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[热点] 最失望的一年 老年副高的关门� 2026-01-20 刚刚
求助，超稠油红外表征测量方法 (3/200) fjzhao 2008-04-24 2008-04-25 08:00:57 by ramanlxh
[其他分析] 表面分析仪器的分辩率和灵敏度(很全哦) (评阅+1) (4/376) 我是狼 2007-09-27 2008-04-25 07:32:38 by wwweeerrr
[其他分析] 求助：MDI jade 5.0X-射线衍射分析软件 (1/217) yuanqi_6514 2008-04-25 2008-04-25 02:12:09 by yuanqi_6514
求助：有关氧化铝做固相萃取填料的问题 (3/249) kangshengsu 2008-04-10 2008-04-25 01:14:46 by 开花豆豆
tris-hcl缓冲溶液可以配到6.8以下吗 (3/514) pring 2008-04-09 2008-04-25 00:25:11 by Apple871
超声波萃取会导致中间产物的破坏吗？ (5/352) cherrydew 2008-04-23 2008-04-25 00:03:01 by cherrydew
请教什么稀土离子能在600多nm的地方有吸收？ (1/52) p1801321 2008-04-21 2008-04-24 22:40:23 by bluesky206
胶水的粘度测试方法 (1/778) xingzhushi 2008-04-24 2008-04-24 21:28:35 by 兔子不乖
有关气相色谱柱温选择的一个小问题？ (1/128) olifor2010 2008-04-23 2008-04-24 21:13:13 by 兔子不乖
求助：如何用气相色谱检测三氯甲烷 气相色谱为安捷伦6890n (4/552) 022710212 2008-04-24 2008-04-24 21:08:57 by 兔子不乖
制备液相色谱怎么才能用得好？ (1/140) songyang 2008-04-23 2008-04-24 20:55:23 by 兔子不乖
请教NH2柱的问题 (3/239) zzyszy2012 2008-04-24 2008-04-24 20:36:45 by 兔子不乖
我这样测红外的方法是否有错 (4/292) masterbug 2008-04-22 2008-04-24 19:29:38 by zyxie123
求助:多环芳烃的HPLC 在C18柱上的保留时间有多长 (3/666) gaozhy201 2008-04-23 2008-04-24 19:08:16 by afeicas
[关贴]散一些金币，攒一些人品    ( 1 2 3 ) (24/406) littlewing2007 2008-04-24 2008-04-24 18:41:31 by damojinghong
求助如何制备镍胶体（镍纳米颗粒） (1/81) 拉曼先生 2008-04-24 2008-04-24 17:34:27 by ramanlxh
【求助】聚丙烯标准谱图解析 (6/380) god-mars 2008-04-22 2008-04-24 17:14:22 by alumnium
[其他分析] 有没有人用过国产的中高压层析柱，急。 (0/127) margaretphd 2008-04-24 2008-04-24 16:55:44 by margaretphd
求助！液相色谱分析以下物质 (9/432) hujb 2008-04-23 2008-04-24 16:22:52 by jinshanshi88
求助 (1/86) huangxiaojuan 2008-04-24 2008-04-24 14:59:40 by zuoguoqiang
请教液相色谱柱及保护柱的保存方法 (3/661) lastat 2008-04-23 2008-04-24 13:51:57 by lastat
分析乙醛时色谱条件设定 2 (金币≥1)(3/50) gq0554 2008-04-23 2008-04-24 13:26:14 by gq0554
求助气相用载气    ( 1 2 ) (12/585) sqrfly 2008-04-22 2008-04-24 13:03:00 by sqrfly
求助Glycidamide的紫外图谱和液相图谱 (2/57) wyj198409 2008-04-24 2008-04-24 12:45:03 by wyj198409
[版内事务] 为什么不开设化学计量学版块啊？ (2/70) al19851986 2008-04-23 2008-04-24 09:34:12 by al19851986
[请教] 原子吸收仪器北京普析和上精 (2/132) xd_zidiao 2008-04-23 2008-04-24 09:16:25 by xd_zidiao
亚甲基兰脱色方法 (0/112) elfstar899 2008-04-24 2008-04-24 07:51:07 by elfstar899
求助：关于生物质谱最新的研究方向 (0/87) xuox 2008-04-24 2008-04-24 01:23:04 by xuox
求助：纤维素酶降解糖类后低聚糖类的HPLC检测方法？ (6/356) yang327chen 2008-04-22 2008-04-24 00:23:56 by zjpxw
求助:奇怪的碳谱,请高手指点. 10 (9/407) zhangwei2008 2008-04-18 2008-04-23 22:07:39 by superwq
有谁知道葡萄糖酸的检测方法 (1/115) 陪你淋雨 2008-04-23 2008-04-23 21:56:14 by afeicas
求助：20ug/ml浓度进样10ul和10ug/ml浓度进样20ul有区别么？ 5 (7/1114) zhaocai进宝 2008-04-22 2008-04-23 21:49:50 by 柳成阴
[其他分析] 求助NdCO3OH红外光谱解析 2 (0/57) shangxingfu 2008-04-23 2008-04-23 21:40:11 by shangxingfu
全反射与衰减全反射红外 (3/913) uknow735 2008-03-18 2008-04-23 21:13:21 by ramanlxh
聚乙烯红外光谱 (2/104) davidgu 2008-04-23 2008-04-23 21:08:36 by ramanlxh
多糖吸水后的结构分析： (3/251) rosysky 2008-04-17 2008-04-23 21:07:31 by dnazyme
求助对照品的技术要求以及标化方法。 (2/64) chinesechina 2008-04-23 2008-04-23 20:10:39 by jjf4085
二维色谱的调制器,国内外发展? (5/303) zhl009 2008-04-21 2008-04-23 20:05:13 by evilzhou
755B型紫外可见分光光度计参比试样无法显示T100%? (1/45) qiangqiang8181 2008-04-23 2008-04-23 19:51:39 by fly872
[其他分析] 碳谱分析 (6/155) niuniu0116 2008-04-19 2008-04-23 19:47:35 by fly872
我们单位要用滴定法测油品中的酸度,但是KOH在乙醇中溶解不完全 (4/412) zfk131420 2008-04-23 2008-04-23 19:38:28 by myqwyp
不同检测器进样量与响应值的关系？ 1 (3/436) olifor2010 2008-04-23 2008-04-23 19:33:48 by jjf4085
求助大家，相对标准偏差RSD的问题 (2/207) pilibeibei 2008-04-23 2008-04-23 18:57:25 by evilzhou
HPLC进样量与峰面积的关系？ (2/130) olifor2010 2008-04-23 2008-04-23 18:54:00 by evilzhou
三元相图如何分析？ (2/79) shooshow 2008-04-23 2008-04-23 17:43:35 by fdwllq
液相色谱进样量的多少如何选择？    ( 1 2 ) (12/1954) olifor2010 2008-04-11 2008-04-23 17:30:12 by olifor2010
“第三期原子荧光光谱分析技术与应用”培训班通知 (0/68) chemgoods 2008-04-23 2008-04-23 17:29:09 by chemgoods
我写的物质鉴定步骤（请大侠帮忙检查） (评阅+1) (2/184) sb250 2008-04-18 2008-04-23 17:03:55 by daldinia
求助: 17 (7/110) feng007cn 2008-04-22 2008-04-23 16:37:37 by boxue
[其他分析] 帮忙看看 (0/43) 031058sky 2008-04-23 2008-04-23 16:15:31 by 031058sky
懂原子发射的进来看看 (1/84) ai4_0 2008-03-05 2008-04-23 16:02:05 by gl33811
[其他分析] AFM数据用什么分析软件？ (0/240) 82年的纯净水 2008-04-23 2008-04-23 15:56:00 by 82年的纯净水
请教高手 急急急急！ (2/79) davidgu 2008-04-23 2008-04-23 15:41:56 by davidgu
求助：如何降低盐酸阿霉素在水中的溶解性 (2/335) zhangchandyf 2008-04-22 2008-04-23 15:22:45 by 兔子不乖
气相色谱 (金币≥5)(4/83) wangfahui6 2008-04-22 2008-04-23 15:17:14 by 铁甲骑兵
放弃求助：X沸石的判定 10 (0/42) fanghua 2008-04-23 2008-04-23 13:59:10 by fanghua
做气质用气相的条件可以吗 (2/100) anshelly 2008-04-23 2008-04-23 11:28:04 by anshelly
ICP高手来帮我解决一下问题 5 (5/353) zhaofakuen 2008-04-10 2008-04-23 11:11:04 by zhaofakuen
纯水有什么指标吗? (3/372) zfk131420 2008-04-22 2008-04-23 11:03:37 by zfk131420
山东省产品质量监督检验研究院怎么样？ (3/425) luckydog882 2008-04-22 2008-04-23 10:10:24 by jinshanshi88
谁知道丙酮的色散力是多少? (1/156) liuxiu1956 2008-04-23 2008-04-23 10:08:26 by jinshanshi88
[其他分析] 求助：一种医药药品 (1/51) lingdang_tj 2007-08-11 2008-04-23 09:50:46 by al19851986
求助：有没有人用过HPR－20 QIC 质谱仪？？ (0/91) chl5063 2008-04-23 2008-04-23 09:43:30 by chl5063
求教：如何分析XRD做出来的衍射图样？ (0/85) bjj247 2008-04-23 2008-04-23 09:31:54 by bjj247
紫外可见 (2/128) al19851986 2008-04-22 2008-04-23 09:25:55 by al19851986
求助NdCO3OH红外光谱解析 2 (0/45) shangxingfu 2008-04-23 2008-04-23 09:07:45 by shangxingfu
求助：请问北京哪里可以做元素分析阿 (2/81) LL2006 2008-04-22 2008-04-23 08:52:18 by zhzhg283
[关贴]资源+学术的好地方 (金币≥3)(2/27) antitech 2008-04-23 2008-04-23 07:51:46 by yensh
元素灯为何点不亮 (1/81) wxmgzu 2008-04-21 2008-04-23 07:15:15 by wbzhang
[其他分析] 石油醚萃取的乳化层怎么处理 (5/794) taomasxu 2008-04-08 2008-04-23 04:57:06 by fly872
用什么方法能分析出酸性水溶液中的少量有机物 (8/502) jinhailong 2008-04-14 2008-04-22 22:51:16 by fdwllq
请问儿茶素标样如何购买?如何确定其可信度 (1/76) bibiyang 2008-04-22 2008-04-22 22:48:21 by fdwllq
化学计量学 (6/276) al19851986 2008-04-22 2008-04-22 21:47:54 by zhitongxing
[其他分析] 问下淀粉分子量 (3/612) heroliu324 2008-04-22 2008-04-22 21:32:43 by heroliu324
求助：怎样提高分离度 (8/644) print2889 2008-04-21 2008-04-22 21:15:41 by print2889
求助：如何在硅胶表面键合羧基？ (1/80) bluappl 2008-04-22 2008-04-22 21:01:54 by dlseasky
求助：25%甲醛溶液的配制和浓度检验方法 (3/1478) xiongbo20 2008-04-20 2008-04-22 20:22:26 by xiongbo20
[请问]对于HPLC的初学者来说看什么教科书比较合适 (2/88) hlp117 2008-04-21 2008-04-22 17:32:11 by julane
乙酰基团的定量 10 (0/31) dnazyme 2008-04-22 2008-04-22 16:59:02 by dnazyme
请问购买荧光比色皿的问题！ (3/301) kinghuatan 2008-04-22 2008-04-22 16:57:55 by zhitongxing
请教!!!HPLC高手请指点下！ (9/498) wewew16180 2008-04-21 2008-04-22 16:54:20 by wewew16180
pH值问题（求助） (1/60) 急浪轻舟 2008-04-22 2008-04-22 16:36:48 by jzz8035
苯乙酸的标准谱图 1 (8/476) juventus18 2008-04-22 2008-04-22 16:16:26 by juventus18
求助微量硫酸根离子的检测方法 (7/487) 一流涧水 2008-04-21 2008-04-22 14:56:56 by 一流涧水
请教关于化学符号的问题 (2/69) 3s_studio 2008-04-22 2008-04-22 11:51:44 by 3s_studio
【请教】荧光分析 (2/143) chenxa1981 2008-04-21 2008-04-22 11:19:04 by limingtiaan2
【请教】有机相中金属离子和酸度的分析和水相有区别吗？ 10 (0/69) thinbear007 2008-04-22 2008-04-22 10:05:15 by thinbear007
求助色谱柱选择和分析条件 1 (5/438) mandyjin 2008-04-03 2008-04-22 09:55:46 by mandyjin
求助：纯锡如何化学抛光？ (0/52) hyliu0203 2008-04-22 2008-04-22 09:47:33 by hyliu0203
请教：722分光光度计与581-G光度计 10 (0/333) ziyeshu 2008-04-22 2008-04-22 09:25:42 by ziyeshu
怎样测定小米的比重呢 (2/82) yafeng_326 2008-04-21 2008-04-22 09:21:53 by jzz8035
红外识谱歌 (1/170) wangyb4142 2008-04-21 2008-04-22 06:57:01 by anny67
几篇红外的论文 (2/72) wangyb4142 2008-04-21 2008-04-22 00:51:11 by hynukyf
[其他分析] 求助：日立z2000火焰进样管的问题 8 (0/35) 豆哥 2008-04-21 2008-04-21 22:09:27 by 豆哥
资源 [ 查看全部 ] 作者 最后发表
[其他分析] 仪器分析原理 (6/635) lihongwei48108 2007-09-28 2008-04-25 06:48:53 by wuyq6502
北京普析TU-1901紫外可见分光光度计操作细则 (6/928) lww123 2008-04-18 2008-04-24 00:05:41 by hzz998
化学分析样品前处理手册 (15/812) EdwardLau 2008-04-06 2008-04-23 16:28:09 by wjf0113
质谱分析课件 (19/553) laidewanle 2007-12-03 2008-04-23 01:08:16 by houbingfeng
[其他分析] Regionalization of Watersheds (2/365) armea 2008-04-22 2008-04-22 18:51:25 by yensh
表面化学分析方法 (15/718) lixiangsioc 2007-08-19 2008-04-22 07:43:51 by yxwjimmy
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