公开(公告)号：US5553484A

公开(公告)日：1996-09-10

申请号：US439909

申请日：1995-05-12

申请人： William J. H. Bender ,  Gary D. DeLeo ,  Theodore N. Westlake, III ,  Emanuel L. Daigle ,  Carolyn W. Ribes

发明人： William J. H. Bender ,  Gary D. DeLeo ,  Theodore N. Westlake, III ,  Emanuel L. Daigle ,  Carolyn W. Ribes

IPC分类号： G01N1/34 ,  G01N1/40 ,  G01N1/10 ,  B01D15/00

CPC分类号： G01N1/34 ,  G01N2001/4016

摘要： A supported capillary membrane separator probe that uses multiple membrane tubes in a parallel configuration connected through common manifolds to the feed and return lines thus allowing greater carrier flow rates to and from the probe resulting in reduced sample lag time from the probe to its analyzer.

摘要翻译： 支撑的毛细管膜分离器探针，其使用以通过共同歧管连接到进料和返回管线的并联配置的多个膜管，从而允许更大的载流子流向和从探针导致从探针到其分析器的样品滞后时间。

公开(公告)号：US4806315A

公开(公告)日：1989-02-21

申请号：US69070

申请日：1987-07-02

申请人： Emanuel L. Daigle

发明人： Emanuel L. Daigle

IPC分类号： G01N30/34 ,  G01N30/66 ,  G01N30/02

CPC分类号： G01N30/66 ,  G01N30/34

摘要： The disclosure relates to improvements in the art of gas chromatography, and gas chromatographs containing a detector operated on the thermal conductivity principle. In the conventional gas chromatograph, a pair of resistance filaments constitutes an opposite arm of a Wheatstone bridge, and each of two pairs of filaments provides a reference side and a measuring side, respectively, across which a carrier gas can be flowed and the bridge balanced. A moisture-containing sample can be input and transported via carrier gas through a circuit to a substrate filled column and the moisture and other components of the sample separated according to their different affinities for the column substrate. The sample constituents elute from the column in characteristic sequence as elution bands diluted with carrier gas. The column effluent, in such system, can be flowed across the pair of resistance filaments constituting the measuring side of the bridge and the bridge unbalanced to create a bridge-inbalance signal which can be processed as output data indicative of the moisture contained in the sample. The present invention is based on the discovery that a constant and continuous amount of water vapor from an extraneous source can be added as via water vapor addition means to the carrier gas input to the system sufficient to suppress the normal tendency of the moisture contained in the sample to wet and adhere to gas chromatograph surfaces with which the moisture-containing sample is contacted.

摘要翻译： 本公开涉及气相色谱技术的改进，以及含有根据导热原理操作的检测器的气相色谱仪。 在常规气相色谱仪中，一对电阻丝构成了惠斯登电桥的相对臂，两对细丝中的每一根分别提供了参考侧和测量侧，载气可以通过该侧流动并且桥平衡 。 含水样品可以通过载气通过电路输入和输送到基板填充柱，并且样品的水分和其它组分根据它们对于柱基质的不同亲和力而分离。 样品成​​分以特征序列从柱中洗脱，作为用载气稀释的洗脱带。 这种系统中的柱流出物可以跨越构成桥的测量侧的一对电阻丝流动，并且桥不平衡以产生桥接不平衡信号，其可以被处理为指示样品中包含的水分的输出数据 。 本发明基于这样的发现：可以通过水蒸气添加装置将来自外来源的恒​​定和连续量的水蒸气加入到输入到系统的载气中，足以抑制包含在水中的水分的正常趋势 样品湿润并粘附到与含水样品接触的气相色谱仪表面。

公开(公告)号：US5269172A

公开(公告)日：1993-12-14

申请号：US808142

申请日：1991-12-16

申请人： Emanuel L. Daigle ,  John C. Watson

发明人： Emanuel L. Daigle ,  John C. Watson

IPC分类号： B65D90/22 ,  B65D90/50 ,  G01M3/20

CPC分类号： B65D90/501

摘要： A storage tank apparatus is described which comprises an above-ground storage tank having a first, lowermost bottom, a second bottom joined to the walls of the storage tank above the first, lowermost bottom and defining a space between the first and second bottoms, structural support means placed in the space between the first and second bottoms for supporting the second bottom above the first bottom, and a plurality of sampling ports spaced about the perimeter of the storage tank and permitting access to the space between the first and second bottoms and to the avenues for fluid communication provided therethrough by the structural support means. Processes for detecting leaks and avenues for leaks of materials placed in the storage tanks of such apparatus are also described.