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    Quick acting toxic ammonia test for aqueous samples
    83.
    发明授权
    Quick acting toxic ammonia test for aqueous samples 失效
    水样品快速有毒氨试验

    公开(公告)号：US07033839B1

    公开(公告)日：2006-04-25

    申请号：US09268930

    申请日：1999-03-16

    申请人： Lydia J. Dobler ,  Jean M. Gibbons ,  Vladimir Yu Evtodienko

    发明人： Lydia J. Dobler ,  Jean M. Gibbons ,  Vladimir Yu Evtodienko

    IPC分类号： G01N33/19 ,  G01N31/22

    CPC分类号： G01N31/22 ,  G01N31/223 ,  G01N31/224 ,  G01N33/0054 ,  Y02A50/246 ,  Y10T436/175383

    摘要： A method, test reagent and device usable as a test strip for detecting toxic ammonia levels in water samples such as aquarium water. The volume of the water to be tested contacted with a soda lime reagent to raise the pH to at least 10, and simultaneously contacted with a hydrophobic barrier membrane capable of allowing only ammonia gas to pass through. The membrane is coated with a pH chromogenic indicator mixture which changes color if ammonia gas passes through. The color response of the sample is compared with standard color charts to determine the toxic ammonia potential.

    摘要翻译： 可用作检测水样中的有毒氨水平的试纸的方法，试剂和试剂。 待测试的水的体积与钠钙试剂接触以将pH升高至至少10，并且同时与仅允许氨气通过的疏水屏障膜接触。 涂覆有pH显色指示剂混合物，如果氨气通过，混合物会变色。 将样品的颜色响应与标准色谱图进行比较，以确定有毒氨水势。

    Ammonia sensor
    86.
    发明申请
    Ammonia sensor 有权
    氨传感器

    公开(公告)号：US20040132202A1

    公开(公告)日：2004-07-08

    申请号：US10669660

    申请日：2003-09-25

    申请人： NGK SPARK PLUG CO., LTD.

    发明人： Hiroyuki Nishiyama ,  Shiro Kakimoto ,  Ryuji Inoue ,  Hitoshi Yokoi ,  Noboru Ishida ,  Takafumi Oshima ,  Satoshi Sugaya ,  Koichi Imaeda ,  Tadashi Hattori ,  Atsushi Satsuma

    IPC分类号： G01N033/00

    CPC分类号： G01N33/0054 ,  G01N27/4075 ,  Y02A50/246 ,  Y10T436/173845 ,  Y10T436/175383 ,  Y10T436/25875

    摘要： In an ammonia sensor (1), lead portions (7) and (9) are provided on an insulating substrate (5); a pair of comb-shaped electrodes (11) and (13) are connected to the lead portions (7) and (9), respectively; a sensitive layer (15) is provided on the comb-shaped electrodes (11) and (13); and a protective layer (17) is provided on the sensitive layer (15). Particularly, the sensitive layer (15) is formed of a gas-sensitive raw material predominantly containing ZrO2 and containing at least W in an amount of 2 to 40 wt. % as reduced to WO3.

    摘要翻译： 在氨传感器（1）中，引线部分（7）和（9）设置在绝缘基板（5）上; 一对梳状电极（11）和（13）分别连接到引线部分（7）和（9）; 敏感层（15）设置在梳状电极（11）和（13）上; 并且在敏感层（15）上设置保护层（17）。 特别地，敏感层（15）由主要含有ZrO 2并至少含有W为2〜40重量％的气敏原料形成。 ％降低到WO3。

    Ammonia gas sensors
    87.
    发明申请
    Ammonia gas sensors 有权
    氨气传感器

    公开(公告)号：US20040118703A1

    公开(公告)日：2004-06-24

    申请号：US10734018

    申请日：2003-12-11

    发明人： Da Yu Wang ,  Walter T. Symons ,  Robert J. Farhat ,  Carlos A. Valdes ,  Elizabeth M. Briggs ,  Kaius K. Polikarpus ,  Joachim Kupe

    IPC分类号： G01N027/26

    CPC分类号： G01N33/0054 ,  G01N27/4074 ,  Y02A50/246

    摘要： One embodiment of an ammonia gas sensor includes: a reference electrode, an ammonia selective sensing electrode and an electrolyte disposed therebetween. The sensing electrode comprises the reaction product of a main material selected from the group consisting of vanadium, tungsten, molybdenum, vanadium oxides, tungsten oxides, molybdenum oxides, and combinations comprising at least one of the foregoing main materials, and an electrically conducting material selected from the group consisting of electrically conductive metals, electrically conductive metal oxides, and combinations comprising at least one of the foregoing.

    摘要翻译： 氨气传感器的一个实施例包括：参比电极，氨选择性感测电极和设置在其间的电解质。 感测电极包括选自钒，钨，钼，氧化钒，氧化钨，氧化钼以及包含至少一种前述主要材料的组合的主要材料的反应产物和选择的导电材料 来自由导电金属，导电金属氧化物组成的组，以及包含前述的至少一种的组合。

    Apparatus for measuring concentration of ammonia gas
    88.
    发明申请
    Apparatus for measuring concentration of ammonia gas 审中-公开
    用于测量氨气浓度的装置

    公开(公告)号：US20030062264A1

    公开(公告)日：2003-04-03

    申请号：US10237877

    申请日：2002-09-10

    申请人： NGK SPARK PLUG CO., LTD.

    发明人： Shoji Kitanoya ,  Noboru Ishida

    IPC分类号： G01N027/26

    CPC分类号： G01N33/0054 ,  Y02A50/246

    摘要： An apparatus for measuring the concentration of ammonia gas, including a solid electrolyte body having oxygen ion conductivity, a reference electrode formed on a first inner surface of the solid electrolyte body and contacting a reference gas, a detecting electrode formed on a second outer surface of the solid electrolyte body and containing a noble metal and/or a metal oxide therein, a Pd catalyst layer formed on an outer surface of the detecting electrode and including a Pd-containing porous body, and a heater element for heating the solid electrolyte body.

    摘要翻译： 一种用于测量包括具有氧离子传导性的固体电解质体的氨气浓度的装置，形成在固体电解质体的第一内表面上并与参考气体接触的参考电极，形成在第二外表面上的检测电极 所述固体电解质体中含有贵金属和/或金属氧化物，形成在所述检测电极的外表面上并包含含Pd多孔体的Pd催化剂层和用于加热所述固体电解质体的加热元件。

    Detection of Helicobacter pylori
    89.
    发明授权
    Detection of Helicobacter pylori 有权
    检测幽门螺杆菌

    公开(公告)号：US06509169B2

    公开(公告)日：2003-01-21

    申请号：US09903902

    申请日：2001-07-12

    申请人： Norman M. Ratcliffe ,  Clive Teare ,  Christopher Dunn ,  David C. Cowell ,  Caroline Penault ,  Paul Chambers ,  Murdo M. Black

    发明人： Norman M. Ratcliffe ,  Clive Teare ,  Christopher Dunn ,  David C. Cowell ,  Caroline Penault ,  Paul Chambers ,  Murdo M. Black

    IPC分类号： C12Q104

    CPC分类号： A61B5/4216 ,  A61B5/097 ,  G01N27/12 ,  G01N33/0054 ,  G01N33/497 ,  Y02A50/246

    摘要： A method for detecting Helicobacter pylori in a subject's gastroenteral tract involves measuring a change in resistance of an electronic or electrochemical sensor, notably a polypyrrole film, on exposure to gas from the subject's lungs and/or stomach. Depending on the magnitude of the change (if any) a positive or negative result is indicated visually by electronics means. Two sensors are used, one of which receives a sample of gas which has passed through an amonia-absorbing means to provide a corrected baseline value for the ammonia. The invention also provides apparatus suitable for carrying out the method.

    摘要翻译： 用于检测受试者胃肠道中的幽门螺杆菌的方法包括在暴露于来自受试者的肺和/或胃的气体时测量电子或电化学传感器，特别是聚吡咯膜的电阻变化。 根据变化的大小（如果有的话），电子手段可以直观地指出正或负的结果。 使用两个传感器，其中一个接收已经通过氨基酸吸收装置的气体样品，以提供校正的氨的基准值。 本发明还提供适用于实施该方法的设备。

    Electrical measuring cell for determinging ammonia, amines, hydrazine amines, hydrazine and hydrazine derivatives
    90.
    发明授权
    Electrical measuring cell for determinging ammonia, amines, hydrazine amines, hydrazine and hydrazine derivatives 失效
    用于测定氨，胺，肼和肼衍生物的电化学测量池

    公开(公告)号：US5344546A

    公开(公告)日：1994-09-06

    申请号：US19764

    申请日：1993-02-19

    申请人： Herbert Kiesele ,  Stephan Haupt ,  Uwe Kuhn

    发明人： Herbert Kiesele ,  Stephan Haupt ,  Uwe Kuhn

    IPC分类号： G01N27/49 ,  G01N33/00 ,  G01N27/404

    CPC分类号： G01N27/4045 ,  G01N33/0054

    摘要： The invention is directed to an electrochemical cell for measuring ammonia, amines, hydrazine and hydrazine derivatives and includes a measuring electrode in an electrolyte. The measuring electrode is provided with a coating made of a transition metal oxide and is improved in that its measuring sensitivity during long-term loading is increased. The cross sensitivity of the measuring cell is reduced especially with respect to NO.sub.2 and SO.sub.2. For this purpose, the oxide constituents of the coating are made of a metal conducting oxide of one element or an oxide mixture of several elements of the platinum metal group. Oxides of ruthenium and iridium have proven especially useful. The invention is also directed to an electrochemical measuring cell for measuring ammonia or hydrazine and includes at least a measuring electrode and a counter electrode in an electrolyte. The measuring cell provides a signal increase having a shorter response time and an improved signal stability. For this purpose, the electrolyte is an aqueous solution of a hygroscopic salt of an alkali metal or alkaline earth metal such as calcium nitrate or lithium nitrate or a mixture of both salts.

    摘要翻译： 本发明涉及用于测量氨，胺，肼和肼衍生物的电化学电池，并且在电解质中包括测量电极。 测量电极设置有由过渡金属氧化物制成的涂层，并且改进了其在长期负载期间的测量灵敏度增加。 测量池的交叉灵敏度特别是相对于NO2和SO2而降低。 为此，涂层的氧化物组分由一种元素的金属导电氧化物或铂金属基团的若干元素的氧化物混合物制成。 钌和铱的氧化物被证明是特别有用的。 本发明还涉及一种用于测量氨或肼的电化学测量池，并且在电解质中至少包括测量电极和对电极。 测量单元提供具有较短响应时间和改进的信号稳定性的信号增加。 为此，电解质是碱金属或碱土金属的吸湿盐如硝酸钙或硝酸锂或这两种盐的混合物的水溶液。