Method for marking liquids with at least two marker substances and method for detecting them

    公开(公告)号:AU754193B2

    公开(公告)日:2002-11-07

    申请号:AU3815299

    申请日:1999-04-12

    Applicant: BASF AG

    Abstract: The present invention relates to a method of marking liquids using at least two markers, wherein said markers absorb in the 600-1200 nm region of the spectrum and reemit fluorescent light and the absorption range of at least one marker overlaps with the absorption range of at least one other marker.The present invention further relates to a method for detecting markers in liquids marked by the method of the invention, which comprises using light sources which emit radiation in the absorption ranges of said markers and detecting the fluorescent light reemitted by said markers, at least one of said light sources emitting radiation in the overlapping absorption range of at least one marker with that of at least one other marker and the number of light sources being less than or equal to the number of markers.The present invention further relates to liquids marked by the method of the invention.

    MARKING OF MINERAL OIL
    76.
    发明专利

    公开(公告)号:CA2431120A1

    公开(公告)日:2002-06-27

    申请号:CA2431120

    申请日:2001-12-19

    Applicant: BASF AG

    Abstract: The invention relates to a method for the marking of hydrocarbons, by additi on of at least one first marking agent( subsequently referred to as first marki ng agent), characterised in that, in addition, at least one further second marking agent is added to the hydrocarbon, which, under conditions for remov al of the first marking agent, is not completely removable from the hydrocarbon . The invention further relates to hydrocarbons which are to be marked by said method, solutions for marking hydrocarbons, containing at least one first marking agent and at least one second marking agent as defined by the method according to the invention and optionally containing further additives.

    METHOD FOR MARKING LIQUIDS WITH AT LEAST TWO MARKER SUBSTANCES AND METHOD FOR DETECTING THEM

    公开(公告)号:HU0102734A2

    公开(公告)日:2001-12-28

    申请号:HU0102734

    申请日:1999-04-12

    Applicant: BASF AG

    Abstract: The present invention relates to a method of marking liquids using at least two markers, wherein said markers absorb in the 600-1200 nm region of the spectrum and reemit fluorescent light and the absorption range of at least one marker overlaps with the absorption range of at least one other marker.The present invention further relates to a method for detecting markers in liquids marked by the method of the invention, which comprises using light sources which emit radiation in the absorption ranges of said markers and detecting the fluorescent light reemitted by said markers, at least one of said light sources emitting radiation in the overlapping absorption range of at least one marker with that of at least one other marker and the number of light sources being less than or equal to the number of markers.The present invention further relates to liquids marked by the method of the invention.

    METHOD FOR MARKING LIQUIDS WITH AT LEAST TWO MARKER SUBSTANCES AND METHOD FOR DETECTING THEM

    公开(公告)号:PL344017A1

    公开(公告)日:2001-09-24

    申请号:PL34401799

    申请日:1999-04-12

    Applicant: BASF AG

    Abstract: The present invention relates to a method of marking liquids using at least two markers, wherein said markers absorb in the 600-1200 nm region of the spectrum and reemit fluorescent light and the absorption range of at least one marker overlaps with the absorption range of at least one other marker.The present invention further relates to a method for detecting markers in liquids marked by the method of the invention, which comprises using light sources which emit radiation in the absorption ranges of said markers and detecting the fluorescent light reemitted by said markers, at least one of said light sources emitting radiation in the overlapping absorption range of at least one marker with that of at least one other marker and the number of light sources being less than or equal to the number of markers.The present invention further relates to liquids marked by the method of the invention.

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