Method for determining the presence of a chemical compound which is homogeneously distributed in a medium by means of cross-correlating a measuring spectrum with reference spectra

    公开(公告)号:AU2005266512A1

    公开(公告)日:2006-02-02

    申请号:AU2005266512

    申请日:2005-07-19

    Applicant: BASF AG

    Abstract: The present invention relates to a method for determining the identity or non-identity of at least one chemical compound V' homogeneous y distributed in a medium, by a) exposing the medium containing at least one homogeneously distributed chemical compound V' to analysis radiation with a variable wavelength lambda, and b) determining the spectral measurement function I'(lambda) with the aid of the absorbed, reflected, emitted and/or scattered radiation, wherein a correlation function K(deltalambda,c',c) is determined according to Equation I K ⁡ ( delta ⁢ ⁢ lambda , c ' , c ) = 1 / N . ∫ - ∞ + ∞ ⁢ I ' ⁡ ( lambda , c ' ) . I ⁡ ( lambda + delta ⁢ ⁢ lambda , c ) ⁢ ⁢ ⅆ lambda ( I ) in which K(deltalambda,c',c) denotes the correlation depending on the relative shift deltalambda of the functions I'(lambda,c') and I(lambda,c) and the concentrations c' and c of the at least one chemical compound V' and V, c' denotes the concentration of the at least one chemical compound V' homogeneously distributed in the medium, with a known or suspected identity, c denotes the concentration of the at least one chemical compound V homogeneously distributed in the medium, with a known identity, I'(lambda,c') denotes the measurement function of the at least one homogeneously distributed chemical compound V' in a medium containing the concentration c', I(lambda,c) denotes the comparison function of the at least one homogeneously distributed chemical compound V in a medium containing the concentration c, and N denotes a normalization factor and identity or non-identity between the compounds V and V' is determined with the aid of the correlation function K(deltalambda,c',c).

    CONCENTRADOS DE ADITIVOS PARA CARBURANTES Y LUBRICANTES, QUE CONTIENEN POR LO MENOS UN DERIVADO DE ANTRAQUINONA COMO SUSTANCIA MARCADORA

    公开(公告)号:PE20051059A1

    公开(公告)日:2006-01-20

    申请号:PE2005000012

    申请日:2005-01-03

    Applicant: BASF AG

    Abstract: ABARCANDO EL DERIVADO DE ANTRAQUINONA LOS COMPUESTOS DE FORMULA (I), DE FORMULA (II) Y DE FORMULA (III), DONDE: Z1 y Z2 SON H, HIDROXI, OR, NHR o NR2; R1 y R2 SON R o COR; X ES H, CIANO, NITRO, HIDROXI, OR, AMINO, NHR, R o CH(R9)(R10); n y m SON 0, 1, 2, 3 o 4, SIENDO PRECISO QUE CUANDO n o m SON MAYORES DE 1, LOS RADICALES R o X SEAN IGUALES O DIFERENTES; R9 y R10 SON CIANO, COOH o COOR; R3 a R8 SON H, R o NHR; y R ES ALQUILO C1-C20 OPCIONALMENTE INTERRUMPIDO POR 1 A 4 ATOMOS DE OXIGENO EN FUNCION DE ETER, CICLOALQUILO C5-C7 SUSTITUIDO POR UNO O VARIOS DE DICHO ALQUILO, UN RADICAL SATURADO HETEROCICLICO DE 5 o 6 MIEMBROS SUSTITUIDO POR UNO O VARIOS DE DICHO ALQUILO, ARILO C6-C10 SUSTITUIDO POR UNO O VARIOS HALOGENOS, CIANO, NITRO, HIDROXI, AMINO O DICHO ALQUILO TAMBIEN INTERRUMPIDO CON ALCOXI C1-C20, ALQUILAMINO C1-C20 o DIALQUILAMINO C1-20, HETEROARILO C3-C12 SUSTITUIDO POR UNO O VARIOS DE DICHO ALQUILO TAMBIEN INTERRUMPIDO CON ALCOXI C1-C20, ALQUILAMINO C1-C20 o DIALQUILAMINO C1-20, ARIL C6-C10-ALQUILO C1-C4 DONDE EL ARIL ES EL ANTES MENCIONADO, Y HETEROARILALQUILO C1-C4 CON C3-C12 EN EL ATOMO HETEROARILO SIMILAR AL ANTES MENCIONADO. LOS CONCENTRADOS SE UTILIZAN PARA LA ADITIVACION DE ACEITES MINERALES

    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
    20.
    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.

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