NEMATIC LIQUID CRYSTAL THIN FILMS FOR CHEMICAL VAPOR SENSING
    4.
    发明申请
    NEMATIC LIQUID CRYSTAL THIN FILMS FOR CHEMICAL VAPOR SENSING 审中-公开
    化学气相传感器的液体液晶薄膜

    公开(公告)号:US20140302612A1

    公开(公告)日:2014-10-09

    申请号:US14311373

    申请日:2014-06-23

    IPC分类号: G01N33/00

    摘要: A method of detecting an analyte by: providing a device having a substrate, an alignment layer on the substrate, and a film having 4-pentyl-4′-cyanobiphenyl on the alignment layer; exposing the film to air suspected of containing the analyte; measuring a change in a physical property of the film in response to exposing the film; measuring the kinetics of the change in the physical property; and correlating the kinetics to the concentration of the analyte, identification of the analyte, or both.

    摘要翻译: 通过以下方式检测分析物的方法:提供具有基板的装置,基板上的取向层,以及在取向层上具有4-戊基-4'-氰基联苯的膜; 将膜暴露于怀疑含有分析物的空气中; 响应于暴露所述膜而测量所述膜的物理性质的变化; 衡量物理性质变化的动力学; 并将动力学与分析物的浓度,分析物的鉴定或两者相关联。

    Analytical method and apparatus
    6.
    发明授权
    Analytical method and apparatus 失效
    分析方法和装置

    公开(公告)号:US08513022B2

    公开(公告)日:2013-08-20

    申请号:US12808634

    申请日:2008-12-18

    申请人: Fraser John Ross

    发明人: Fraser John Ross

    摘要: A method for determining the amount of a chemical species in a sample, in particular the amount of weak acid dissociable cyanide or total cyanide in a sample, and an apparatus for performing said method. The method comprises the steps of: i) treating the sample to liberate the chemical species into a gaseous stream; ii) directing the gaseous stream to a scrubber; iii) absorbing the chemical species into a scrubber solution; and iv) determining the amount of chemical species absorbed into the scrubber solution, wherein any remaining chemical species not absorbed into the scrubber solution is directed or recirculated to the scrubber in the gaseous stream and step iii) is repeated to increase absorption of the chemical species prior to performing step iv).

    摘要翻译: 用于确定样品中化学物质的量的方法,特别是样品中弱酸可离解氰化物或总氰化物的量以及用于执行所述方法的装置。 该方法包括以下步骤:i)处理样品以将化学物质释放成气流; ii)将气流引导至洗涤器; iii)将化学物质吸收到洗涤器溶液中; 以及iv)确定吸收到洗涤器溶液中的化学物质的量,其中未吸收到洗涤器溶液中的任何剩余化学物质被引导或再循环到气流中的洗涤器,并且重复步骤iii)以增加化学物质的吸收 在执行步骤iv)之前。

    ORGANOMETALLIC SENSOR DEVICE
    8.
    发明申请
    ORGANOMETALLIC SENSOR DEVICE 有权
    有机传感器设备

    公开(公告)号:US20100285602A1

    公开(公告)日:2010-11-11

    申请号:US12448415

    申请日:2007-12-21

    IPC分类号: G01N21/64 G01N31/00

    摘要: The present invention relates to detectors for detecting fluorine-containing compounds and/or cyanide containing compounds, including hydrogen fluoride (HF) or HCN gas, hydrofluoric acid in solution, selected chemical warfare agents, selected industrial chemicals which may be hydrolysed to release HF or HCN gas, compounds containing a cyanide group, and compounds that can release HF or HCN. The detectors comprise i) an organometallic component containing at least one bis-substituted boryl group of the formula —B(RB)(RB+) wherein each RB and each RB′ is independently selected from H, halogen, C1-6 alkyl, OR6, N(R6)(R7), SR6, C3-20 aryl or heteroaryl, and C3-20 cycloalkyl or heterocycloalkyl groups, each of which may be optionally substituted, ii) a Lewis base component, and iii) a solid matrix component. The invention also relates to novel organometallic compounds containing at least one bis-substituted boryl group and their use in detectors for fluorine containing compounds and/or cyanide containing compounds.

    摘要翻译: 本发明涉及用于检测含氟化合物和/或含氰化合物的检测器,包括氟化氢(HF)或HCN气体,溶液中的氢氟酸,选定的化学战剂,可被水解释放HF的选定工业化学品 HCN气体,含有氰化物的化合物和可以释放HF或HCN的化合物。 检测器包括i)包含式-B(RB)(RB +)的至少一个双取代硼基的有机金属组分,其中每个RB和每个RB'独立地选自H,卤素,C 1-6烷基,OR 6, N(R 6)(R 7),SR 6,C 3-20芳基或杂芳基,和C 3-20环烷基或杂环烷基,其各自可任选被取代,ii)路易斯碱组分,和iii)固体基质组分。 本发明还涉及含有至少一个双取代硼基的新型有机金属化合物及其在含氟化合物和/或含氰化合物的检测器中的用途。