21.
    发明专利
    未知

    公开(公告)号:DE59409400D1

    公开(公告)日:2000-07-20

    申请号:DE59409400

    申请日:1994-08-25

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP94/02824 Sec. 371 Date Mar. 4, 1996 Sec. 102(e) Date Mar. 4, 1996 PCT Filed Aug. 25, 1994 PCT Pub. No. WO95/07460 PCT Pub. Date Mar. 16, 1995A method for detecting naphthylamines which are present as tracers in mineral oils, wherein the naphthylamine is extracted by treating the mineral oil with an aqueous medium, and is coupled in the aqueous phase with a diazonium salt to form an azo dye, the use of specific naphthylamines as tracers in mineral oils and mineral oils containing these specific naphthylamines.

    29.
    发明专利
    未知

    公开(公告)号:DK0716743T3

    公开(公告)日:2000-07-31

    申请号:DK94927502

    申请日:1994-08-25

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP94/02824 Sec. 371 Date Mar. 4, 1996 Sec. 102(e) Date Mar. 4, 1996 PCT Filed Aug. 25, 1994 PCT Pub. No. WO95/07460 PCT Pub. Date Mar. 16, 1995A method for detecting naphthylamines which are present as tracers in mineral oils, wherein the naphthylamine is extracted by treating the mineral oil with an aqueous medium, and is coupled in the aqueous phase with a diazonium salt to form an azo dye, the use of specific naphthylamines as tracers in mineral oils and mineral oils containing these specific naphthylamines.

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