公开(公告)号：US20150355091A1

公开(公告)日：2015-12-10

申请号：US14808041

申请日：2015-07-24

Applicant: Authentix, Inc.

Inventor： Jeffrey L. CONROY ,  Philip B. FORSHEE ,  Paul J. CRONIN ,  Olusola SOYEMI

IPC: G01N21/64 ,  G01N33/28

CPC classification number: G01N21/643 ,  G01N33/2882 ,  G01N2021/6439

Abstract: 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.

Abstract translation: 用于检测/定量液体样品中的荧光标记物的装置和方法。 通常，液体样品是荧光标记物浓度低（以ppb计）的燃料。 检测/定量使用选自多变量过程，背景减除过程或两者的组合的过程来生成荧光标记化合物的预测浓度。 本发明涉及对汽油和柴油燃料掺假的检测。

公开(公告)号：US20190204290A1

公开(公告)日：2019-07-04

申请号：US16234928

申请日：2018-12-28

Applicant: Authentix, Inc.

Inventor： Olusola SOYEMI ,  Anahita KYANI

IPC: G01N33/28 ,  G01N23/223 ,  C10L1/00

Abstract: A method of fuel analysis comprising subjecting a fuel sample comprising a fuel marker and a fuel matrix to fluorescence spectroscopy to generate a measured emission spectrum comprising a first spectral component (type and amount of marker in sample), a second spectral component (spectral perturbation), and a third spectral component (matrix fluorescence); deconvoluting the measured emission spectrum to yield a deconvoluted measured emission spectrum (first and second spectral components) via removal of third spectral component; decoupling the deconvoluted measured emission spectrum to yield a corrected emission spectrum (first spectral component) via a projection function which orthogonally projects the deconvoluted measured emission spectrum onto a subspace devoid of the second spectral component; and determining the amount of fuel marker in the fuel sample from the corrected emission spectrum. The method of fuel analysis comprises temperature corrections.