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    Interpreting signals from an array of non-specific piezoelectric chemical sensors

    Slater, Jonathan and McAlernon, P.M. and Lowthian, P. and Appleton, M. (1996) Interpreting signals from an array of non-specific piezoelectric chemical sensors. Analyst 121 , pp. 743-774. ISSN 0003-2654.

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    Pattern recognition methods were tested using a gas sensor array consisting of eight interchangeable quartz crystals coated with different sorbent layers. The system is designed in such a way as to allow headspace sampling from a jar or vial. Using a two-sample t-test the two sampling methods were found to be significantly different at the 95% confidence level. It was found that the application of principal component analysis, multivariate analysis of variance and discriminant function analysis to the gradient of the initial responses and over-all response magnitudes allowed hexane, o-xylene, toluene, dodecane and tetradecane to be distinguished.


    Item Type: Article
    School: Birkbeck Faculties and Schools > Faculty of Science > School of Natural Sciences
    Depositing User: Sarah Hall
    Date Deposited: 14 May 2019 16:25
    Last Modified: 02 Aug 2023 17:51


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