摘要:
A fuel marker is disclosed herein, the fuel marker comprising at least one compound characterized by Formula I:
wherein X is carbon (C); R 1 and R 2 are independently selected from hydrogen, a C 1 to C 10 alkyl group, or a phenyl group; R 3 and R 3' are independently selected from hydrogen or a C 1 to C 4 alkyl group; R 4 and R 4' are independently selected from hydrogen, a C 1 to C 4 alkyl group, a C 4 to C 10 cycloalkyl group, or a C 6 to C 10 aryl group; R 5 and R 5' are independently selected from a C 4 to C 10 alkyl group; R 6 and R 6' are independently selected from hydrogen or a C 1 to C 6 alkyl group; and R 7 and R 7' are independently selected from hydrogen or a C 1 to C 4 alkyl group.
wherein X can be carbon (C), oxygen (O), or sulfur (S); R 1 and R 2 can each independently be hydrogen, a C 1 to C 20 alkyl group, or a C 6 to C 10 aryl group; R 3 and R 3' can each independently be hydrogen or a C 1 to C 4 alkyl group; R 4 and R 4' can each independently be hydrogen, a C 1 to C 4 alkyl group, a C 4 to C 10 cycloalkyl group, or a C 6 to C 10 aryl group; R 5 and R 5' can each independently be a C 4 to C 10 alkyl group; R 6 and R 6' can each independently be hydrogen or a C 1 to C 6 alkyl group; and R 7 and R 7' can each independently be hydrogen or a C 1 to C 4 alkyl group; and wherein the compound characterized by Formula I when subjected to gas chromatography-mass spectrometry (GC-MS) using electron ionization produces at least one ion having a mass-to-charge ratio of greater than about 300 at an ionization energy of equal to or greater than about 70 eV.
摘要翻译:式I表示的化合物:其中X可以是碳(C),氧(O)或硫(S); R 1和R 2各自独立地为氢,C 1至C 20烷基或C 6至C 10芳基; R 3和R 3'各自独立地为氢或C 1〜C 4烷基; R 4和R 4'可各自独立地为氢,C 1至C 4烷基,C 4至C 10环烷基或C 6至C 10芳基; R 5和R 5'各自独立地为C 4至C 10烷基; R 6和R 6'可各自独立地为氢或C 1至C 6烷基; R 7和R 7'各自独立地为氢或C 1〜C 4烷基; 并且其中当使用电子电离进行气相色谱 - 质谱法(GC-MS)时,式I表征的化合物在电离能等于或等于10时产生具有大于约300的质荷比的至少一种离子, 大于约70eV。
摘要:
A method and composition for identifying chemically tagged petroleum products can be achieved by adding one or more chemicals to a selected petroleum product wherein the chemical is immune to extraction from the petroleum product by conventional inexpensive absorbents, cannot be removed by extraction with acids, bases, or immiscible solvents, cannot be easily oxidized, reduced or reacted with common agents, is difficult to disguise by masking with other agents, has a low polarity, and has a boiling pint in the range of the petroleum product the chemical is being added to. The presence of the chemical is determined by using ion mobility to spectroscopy.
摘要:
Device and methods for detecting/quantifying a fluorescent taggant in a liquid sample. Generally, the liquid samples are fuels having low concentrations (measured in ppb) of a fluorescent taggant. The detection/quantification generates a predicted concentration of the fluorescent tagging compound using a process selected from the group of a multivariate process, a background subtraction process, or a combination of both. The invention addresses the detection of an adulteration of gasoline and diesel fuels.
摘要:
Marking a petroleum product includes adding a covert dye selected from the group consisting of azadipyrromethene dyes, dipyrromethene dyes, and any combination thereof to the petroleum product and distributing the dye in the petroleum product. A petroleum product selected for analysis may be spectroscopically analyzed for the presence of an azadipyrromethene dye, a dipyrromethene dye, or a combination thereof. A concentration of at least one azadipyrromethene or dipyrromethene dye present in the portion of the petroleum product may be determined to identify the petroleum product as counterfeit, adulterated, or authentic based on the determined concentration of the azadipyrromethene or dipyrromethene dye.
摘要:
A method and composition for identifying chemically tagged petroleum products can be achieved by adding one or more chemicals to a selected petroleum product wherein the chemical is immune to extraction from the petroleum product by conventional inexpensive absorbents, cannot be removed by extraction with acids, bases, or immiscible solvents, cannot be easily oxidized, reduced or reacted with common agents, is difficult to disguise by masking with other agents, has a low polarity, and has a boiling pint in the range of the petroleum product the chemical is being added to. The presence of the chemical is determined by using ion mobility to spectroscopy.
摘要:
Tagged products (including tagged petroleum products) and methods of detecting the same are disclosed. The tagged petroleum products are tagged with a violanthrone, e.g., a substituted violanthrone and/or an isoviolanthrone, e.g., a substituted isoviolanthrone.
摘要:
Tagged products (including tagged petroleum products) and methods of detecting the same are disclosed. The tagged petroleum products are tagged with a violanthrone, e.g., a substituted violanthrone and/or an isoviolanthrone, e.g., a substituted isoviolanthrone.
摘要:
Formation of an authentication element by deposition of a metal layer with embedded particles on a metal substrate, wherein the embedded particles are configured to convert energy from one wavelength to another. The embedded particles may be upconverters, downconverters, or phosphorescent phosphors, which can be detected and measured with analytical equipment when deposited in the metal layer. A metal substrate may include coinage.
摘要:
Tagged products (including tagged petroleum products) and methods of detecting the same are disclosed. The tagged petroleum products are tagged with a violanthrone, e.g., a substituted violanthrone and/or an isoviolanthrone, e.g., a substituted isoviolanthrone.