227466 2026-01-16 刚刚
[色谱质谱] 【求助】401担体的填充柱能走二氧化碳吗? (3/355) 大红袍 2009-09-16 2009-09-17 09:28:07 by jessonkarry
[色谱质谱] 求助:手性拆分中温度的影响 (7/557) kalon22 2009-05-31 2009-09-17 09:25:57 by sleepy
[色谱质谱] 【求助】泵压力为零 2 (9/528) liufei213 2009-09-15 2009-09-17 08:11:42 by happy169
【求助】请问鸟嘌呤和腺嘌呤在1M NaOH溶液中会破坏结构吗 (0/130) yinhuanshun 2009-09-16 2009-09-16 22:55:31 by yinhuanshun
[色谱质谱] 【求助】洗脱剂的问题 (3/306) yangfei7211 2009-09-16 2009-09-16 22:38:27 by yangfei7211
【求助】菜鸟求助关于质量分数比 (0/83) wangsuiyue 2009-09-16 2009-09-16 22:26:05 by wangsuiyue
[色谱质谱] 【求助】有机过滤膜有哪些型号? (1/95) liaoxp1985 2009-09-16 2009-09-16 21:56:09 by blackapple3731
[色谱质谱] 【求助】固体样品可否直接测试质谱 (4/1801) qqsuiyue 2009-09-16 2009-09-16 20:54:09 by honghaiyan
【求助】样品为负值时回收率的计算,是否要扣除这个负值? (6/696) 199416 2009-09-14 2009-09-16 20:50:03 by honghaiyan
[色谱质谱] 【求助】十二烷基苯磺酸钠可以用于胶束液相色谱吗? (5/340) maomaochongabc 2009-09-16 2009-09-16 20:35:14 by honghaiyan
【求助】三聚氰胺红外 (2/279) danding313 2009-09-15 2009-09-16 20:31:22 by honghaiyan
[色谱质谱] 【讨论】关于十二水硫代磷酸钠HPLC的问题 5 (3/297) emily1025 2009-09-16 2009-09-16 20:25:37 by wzm2005by
[色谱质谱] 【求助】基线上升是怎么回事?    ( 1 2 ) (11/877) cfq0218 2009-09-14 2009-09-16 20:16:10 by honghaiyan
【求助】锌的滴定 (5/507) 晁雪静 2009-09-16 2009-09-16 19:41:39 by zw8937
[色谱质谱] 【求助】请教下液相色谱 6 (2/176) xujiangli0 2009-09-16 2009-09-16 17:21:49 by xujiangli0
[色谱质谱] 【求助】条件优化 (2/111) wjcyqr 2009-09-16 2009-09-16 17:14:28 by senw
【求助】请教个HPLC问题! 5 (5/346) 19861205 2009-09-16 2009-09-16 16:59:49 by senw
请问:计算核磁产率和LC产率的方法 (2/203) yandongdong 2009-03-24 2009-09-16 16:37:59 by dengjfp
【求助】原子吸收的吸收信号问题    ( 1 2 ) 2 (13/737) zhanghui0326 2009-08-04 2009-09-16 16:29:07 by zshaohan
[色谱质谱] 【求助】关于回收率 (4/200) twtilu 2009-09-16 2009-09-16 16:13:15 by zhengcome
[色谱质谱] 【求助】毛细管等速电泳 1 (0/96) 紫親 2009-09-16 2009-09-16 15:29:30 by 紫親
[其他分析] 【求助】哪里可以做非流动气氛下的DTA? 3 (2/97) daboar 2009-09-16 2009-09-16 15:26:02 by kingwin625
【求助】质谱 核磁 (4/302) ZHENGHANG 2009-09-15 2009-09-16 15:20:04 by sunny1212
【求助】求助酰胺含量的测定方法 (0/118) mana1981 2009-09-16 2009-09-16 15:10:34 by mana1981
[数据分析] 【求助】求标准算法 (评阅+1) (2/126) lblxf-777 2009-09-15 2009-09-16 15:07:55 by lblxf-777
【求助】有谁知道盐酸羟胺的分析方法?最好是化学滴定。 5 (0/626) 铃暮薏薇 2009-09-16 2009-09-16 13:38:43 by 铃暮薏薇
[色谱质谱] 【求教】液相紫外检测器开始不了怎么办? 5 (9/684) snowleaf99 2009-09-15 2009-09-16 12:21:40 by liujunhero
【求助】急求红外图谱中关于皂石里面SiO2振动峰 29 (2/114) jgf7521 2009-09-16 2009-09-16 12:21:33 by jgf7521
[色谱质谱] 【求助】有没有HPLC常用溶剂峰的谱图数据库或书 5 (1/275) emily1025 2009-09-16 2009-09-16 12:20:32 by liujunhero
[数据分析] 【求助】解核磁服务 2 (3/298) lzb-tj 2009-09-16 2009-09-16 12:18:48 by liujunhero
【求助】氟化氢气体的红外谱图,哪位朋友有可否提供帮助? 2 (1/118) yix1994 2009-09-14 2009-09-16 12:01:59 by maomi520
【求助】醇和乙腈-水做溶剂时,手性峰的分离度不一样,请教原因? (3/404) sseia42 2009-09-14 2009-09-16 12:00:53 by maomi520
【求助】请教:黄曲霉的荧光增强剂有哪些?? 1 (3/221) flyingwings 2009-09-15 2009-09-16 11:57:52 by maomi520
【求助】元素分析发现H偏离很大,什么原因啊? (2/161) ioja 2009-09-16 2009-09-16 11:55:52 by kingwin625
【求助】10%CaCl2+90%TiO2混合在一起的XRD分析问题 10 (1/154) weison 2009-09-16 2009-09-16 11:41:56 by qianyiwanyi
【求助】硅烷化硅胶柱用环己烷活化后变透明的原理 (1/218) hczlfl 2009-09-16 2009-09-16 11:21:23 by qianyiwanyi
[色谱质谱] 【讨论】HPLC-C18柱(30mm)替换成新的流动相需要多长时间    ( 1 2 ) 3 (10/663) honghaiyan 2009-08-31 2009-09-16 11:15:56 by sherry1012
【求助】请教:怎样将毛细管电泳(Agilent)间接紫外的倒峰转变成正峰? (0/120) 静子一笑 2009-09-16 2009-09-16 10:48:18 by 静子一笑
【求助】DMA(Ⅲ)有人知道怎么合成吗? (0/61) zjp332 2009-09-16 2009-09-16 10:38:55 by zjp332
【求助】请教红外光谱对样品的要求 (2/208) nature2009 2009-09-16 2009-09-16 10:27:14 by nature2009
【讨论】测试方法选择(气相色谱或是核磁共振)    ( 1 2 ) (12/1086) xinyi8853 2009-09-14 2009-09-16 09:13:17 by kingwin625
【求助】液体物质做核磁 (5/360) gxsddxj 2009-09-15 2009-09-16 08:42:08 by gxsddxj
【求助】有机物的溶解性与蛋白作用 (2/106) aiyi313 2009-09-15 2009-09-16 08:38:34 by aiyi313
[色谱质谱] 【求助】重复试验,气相色谱为什么有时候不出峰? 3 (1/138) xiaomeimei 2009-09-15 2009-09-16 07:49:05 by liujunhero
【求助】样品中有氧化铜,氧化铋,硅酸镁,如何测其中的铜离子含量? 4 (6/257) he2008 2009-09-15 2009-09-16 07:31:43 by yunjun3
【求助】用化学自动分析仪测定青霉素效价的方法 (1/122) zlj1983 2009-09-13 2009-09-15 23:10:36 by zlj1983
【求助】分光光度计法如何测溶液铜离子含量 (3/636) 小剑 2009-09-12 2009-09-15 21:09:28 by wuhui8857
【求助】一个含量测定问题 (3/423) yangbo102010 2009-09-15 2009-09-15 20:28:44 by yangbo102010
【求助】化学分析 (评阅+1) (1/151) zhaopg2008 2009-09-15 2009-09-15 20:27:13 by zhangsibao
【求助】普鲁士蓝配制 (1/559) betty1984 2009-09-10 2009-09-15 20:03:48 by ljw2006
【求助】紫外仪器 1 (1/93) zcg123 2009-09-15 2009-09-15 19:45:16 by qwert9893
[分析前沿] 【求助】用 line-broadening analysis 方法求晶体的堆积高度 (3/162) jiaojiao2666 2009-09-09 2009-09-15 18:46:01 by jiaojiao2666
[色谱质谱] 【求助】气相与液相选择的问题 (8/397) 透明人 2009-09-14 2009-09-15 18:27:54 by 透明人
[色谱质谱] 【求助】SEC-HPLC中遇到的问题 (2/329) xlf_407 2009-09-14 2009-09-15 17:23:24 by kingwin625
[色谱质谱] 【求助】液相中梯度问题    ( 1 2 ) (13/619) yzy_0106 2009-09-04 2009-09-15 17:22:06 by zhaojunji06
求助,混合碱的熔点 (评阅+1) (1/128) diudiu0623 2008-10-01 2009-09-15 17:09:31 by taobaowang
[色谱质谱] 【求助】液相色谱柱问题    ( 1 2 ) (19/774) p515697258 2009-09-04 2009-09-15 16:57:35 by zhaojunji06
【求助】甘油醛(二羟基丙醛)和二羟基丙酮的简单定性分析 2 (0/534) 62918370 2009-09-15 2009-09-15 16:17:05 by 62918370
[色谱质谱] 【求助】GC 和HPLC常用的商业柱子规格是什么? (8/586) 宁宁9606 2009-09-01 2009-09-15 16:07:21 by whurwb
【其他】【求助】请问如何查各种糖类的pk值 10 (0/74) minic00per 2009-09-15 2009-09-15 16:03:08 by minic00per
[色谱质谱] 【求助】怎样克服色谱峰前伸的问题    ( 1 2 ) (17/1161) liuqinglin 2009-09-07 2009-09-15 15:57:01 by whurwb
[色谱质谱] 【求助】短链氯化石蜡 (0/262) zangxuelei 2009-09-15 2009-09-15 15:56:36 by zangxuelei
【求助】求助武大分析化学考博真题 9 (3/366) rll1979 2009-09-15 2009-09-15 15:54:40 by rll1979
[色谱质谱] 【求助】辛基酚聚氧乙烯醚 标准品 6 (0/106) fude007 2009-09-15 2009-09-15 15:30:54 by fude007
【求助】二水合草酸在干燥器中长期保存会不会失去结晶水 (5/1856) han870702 2009-07-25 2009-09-15 14:57:50 by sswgf1979
[色谱质谱] 【求助】同样条件气相色谱不出峰了,怎么办?    ( 1 2 ) (12/867) huagongren 2009-09-11 2009-09-15 14:40:01 by huagongren
【交流】电位滴定终点的问题 (5/436) bottlemomo 2009-09-10 2009-09-15 14:18:28 by bottlemomo
【求助】关于PH计使用的问题 (5/671) wujing1029 2009-09-15 2009-09-15 12:18:17 by 2110601118
【求助】水质检测,高手进 (1/153) zangxuelei 2009-09-15 2009-09-15 11:37:49 by qianyiwanyi
【求助】如何求配合物结合常数 7 (2/182) fanrunmei 2009-09-12 2009-09-15 11:20:53 by fanrunmei
[其他分析] 【求助】XRD 强度数据不一致,怎么换算?D/max2400 5 (1/98) jigongren 2009-08-25 2009-09-15 10:34:01 by jigongren
[色谱质谱] 【求助】气相色谱品牌问题 (6/331) mimi06 2009-09-10 2009-09-15 09:30:57 by lewzman
[色谱质谱] 【求助】岛津10ATVP进样口漏液    ( 1 2 ) (12/614) luxiaoger 2009-09-07 2009-09-15 09:29:08 by luxiaoger
[色谱质谱] 【求助】气相色谱工作站基线突然没有了,是什么回事? 5 (6/822) guilun_001 2009-09-11 2009-09-15 09:28:15 by lewzman
[色谱质谱] 【求助】做高效液相分析的帮帮忙 (5/221) cfq0218 2009-09-14 2009-09-15 09:12:51 by achen928
【求助】ICP-AES的原理、应用于那些方面的测试 (2/187) appple 2009-09-14 2009-09-15 09:03:36 by appple
[色谱质谱] 【求助】如何清洗液相保护柱的柱芯 (7/1596) sunnwenn 2009-09-14 2009-09-15 09:02:30 by achen928
【讨论】气相色谱老化柱子 (1/252) yaya2566 2009-09-11 2009-09-15 08:49:54 by zw0115
【讨论】42%液碱浓度降低了,这是为啥? (7/1278) hhyy1226 2009-09-08 2009-09-15 07:43:22 by hhyy1226
[色谱质谱] 【求助】10个金币求助三个化合物的紫外最大吸收波长! (9/399) mooncakesun 2009-09-08 2009-09-14 23:39:59 by sonydad
[色谱质谱] 【求助】有关液相色谱的问题?    ( 1 2 ) (评阅+1) (15/695) 尾巴色狼 2009-09-10 2009-09-14 23:37:03 by sonydad
【求助】氢氧化钠都与什么物质反应 (4/646) cooihui 2009-09-14 2009-09-14 22:24:09 by qwert9893
【求助】空气瓶上沾了油脂,怎么办? 4 (3/336) turky1984 2009-09-14 2009-09-14 22:05:25 by qwert9893
[数据分析] 【求助】请教origin分峰 (0/207) liyuanli1211 2009-09-14 2009-09-14 21:57:13 by liyuanli1211
学习核磁的武林秘笈    ( 1 2 3 ) (评阅+2) (20/1094) yaofei 2009-05-22 2009-09-14 21:48:15 by rodriguez
【求助】关于季胺盐,脱盐问题,如何方便检测HI请教 3 (0/101) sevensinan 2009-09-14 2009-09-14 21:37:07 by sevensinan
【求助】氯化钡溶液配制 3 (4/1832) swu060111 2009-09-11 2009-09-14 21:31:42 by 小剑
【求助】请教多糖类物质,做元素分析的前处理 (2/103) losewayboy 2009-09-11 2009-09-14 21:24:33 by losewayboy
[色谱质谱] 【讨论】气质联用漏气会使峰发生什么变化    ( 1 2 ) (11/595) 随风飘落1705 2009-09-12 2009-09-14 21:24:21 by jiangqinyuan
[色谱质谱] 【求助】请教气质联用仪问题 (6/346) jiangqinyuan 2009-09-10 2009-09-14 21:07:59 by jiangqinyuan
[色谱质谱] 【求助】编辑色谱图常用什么工具? (8/697) yzy_0106 2009-09-13 2009-09-14 20:54:59 by wh1790
问一下含油污水的黏度如何测量 (1/84) mazheng 2009-05-22 2009-09-14 20:43:01 by mazheng
【求助】急求,红外分光光度计和红外光谱仪有什么不同? (8/1336) jushi123 2009-09-12 2009-09-14 20:30:22 by ypf13
【求助】哪位朋友,有thermo plaris Q and DSQii 直接进样系统操作中文手册,急用!! 2 (1/59) ttkl533 2009-09-14 2009-09-14 20:01:10 by sseia42
【求助】空气高压瓶上沾了油脂,怎么办? 4 (3/230) turky1984 2009-09-14 2009-09-14 19:15:24 by 平凡如沙
[色谱质谱] 【求助】关于液相的压力问题请各位指教一下    ( 1 2 ) (13/785) flywen2008 2009-09-12 2009-09-14 18:45:49 by mikeliubao
[数据分析] 【求助】XPS曲线的R quare value 数值多少应该是比较合适的? (1/98) keyan0043 2009-09-14 2009-09-14 17:23:06 by keyan0043
【求助】硫酸头孢喹肟 5 (0/226) 李金平 2009-09-14 2009-09-14 16:53:16 by 李金平
[色谱质谱] 【求助】有谁知道杭州广聚化工的联系电话啊? 4 (0/51) menghui3831 2009-09-14 2009-09-14 16:31:34 by menghui3831
资源 [ 查看全部 ] 作者 最后发表
[色谱质谱] 【交流】C18的使用心得和注意事项及优化条件 (6/751) xiaoyukong 2009-08-16 2009-09-15 22:21:01 by mengyugong
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