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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。
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公开(公告)号:US5082540A
公开(公告)日:1992-01-21
申请号:US610240
申请日:1990-05-07
IPC分类号: C04B35/553 , G01N27/333
CPC分类号: C04B35/553 , G01N27/333
摘要: A fluoride ion sensitive material suitable for use as the active component in a fluoride ion sensitive electrode comprises a sintered mixture comprising of up to 99.9 molar % of Lanthanum trifluoride and from 0.1 to 20 molar % Calcium difluoride formed from a body that has been pressed at 10.sup.7 Pa or more and then sintered in a inert atmosphere at 900.degree. C. or more.
摘要翻译: 适合用作氟离子敏感电极中的活性成分的氟离子敏感材料包括烧结混合物,其包含至多99.9摩尔%的三氟化镧和0.1至20摩尔%的二氧化硅,其被压制在 107Pa以上,然后在惰性气氛中在900℃以上烧结。
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