主题：国外最新化学抑制器 先睹为快

自卖自夸.真会装.

我们公司的，膜柱混合抑制器也不错的，我找资料出来

六、新型膜柱混合型电化学自动再生抑制器的主要特点
1.采用膜柱混合型比单纯膜抑制器的化学抑制能力和抑制容量大得多，有很高的抑制效率，可大大降低电导背景值，提高分析的灵敏度。精选牢固型离子交换膜，使抑制器的使用寿命得到极大的延长。
2.化学抑制与电化学自动连续再生的原理，对于阴离子分析系统，流动相中的HCO3-和CO32-与H+型阳离子交换树脂和树脂膜反应生成低电导的H2CO3相，而分析屋则与树脂相的H+形成高电导的HX，这样就使待测离子的相对电导信号大大提高，从而提高分析的灵敏度和选择性。
对于阳离子分析系统，流动相中的H+与OH-型的阴离子交换树脂和树脂膜反应生成不电离的H2O，而分析物则形成高电导的MOH，从而提高分析物的电导信号，即分析的灵敏度，分析的选择性和可靠性也得到提高。
利用电解水的原理使抑制器中的树脂得到自动连续再生，即使阳离子交换树脂不断氢型化，阴离子交换树脂不断OH型化。抑制器内置电流显示和电流调节装置，可方便的控制电化学再生过程。

3.用淋出液作电解液，不需另配再生液，也不增加输液装置，这样就简化了再生流路。

4.将化学抑制器与电导检测池集成在一起，这样就缩短了抑制器和检测池之间的距离，减少了液流中产生气泡的几率，抑制了色谱峰的分散，提高了测定的灵敏度，一体化结构也便于用户使用和控制。

七、关于膜柱混合型电化学抑制器与微膜抑制器性能的比较
膜柱混合型电化学抑制器是我公司在多年研究试验基础上开发的新一代离子色抑制系统，它与旧式的微膜抑制器相比，有以下几个突出的优点：
1、它比微膜抑制器省去了再生液系统（包括蠕动泵、再生液及其连接管路），只使用单一淋洗液，使抑制系统更加简化，操作更加方便。
2、膜柱混合型抑制器比微膜抑制器抑制能力更强，它通过内置可调旋钮调节电解电流（内置电流表头，使其可视化），利用淋洗液废液回流自动电解再生抑制系统背景电导，使其抑制范围更广、抑制能力更强，对要求使用浓度比较大淋洗液的色谱柱来说无疑是一个喜讯。
3、微膜抑制器它和电导池是分离的，不可避免的要用管路连接，使其死体积很大，灵敏度自然降低，数据误差大；而现在的膜柱混合型电化学抑制器把电导池做到了抑制器里面，是其死体积几乎达到零，灵敏度高，数据准确，稳定性好。
4、它应用进口树脂膜，比起微膜抑制器更加不容易损坏，使其寿命大大延长，免去了微膜抑制器担心膜被损坏的后顾之忧，使其更加稳定、可靠，得到广大用户的青睐。
5、它还是目前国内最先进的抑制系统，紧跟国际步伐，与世界先进科技同步前进。

不用说了是瑞士万通。

请问万通是不是在阜成门?

那个万通是卖小商品的,从前尽是假货,现在是否正规了?那里的东西特别便宜,还可以砍价,但是东西不耐用.

我在很多地方都看到过万通公司这样夸大其词的介绍,感觉万通公司属于那种嘴巴功夫厉害,实际上没有多少真正的东西.像我们这样的用户需要的是货真价实的分析工具,哪怕价钱贵的,只要物有所值的.我感觉万通的东西不是很成熟,即使又出新东西了,例如:双抑制器,还是要看用户使用的情况再评价,希望这次不要让人们失望呀!

我怎么看,你们两家也不是在同一水平的对手啊.戴安公司世界第一名牌是不争的事实,怎么拉上万通做对手不掉价吗?我想是不是戴安卖的太火了,找解闷的.悠着点.你们这么一争,让我们知道了万通.万通加油啊!有十年一定能赶上戴安的技术.

你又有新东西出来了。这种抑制器的机理说清楚点，是不是又吹牛呢？一看又是万通的员工在做秀，要用事实说话，果真能这么好不防试一试，我可不愿当试验品，申请点经费不容易。

所谓双抑制,是美国Alltech的技术,我们两年前就已经用过这个技术.但问题是
1.双抑制的价格比戴安的抑制还要高,
2.流路十分复杂,易漏
3.抑制后需要脱气,还要分流,峰扩散严重,同一根色谱柱可能会柱效会失去三分之一或更多,
4.抑制容量不高,只能用于低浓度的淋洗液,
因此总体而言,比不上戴安的抑制器,也没有价格优势.
下面的戴安公司和万通在美国的专利(国际性的大公司会在全世界都申请专利,特别是美国)
Dionex的US专利
PAT. NO.        Title
1    6,623,630 Method and apparatus for monitoring a fluid system

2    6,610,546 Continuous electrolytically regenerated packed suppressor for ion chromatography

3    6,562,628  Electrolytic suppressor and separate eluent generator combination

4    6,508,985  Continuous electrolytically regenerated packed bed suppressor for ion chromatography

5    6,495,371  Continuous electrolytically regenerated packed bed suppressor for ion chromatography

6    6,436,719  Displacement chemical regeneration method and apparatus

7    6,425,284  Method and apparatus for gas-assisted suppressed chromatography

8    6,328,885  Current-efficient suppressors

9    6,325,976  Continuous electrolytically regenerated packed bed suppressor for ion chromatography

10    6,316,271  Acid or base generator and method of use

11    6,316,270  Acid base or generator

12    6,315,954  Acid or base generator and analyzer

13    6,248,798  Anion-exchange resins including ion-exchange groups with at least two nitrogen groups, and methods of making and using same

14    6,225,129  Large capacity acid or base generation apparatus and method of use

15    6,077,434  Current-efficient suppressors and method of use

16    6,074,541  Preformed polymer coating process and product

17    6,045,846  Produce sterilization

18    6,036,921  Acid or base generator with chromatograph

19    6,027,643  Ion chromatographic method and apparatus using a combined suppressor and eluent generator

20    6,001,081  Kink inhibiting device

21    5,968,363  Bifunctional crown ether-based cation-exchange stationary phase for liquid chromatography

22    5,936,003  Hydrolytically stable resins for use in anion-exchange chromatography

23    5,925,253  Hydrolytically stable resins for use in anion-exchange chromatography

24    5,914,025  Ion chromatographic method and apparatus using ion reflux

25    5,865,994  Bifunctional crown ether-based cation-exchange stationary phase for liquid chromatography

26    5,843,311  Accelerated solvent extraction method

27    5,801,302  Multicycle loop injection for trace analysis by ion chomatography apparatus and method

28    5,792,331  Preformed polymer coating process and product

29    5,785,856  Automated accelerated solvent extraction apparatus and method

30    5,773,615  Intermittent electrolytic packed bed suppressor regeneration for ion chromatography

31    5,739,422  Multicycle loop injection for trace analysis by ion chromatography apparatus and method

32    5,667,657  Pressure injection apparatus and method for injecting a sample into an electrophoresis capillary

33    5,660,727  Automated analyte supercritical fluid extraction apparatus

34    5,647,976  High pressure and temperature cell for solvent extraction

35    5,633,171  Intermittent electrolytic packed bed suppressor regeneration for ion chromatography

36    5,616,227  Method for extending the life of electrophoretic gels

37    5,597,734  Ion chromatography using frequent regeneration of batch-type suppressor

38    5,597,481  Electrochemical pretreatment system for liquid sample analysis

39    5,571,725  Method for precipitation of insoluble salts in divalent ion-form materials

40    5,569,365  Intermittent electrolytic membrane suppressor regeneration for ion chromatography

41    5,532,279  Ion-exchange composition employing resin attachment to dispersant and method for forming the same

42    5,518,622  Electrochemical pretreatment system for liquid sample analysis

43    5,457,626  Bimodal liquid chromatography pump employing artificial intelligence logic feedback control

44    5,441,613  Methods and apparatus for real-time monitoring, measurement and control of electroosmotic flow

45    5,352,360  Ion chromatography system using electrochemical suppression and detector effluent recycle

46    5,324,752  Ion-exchange composition employing resin attachment to dispersant and method for forming the same

47    5,316,630  Methods for chromatography analysis

48    5,296,115  Method and apparatus for improved detection of ionic species by capillary electrophoresis

49    5,271,903  Supercritical fluid extraction restrictor and collection system

50    5,248,426  Ion chromatography system using electrochemical suppression and detector effluent recycle

PAT. NO.        Title
51    5,045,204  Method and apparatus for generating a high purity chromatography eluent

52    4,999,098  Modified membrane suppressor and method for use

53    4,839,788  Bipolar voltage to frequency converter

54    4,751,189  Method for balancing background conductivity for ion chromatography

55    4,700,059  Chromatographic optical detector with logarithmic calibration circuit

56    4,644,807  Fluid sample delivery apparatus

57    4,512,545  Externally actuated valve assembly and method

58    4,486,312  Analysis of liquid streams using tubing with protuberances on its inner wall

59    4,482,967  Conductivity detector and method

60    4,455,233  Method and apparatus for ion analysis and detection using reverse mode suppression

61    4,376,047  Coated resin ion exchange composition

62    4,351,909  High performance ion-exchange composition

63    4,314,823  Combination apparatus and method for chromatographic separation and quantitative analysis of multiple ionic species

64    4,265,634  Chromatographic separation and quantitative analysis of ionic species

65    4,242,097  Method and apparatus for quantitative analysis of weakly ionized anions or cations

66    4,148,705  Gas plasma reactor and process

67    4,127,437  Process for etching SiO.sub.2 utilizing HF vapor and an organic catalyst

68    4,119,580  Method for forming agglomerated ion exchange resin


Metrohm的US专利
PAT. NO.        Title
1    6,182,517  Burette tip

2    6,153,101  Device for ion-exchange chromatography and method of cyclically regenerating a plurality of suppressors of such a device

3    5,861,097  Method and device for preparing samples

4    5,686,829  Voltammetric method and apparatus

5    5,296,193  Combined titration apparatus

6    5,062,547  Volume measurement and dosage device

7    4,715,237  Process and apparatus for quantitative and/or qualitative analysis of liquids