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热词
    • 10. 发明授权
    • Method of identifying a surface
    • 识别表面的方法
    • US5811152A
    • 1998-09-22
    • US762834
    • 1996-12-10
    • Michael Cleary
    • Michael Cleary
    • G09F3/00G08B15/00G08B15/02
    • G09F3/00
    • A method for identifying a surface in which a plurality of trace material is used to establish a database in which a unique combination of trace materials is assigned to a unique source. A composition is formulated containing the unique combination together with an indicator material and a solvent system, the solvent system including a solvent which is volatile under conditions of application. This composition is applied to a surface and the solvent permitted to evaporate, after which the composition is detected on the basis of the indicator material and each of the plurality of trace materials is identified. The unique source can then be determined from the database.
    • 用于识别表面的方法,其中使用多个迹线材料来建立数据库,其中将唯一的迹线材料组合分配给唯一的源。 将组合物与指示剂材料和溶剂体系一起配制成独特的组合物,溶剂体系包括在施用条件下挥发的溶剂。 将该组合物施用于表面,允许溶剂蒸发,之后基于指示剂材料检测组合物,并鉴定出多种痕量物质。 然后可以从数据库确定唯一的来源。