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    • 7. 发明申请
    • CHROMATOGRAPHIC METHODS FOR MEASURING IMPURITIES IN A GAS SAMPLE
    • 用于测量气体样品中的污染物的色谱方法
    • WO2006089412A1
    • 2006-08-31
    • PCT/CA2006/000258
    • 2006-02-22
    • SYSTEME ANALYTIQUE INC.GAMACHE, YvesFORTIER, André
    • GAMACHE, YvesFORTIER, André
    • G01N30/88G01N30/46
    • G01N30/461G01N30/14G01N30/465G01N2030/025G01N2030/143G01N2030/8872
    • The present invention provides an improved chromatographic system and an improved chromatographic method for measuring impurities in a gas sample that advantageously allow to extract a peak of impurity masked by the sample background. The method extracts an impurities peak from the sample background and put it in a second sample loop. Then, this second sample loop volume is injected into a second separation column. In fact, the system takes a "slice" from the sample background and fills the second sample loop with it. Then, the "slice", whose width is advantageously substantially equal to the impurities peak width, is injected in the second separation column. In a further preferred embodiment, the method also advantageously allows to concentrate a predetermined impurity, thereby providing an improved precision on the results. The chromatographic method advantageously provides an improved measure of argon in oxygen, oxygen in argon and oxygen in hydrogen.
    • 本发明提供改进的色谱系统和用于测量气体样品中的杂质的改进的色谱方法,其有利地允许提取由样品背景掩蔽的杂质的峰。 该方法从样本背景中提取杂质峰,并将其置于第二个样品环中。 然后,将该第二样品环体积注入第二分离柱。 实际上,系统从样本背景中获取“切片”,并用它填充第二个样本循环。 然后,将其宽度有利地基本上等于杂质峰宽的“切片”注入第二分离柱。 在另一优选实施方案中,该方法还有利地允许浓缩预定的杂质,从而提供对结果的改进的精度。 色谱方法有利地提供氧气中氩气,氩气中的氧气和氢气中的氧气的改进测量。
    • 8. 发明申请
    • CHROMATOGRAPHIC SYSTEMS AND METHODS FOR ELIMINATING INTERFERENCE FROM INTERFERING AGENTS
    • 用于消除干扰剂干扰的色谱系统和方法
    • WO2007045068A1
    • 2007-04-26
    • PCT/CA2006/000364
    • 2006-03-10
    • SYSTEME ANALYTIQUE INC.GAMACHE, YvesFORTIER, André
    • GAMACHE, YvesFORTIER, André
    • G01N30/88
    • G01N30/40G01N30/468G01N2030/025
    • The present invention provides a chromatographic method for eliminating interference from interfering agents, coming from the gas sample itself or from the system material used to perform the impurities measurements, on impurities to be quantified in a gas sample. The method advantageously relies on the use of an additional valve and an additional sample loop particularly arranged in a G. C. system, and also on an additional supporting gas inlet operatively connected to the system through the additional sample loop for providing the system with a supporting gas comprising at least a predetermined portion of a predetermined active gas that will react with the unwanted interfering impurities, if any, or with the column material to cancel out unwanted active sites. Thus, the method of the present invention can advantageously be used in gas chromatographic systems to improve sensitivity thereof by acting on column separation material.
    • 本发明提供一种用于消除来自气体样品本身或来自用于进行杂质测量的系统材料的干扰剂对待在气体样品中定量的杂质的干扰的色谱方法。 该方法有利地依赖于使用特别布置在GC系统中的另外的附加阀和另外的样品回路,以及通过另外的样品回路可操作地连接到系统的附加支撑气体入口,以向系统提供支撑气体,该支撑气体包括 至少预定活性气体的预定部分,其将与不需要的干扰杂质(如果有的话)反应,或与柱材料反应以抵消不想要的活性位点。 因此,本发明的方法可以有利地用于气相色谱系统中,以通过作用于柱分离材料来提高其敏感性。