DE19818176A1 - Verfahren zur Markierung von Flüssigkeiten mit mindestens zwei Markierstoffen und Verfahren zu deren Detektion - Google Patents

Verfahren zur Markierung von Flüssigkeiten mit mindestens zwei Markierstoffen und Verfahren zu deren Detektion

Info

Publication number
DE19818176A1
DE19818176A1 DE19818176A DE19818176A DE19818176A1 DE 19818176 A1 DE19818176 A1 DE 19818176A1 DE 19818176 A DE19818176 A DE 19818176A DE 19818176 A DE19818176 A DE 19818176A DE 19818176 A1 DE19818176 A1 DE 19818176A1
Authority
DE
Germany
Prior art keywords
markers
radiation
marker
excitation
marking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19818176A
Other languages
German (de)
English (en)
Inventor
Frank Meyer
Gerhard Wagenblast
Karin Heidrun Beck
Christos Vamvakaris
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Priority to DE19818176A priority Critical patent/DE19818176A1/de
Priority to PCT/EP1999/002451 priority patent/WO1999056125A1/de
Priority to PT99920643T priority patent/PT1082610E/pt
Priority to SK1486-2000A priority patent/SK286179B6/sk
Priority to DE59914509T priority patent/DE59914509D1/de
Priority to US09/673,736 priority patent/US6312958B1/en
Priority to EP99920643A priority patent/EP1082610B1/de
Priority to ES99920643T priority patent/ES2293723T3/es
Priority to EA200001093A priority patent/EA002413B1/ru
Priority to CZ20003909A priority patent/CZ300963B6/cs
Priority to EEP200000612A priority patent/EE04508B1/xx
Priority to CNB998078581A priority patent/CN1145794C/zh
Priority to PL344017A priority patent/PL193266B1/pl
Priority to KR1020007011759A priority patent/KR100609673B1/ko
Priority to IL13884599A priority patent/IL138845A/en
Priority to GEAP19995641A priority patent/GEP20033105B/en
Priority to CA002329221A priority patent/CA2329221C/en
Priority to BRPI9909817-2A priority patent/BR9909817B1/pt
Priority to AU38152/99A priority patent/AU754193B2/en
Priority to JP2000546235A priority patent/JP4316804B2/ja
Priority to HU0102734A priority patent/HUP0102734A3/hu
Priority to NZ508195A priority patent/NZ508195A/en
Priority to AT99920643T priority patent/ATE373822T1/de
Priority to TR2000/03066T priority patent/TR200003066T2/xx
Priority to PE1999000333A priority patent/PE20000447A1/es
Priority to MYPI99001566A priority patent/MY121841A/en
Priority to ARP990101865A priority patent/AR015278A1/es
Priority to CO99024390A priority patent/CO5090894A1/es
Priority to TW088106444A priority patent/TW503315B/zh
Publication of DE19818176A1 publication Critical patent/DE19818176A1/de
Priority to UA2000116627A priority patent/UA66381C2/uk
Priority to MXPA00009804 priority patent/MXPA00009804A/es
Priority to NO20005280A priority patent/NO20005280L/no
Priority to BG104951A priority patent/BG65287B1/bg
Priority to ZA200006828A priority patent/ZA200006828B/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/26—Oils; Viscous liquids; Paints; Inks
    • G01N33/28—Oils, i.e. hydrocarbon liquids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
    • G01N21/643—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" non-biological material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/003—Marking, e.g. coloration by addition of pigments
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
    • G01N2021/6439—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" with indicators, stains, dyes, tags, labels, marks
    • G01N2021/6441—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" with indicators, stains, dyes, tags, labels, marks with two or more labels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/13—Tracers or tags
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/21—Hydrocarbon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Immunology (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Organic Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Paints Or Removers (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Detergent Compositions (AREA)
DE19818176A 1919-04-23 1998-04-23 Verfahren zur Markierung von Flüssigkeiten mit mindestens zwei Markierstoffen und Verfahren zu deren Detektion Withdrawn DE19818176A1 (de)

Priority Applications (34)

Application Number Priority Date Filing Date Title
DE19818176A DE19818176A1 (de) 1998-04-23 1998-04-23 Verfahren zur Markierung von Flüssigkeiten mit mindestens zwei Markierstoffen und Verfahren zu deren Detektion
AU38152/99A AU754193B2 (en) 1998-04-23 1999-04-12 Method for marking liquids with at least two marker substances and method for detecting them
BRPI9909817-2A BR9909817B1 (pt) 1998-04-23 1999-04-12 processo para marcar lìquidos, e, processo para detectar marcadores em lìquidos.
SK1486-2000A SK286179B6 (sk) 1998-04-23 1999-04-12 Spôsob detekcie značkovačov v uhľovodíkoch a uhľovodíkových zmesiach
DE59914509T DE59914509D1 (de) 1998-04-23 1999-04-12 Verfahren zur detektion von markierstoffen in kohlenwasserstoffen und kohlenwasserstoffgemischen
US09/673,736 US6312958B1 (en) 1919-04-23 1999-04-12 Method for marking liquids with at least two marker substances and method for detecting them
EP99920643A EP1082610B1 (de) 1998-04-23 1999-04-12 Verfahren zur detektion von markierstoffen in kohlenwasserstoffen und kohlenwasserstoffgemischen
ES99920643T ES2293723T3 (es) 1998-04-23 1999-04-12 Procedimiento para la deteccion de substancias de marcaje en hidrocarburos y mezclas de hidrocarburos.
EA200001093A EA002413B1 (ru) 1998-04-23 1999-04-12 Способ маркировки жидкостей, по крайней мере, двумя маркерными веществами и способ их детекции
CZ20003909A CZ300963B6 (cs) 1998-04-23 1999-04-12 Zpusob detekce znacení uhlovodíku a smesí uhlovodíku
EEP200000612A EE04508B1 (et) 1998-04-23 1999-04-12 Meetod süsivesinike ja süsivesiniksegude markeerimiseks vähemalt kahe markeriga, markerite tuvastamismeetod ning markeeritud süsivesinikud ja süsivesiniksegud
CNB998078581A CN1145794C (zh) 1998-04-23 1999-04-12 用至少两种标记物标记烃或烃混合物的方法以及检测它们的方法
PL344017A PL193266B1 (pl) 1998-04-23 1999-04-12 Sposób znakowania węglowodorów i mieszanin węglowodorów oraz sposób wykrywania znaczników w węglowodorach i mieszaninach węglowodorów
KR1020007011759A KR100609673B1 (ko) 1998-04-23 1999-04-12 2 이상의 표지물로 액체를 표지하는 방법 및 그 검출 방법
IL13884599A IL138845A (en) 1998-04-23 1999-04-12 A method of marking liquids with at least two markers and a method of identification
GEAP19995641A GEP20033105B (en) 1998-04-23 1999-04-12 Method for Marking Liquids and Their Compounds and Method for Detecting Them
CA002329221A CA2329221C (en) 1998-04-23 1999-04-12 Method for marking liquids with at least two marker substances and method for detecting them
PCT/EP1999/002451 WO1999056125A1 (de) 1998-04-23 1999-04-12 Verfahren zur markierung von flüssigkeiten mit mindestens zwei markierstoffen und verfahren zu deren detektion
PT99920643T PT1082610E (pt) 1998-04-23 1999-04-12 Processo para a marcação de líquidos com pelo menos duas substâncias marcadoras e processo para a sua detecção
JP2000546235A JP4316804B2 (ja) 1998-04-23 1999-04-12 少なくとも２種のマーカー物質を用いる液体のマーキング法及びその検出法
HU0102734A HUP0102734A3 (en) 1998-04-23 1999-04-12 Method for marking liquids with at least two marker substances and method for detecting them
NZ508195A NZ508195A (en) 1998-04-23 1999-04-12 At least two markers that absorb in the 600-1200 nm spectrum region and re-emit fluorescent light for marking liquids
AT99920643T ATE373822T1 (de) 1998-04-23 1999-04-12 Verfahren zur detektion von markierstoffen in kohlenwasserstoffen und kohlenwasserstoffgemischen
TR2000/03066T TR200003066T2 (tr) 1998-04-23 1999-04-12 Sıvıların iki markalama maddesiyle markalanmaları yöntemi
PE1999000333A PE20000447A1 (es) 1998-04-23 1999-04-20 Procedimiento para la marcacion de liquidos con por lo menos dos sustancias marcadoras y procedimiento para su deteccion
MYPI99001566A MY121841A (en) 1998-04-23 1999-04-21 Method for marking liquids with at least two marker substances and method for detecting them.
ARP990101865A AR015278A1 (es) 1998-04-23 1999-04-22 PROCEDIMIENTO PARA LA MARCACIoN DE LíQUIDOS CON POR LO MENOS DOS SUSTANCIAS MARCADORAS Y PROCEDIMIENTO PARA LA DETECCIoN DE DICHAS SUSTANCIAS MARCADORAS EN LíQUIDOS.
CO99024390A CO5090894A1 (es) 1998-04-23 1999-04-22 Procedimiento para la marcacion de liquidos empleando al menos dos sustancias marcadoras diferentes que absorben en la zona espectral de 600 a 1200 nm.
TW088106444A TW503315B (en) 1998-04-23 1999-04-22 Marking of liquids with at least two markers and detection thereof
UA2000116627A UA66381C2 (en) 1998-04-23 1999-12-04 Method for marking liquids with at least two marker substances; method for detecting marker substances
MXPA00009804 MXPA00009804A (es) 1998-04-23 2000-10-06 Procedimiento para la marcacion de liquidos con por lo menos dos sustancias marcadoras y procedimiento para su deteccion
NO20005280A NO20005280L (no) 1998-04-23 2000-10-20 Fremgangsmate for markering av vaesker med minst to markor-substanser og metode for pavisning av dem
BG104951A BG65287B1 (bg) 1998-04-23 2000-11-15 Метод за маркиране на въглеводороди и смеси от въглеводороди с най-малко две маркиращи вещества и метод за тяхното детектиране
ZA200006828A ZA200006828B (en) 1998-04-23 2000-11-22 Method for marking liquids with at least two marker substances and method for detecting them.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19818176A DE19818176A1 (de) 1998-04-23 1998-04-23 Verfahren zur Markierung von Flüssigkeiten mit mindestens zwei Markierstoffen und Verfahren zu deren Detektion

Publications (1)

Publication Number Publication Date
DE19818176A1 true DE19818176A1 (de) 1999-10-28

Family

ID=7865573

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19818176A Withdrawn DE19818176A1 (de) 1919-04-23 1998-04-23 Verfahren zur Markierung von Flüssigkeiten mit mindestens zwei Markierstoffen und Verfahren zu deren Detektion
DE59914509T Expired - Lifetime DE59914509D1 (de) 1998-04-23 1999-04-12 Verfahren zur detektion von markierstoffen in kohlenwasserstoffen und kohlenwasserstoffgemischen

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE59914509T Expired - Lifetime DE59914509D1 (de) 1998-04-23 1999-04-12 Verfahren zur detektion von markierstoffen in kohlenwasserstoffen und kohlenwasserstoffgemischen

Country Status (33)

Country Link
US (1) US6312958B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP1082610B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JP4316804B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
KR (1) KR100609673B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CN (1) CN1145794C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AR (1) AR015278A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) ATE373822T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AU (1) AU754193B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BG (1) BG65287B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BR (1) BR9909817B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA2329221C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CO (1) CO5090894A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CZ (1) CZ300963B6 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (2) DE19818176A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EA (1) EA002413B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EE (1) EE04508B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES2293723T3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GE (1) GEP20033105B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
HU (1) HUP0102734A3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IL (1) IL138845A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
MX (1) MXPA00009804A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
MY (1) MY121841A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NO (1) NO20005280L (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NZ (1) NZ508195A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
PE (1) PE20000447A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
PL (1) PL193266B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
PT (1) PT1082610E (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SK (1) SK286179B6 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
TR (1) TR200003066T2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
TW (1) TW503315B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
UA (1) UA66381C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
WO (1) WO1999056125A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ZA (1) ZA200006828B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009065789A1 (de) * 2007-11-21 2009-05-28 Basf Se Deuterierung von markierstoffen
WO2011032857A2 (de) 2009-09-15 2011-03-24 Basf Se Verwendung von derivaten aromatischer verbindungen als markierstoffe für flüssigkeiten
DE102017221187A1 (de) * 2017-11-27 2019-05-29 Carl Zeiss Meditec Ag Verfahren zur Bestimmung der Konzentration von verschiedenen, in einem Objekt enthaltenen Fluoreszenzemittern und Mikroskopiesystem
DE102022130251A1 (de) * 2022-11-16 2024-05-16 Carl Zeiss Microscopy Gmbh Mikroskopanordnung und Verfahren zur Untersuchung einer mit mehreren Farbstoffen gefärbten Probe

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US6558626B1 (en) * 2000-10-17 2003-05-06 Nomadics, Inc. Vapor sensing instrument for ultra trace chemical detection
DE10063955A1 (de) * 2000-12-20 2002-07-04 Basf Ag Verfahren zur Markierung von Mineralöl
MXPA01011530A (es) * 2001-06-04 2004-04-21 Uziel Ben Itzhak Metodo y sistema para marcar un liquido.
US6811575B2 (en) * 2001-12-20 2004-11-02 Rohm And Haas Company Method for marking hydrocarbons with anthraquinones
ATE381595T1 (de) * 2002-02-14 2008-01-15 Fujifilm Corp Verfahren zur optischen bestimmung von mehrsträngigen nucleinsäuren mit hilfe von cyaninfarbstoffen
AU2003221759A1 (en) * 2002-04-09 2003-10-27 Isotag Technology, Inc. Information system for manipulating data related to the ordering and performance of services and communication of results
US7157611B2 (en) * 2002-07-11 2007-01-02 Rohm And Haas Company Pyrazinoporphyrazines as markers for liquid hydrocarbons
US20040102340A1 (en) * 2002-11-22 2004-05-27 Ho Kim Sang Method for marking hydrocarbons with anthraquinone imines
US20040110997A1 (en) * 2002-12-04 2004-06-10 Ho Kim Sang Method for marking liquid petroleum hydrocarbons
US7208451B2 (en) * 2003-01-29 2007-04-24 Authentic Inc. IMS detection of chemical markers in petroleum products
TWI230914B (en) * 2003-03-12 2005-04-11 Au Optronics Corp Circuit of current driving active matrix organic light emitting diode pixel and driving method thereof
DE10325537B4 (de) * 2003-06-04 2006-08-17 Fuchs Petrolub Ag Vorrichtung und Verfahren zum automatischen Detektieren von wenigstens einem in einem flüssigen Betriebsstoff enthaltenen fluoreszierenden und/oder lichtabsorbierenden Indikator während des Einfüllvorgangs des Betriebsstoffs in eine Maschine
JP3806118B2 (ja) * 2003-06-13 2006-08-09 ローム アンド ハース カンパニー 置換アントラキノンでの炭化水素のマーキング方法。
US20050019939A1 (en) * 2003-07-25 2005-01-27 Dale Spall Combination marker for liquids and method identification thereof
GB0326932D0 (en) 2003-11-19 2003-12-24 Johnson Matthey Plc Encapsulation and dispersion method and capsule therefor
US7919325B2 (en) * 2004-05-24 2011-04-05 Authentix, Inc. Method and apparatus for monitoring liquid for the presence of an additive
US6977177B1 (en) * 2004-05-26 2005-12-20 Rohm And Haas Company Method for marking hydrocarbons with substituted anthraquinones
US8486711B2 (en) 2004-10-22 2013-07-16 Bayer Materialscience Llc Highly fluorescent markers for fluids or articles
US7635596B2 (en) * 2004-12-15 2009-12-22 Rohm And Haas Company Method for monitoring degradation of lubricating oils
US9156707B2 (en) * 2005-08-24 2015-10-13 Johnson Matthey Plc Tagging system
US8129190B2 (en) * 2006-11-17 2012-03-06 Applied Nanotech Holdings, Inc. Tagged petroleum products and methods of detecting same
GB0718934D0 (en) * 2007-09-28 2007-11-07 Johnson Matthey Plc Tagging method
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