Method for measuring the concentration of water in argon, hydrogen, nitrogen and helium by ionization mobility spectrometry
    1.
    发明授权
    Method for measuring the concentration of water in argon, hydrogen, nitrogen and helium by ionization mobility spectrometry 失效
    通过电离迁移谱测量氩,氢,氮和氦中水分浓度的方法

    公开(公告)号:US06895339B2

    公开(公告)日:2005-05-17

    申请号:US10722190

    申请日:2003-11-25

    CPC分类号: G01N27/622

    摘要: A method is provided for measuring by ionization mobility spectrometry (IMS) relatively high concentrations of water in argon, hydrogen, nitrogen and/or helium, including the following steps: (a) introducing the gas to be analyzed into an IMS instrument with a counter-flow of pure gas; (b) obtaining a signal variable over time and proportional to the number of ions detected by an ion detector of the IMS instrument; (c) determining two time intervals (A, B) corresponding to the drift times in the IMS instrument of the H3O+ and (H2O)2+ ions; (d) obtaining the peaks of the signal in the two determined time intervals (A, B); and (e) calculating the water concentration in the gas to be analyzed according to the ratio between the intensity of the two peaks obtained in the signal.

    摘要翻译: 提供了一种用于通过电离移动光谱法(IMS)在氩气,氢气,氮气和/或氦气中相对高浓度的水进行测量的方法,包括以下步骤:(a)将待分析的气体引入具有计数器的IMS仪器 纯净气体流; (b)随时间获得信号变量并与由IMS仪器的离子检测器检测到的离子数成比例; (c)确定对应于IMS 3仪器中的漂移时间的两个时间间隔(A,B)和(H 2< 2> SUB> O)2 + + / - >离子; (d)在两个确定的时间间隔(A,B)中获得信号的峰值; 和(e)根据在信号中获得的两个峰的强度之间的比率计算待分析气体中的水分浓度。

    Method for carrying out ion mobility spectrometry analyses
    4.
    发明授权
    Method for carrying out ion mobility spectrometry analyses 失效
    进行离子迁移光谱分析的方法

    公开(公告)号:US07260484B2

    公开(公告)日:2007-08-21

    申请号:US11040076

    申请日:2005-01-21

    IPC分类号: G01N27/64

    摘要: A method for carrying out analyses of a gas comprising one or more species Si, Sj, . . . , Sn by using of ion mobility spectrometry includes in carrying out two subsequent analyses in different conditions and comparing the results of these two analyses. The different conditions in the two analyses are such as to modify either the residence time of the ions corresponding to the species in the reaction zone or in the drift zone of the ion mobility spectrometer, or, selectively, the concentration of at least one of these ions.

    摘要翻译: 一种用于对包含一种或多种物质S 1,S 3,J 3的气体进行分析的方法。 。 。 通过使用离子迁移率光谱测定法,包括在不同条件下进行两次后续分析并比较这两种分析的结果。 这两个分析中的不同条件是改变对应于离子迁移谱仪的反应区或漂移区中的物质的离子的停留时间,或者选择性地改变这些中的至少一种的浓度 离子。

    Method for carrying out ion mobility spectrometry analyses
    5.
    发明申请
    Method for carrying out ion mobility spectrometry analyses 失效
    进行离子迁移光谱分析的方法

    公开(公告)号:US20050178957A1

    公开(公告)日:2005-08-18

    申请号:US11040076

    申请日:2005-01-21

    IPC分类号: G01N27/64 H01J49/00

    摘要: A method for carrying out analyses of a gas comprising one or more species Si, Sj, . . . , Sn by using of ion mobility spectrometry includes in carrying out two subsequent analyses in different conditions and comparing the results of these two analyses. The different conditions in the two analyses are such as to modify either the residence time of the ions corresponding to the species in the reaction zone or in the drift zone of the ion mobility spectrometer, or, selectively, the concentration of at least one of these ions.

    摘要翻译: 一种用于对包含一种或多种物质S 1,S 3,J 3的气体进行分析的方法。 。 。 通过使用离子迁移率光谱测定法,包括在不同条件下进行两次随后的分析并比较这两个分析的结果。 这两个分析中的不同条件是改变对应于离子迁移谱仪的反应区或漂移区中的物质的离子的停留时间,或者选择性地改变这些中的至少一种的浓度 离子。

    Method for measuring total concentration of carbon monoxide and hydrocarbons in oxygen by ion mobility spectrometry
    6.
    发明授权
    Method for measuring total concentration of carbon monoxide and hydrocarbons in oxygen by ion mobility spectrometry 失效
    通过离子迁移谱测量氧气中一氧化碳和碳氢化合物的总浓度的方法

    公开(公告)号:US06770873B2

    公开(公告)日:2004-08-03

    申请号:US10454878

    申请日:2003-06-05

    IPC分类号: H01J4940

    摘要: A method is provided for the quantitative analysis by ion mobility spectrometry of the concentration of carbon monoxide, methane and higher hydrocarbon species in an oxygen stream. The method includes converting these species present in the oxygen stream into carbon dioxide, measuring the concentration of the carbon dioxide, and deducing from this measurement the initial concentration of the oxidizable species.

    摘要翻译: 提供了一种通过离子迁移光谱法测定氧气流中一氧化碳,甲烷和高级烃类物质浓度进行定量分析的方法。 该方法包括将氧流中存在的物质转化为二氧化碳,测量二氧化碳的浓度,并从该测量中推断可氧化物质的初始浓度。

    Fumes Treatment System
    7.
    发明申请
    Fumes Treatment System 审中-公开
    烟气处理系统

    公开(公告)号:US20080209898A1

    公开(公告)日:2008-09-04

    申请号:US11911218

    申请日:2007-02-14

    IPC分类号: F01N3/021

    摘要: A fumes treatment system is provided for exhaust gases of internal combustion engines, for example. The system includes a housing inside which a series of elements are provided for intercepting the flow of fumes. The elements are such that they do not completely take up the internal cross-section of the housing and are provided with or leave such discontinuities as to create a tortuous path for the fumes to be treated.

    摘要翻译: 例如,为内燃机的废气提供烟气处理系统。 该系统包括壳体,在该壳体内设有一系列元件用于拦截烟雾流。 这些元件使得它们不完全占据壳体的内部横截面,并且具有或留下这样的不连续性,以便为待处理的烟雾产生曲折的路径。

    Gases and the ensurance of extremely low levels of hydrogen
    9.
    发明授权
    Gases and the ensurance of extremely low levels of hydrogen 失效
    气体和极低水平氢气的保证

    公开(公告)号:US5968468A

    公开(公告)日:1999-10-19

    申请号:US944032

    申请日:1997-09-23

    摘要: An apparatus is described for the removal of impurity gases such as O.sub.2, CH.sub.4, CO, CO.sub.2 and H.sub.2 from impure inert gases such as rare gases and N.sub.2. The apparatus comprises an impure inert gas inlet, a housing containing first and second gas sorbing materials and a purified gas outlet. The first gas sorbing material may be a Zr--V--Fe getter alloy if the gas to be purified is a rare gas, whereas it may be a Zr--Fe alloy if the gas to be purified is N.sub.2. The second gas sorbing material is a Zr--Al alloy which ensures that the purified inert gas has an extremely low level of hydrogen. A process for the removal of impurity gases from inert gases and ensuring an extremely low level of hydrogen in the purified gas is also described.

    摘要翻译: 描述了用于从诸如稀有气体和N 2等不纯的惰性气体中除去诸如O 2,CH 4,CO,CO 2和H 2的杂质气体的装置。 该装置包括不纯的惰性气体入口,包含第一和第二气体吸附材料的壳体和净化的气体出口。 如果要净化的气体是稀有气体,则第一种气体吸附材料可以是Zr-V-Fe吸气剂合金,而如果要净化的气体为N2,则可以是Zr-Fe合金。 第二气体吸附材料是Zr-Al合金,其确保纯化的惰性气体具有极低的氢气水平。 还描述了从惰性气体中除去杂质气体并确保净化气体中极低水平的氢气的方法。