Radiant energy – Ionic separation or analysis – Methods
Reexamination Certificate
2011-05-31
2011-05-31
Nguyen, Kiet T (Department: 2881)
Radiant energy
Ionic separation or analysis
Methods
Reexamination Certificate
active
07952068
ABSTRACT:
Provided are methods for determining the amount of one or more of one or more of epinephrine (E), norepinephrine (NE), and dopamine (D) in a sample using mass spectrometry. The methods generally involve ionizing one or more of E, NE, and D in a sample and detecting and quantifying the amount of the ion to determine the amount of one or more of E, NE, and D in the sample.
REFERENCES:
patent: 5772874 (1998-06-01), Quinn et al.
patent: 5795469 (1998-08-01), Quinn et al.
patent: 5919368 (1999-07-01), Quinn et al.
patent: 5968367 (1999-10-01), Quinn et al.
patent: 6107623 (2000-08-01), Bateman et al.
patent: 6124137 (2000-09-01), Hutchens et al.
patent: 6204500 (2001-03-01), Whitehouse et al.
patent: 6268144 (2001-07-01), Köster
patent: 6623928 (2003-09-01), Van Ness et al.
patent: 2006/0183238 (2006-08-01), Nimkar et al.
Bartolucci, et al., Liquid chromatography tandem mass spectrometric quantitation of sulfamethazine and its metabolites: direct analysis of swine urine by triple quadrupole and by ion trap mass spectrometry,Rapid Commun. Mass Spectrom. 14:967-73 (2000).
Carrera, V., et al., A simple and rapid HPLC-MS method for simultaneous determination of epinephrine, norepinephrine, dopamine and 5-hydroxytryptamine: Application to the secretion of bovine chromaffin cell cultures,J Chromatog. B, 847:88-94 (2007).
Chan, E., et al., High-performance liquid chromatographic assay for catecholamines and metanephrines using fluorimetric detection with pre-column 9-fluorenylmethyloxycarbonyl chloride derivatization,J Chromatog. B, 749:179-189 (2000).
Chan, E., et al., High-performance liquid chromatography/atmospheric pressure chemical ionization mass spectrometric method for the analysis of catecholamines and metanephrines in human urine,Rapid Commun. Mass Spectrom., 14:1959-1964 (2000).
Eriksson, B., et al., Determination of catecholamines in urine by liquid chromatography and electrochemical detection after on-line sample purification on immobilized boronic acid,J Chromatog., 593:185-190 (1992).
Gu, Q., et al., Analysis of catecholamines and their metabolites in adrenal gland by liquid chromatography tandem mass spectrometry,Analytica Chimica Acta, 609:192-200 (2008).
Heki, N., et al., Mass fragmentography—An improved method for the simultaneous analysis of norepinephrine, epinephrine and dopamine ant the pictogram level by mass fragmetography,Nippon Naibunpi Gakkai Zasshi, 53:785-96 (1977). (The article is in Japanese but an English language abstract has been provided).
Kushnir, M., et al., Analysis of Catecholamines in Urine by Positive-Ion Electrospray Tandem Mass Spectrometry,Clin. Chem., 48:323-31 (2002).
Lemos-Amado, F., et al., Electrospray tandem mass spectrometry of aminochromes,Rapid Commun. Mass Spectrom., 15:2466-71 (2001).
Merchant and Weinberger, Recent advancements in surface-enhancer laser desorption/ionization of flight-mass spectrometry,Electrophoresis, 21: 1164-67 (2000).
Polson et al., Optimization of protein precipitation based upon effectiveness of protein removal and ionization effect in liquid chromatography—tandem mass spectrometry,Journal of Chromatography B, 785:263-275 (2003).
Robb et al., Atmospheric Pressure Photoionization: An Ionization Method for Liquid Chromatography-Mass Spectrometry,Anal. Chem., 72(15): 3653-3659 (2000).
Smythe, G., et al., Biochemical Diagnosis of Pheochromocytoma by Simultaneous Measurement of Urinary Excretion of Epinephrine and Norepinephrine,Clin. Chem., 38:486-92 (1992).
Soga, T., and Inoue, Y., Determination of catecholamines in urine and plasma by on-line sample pretreatment using an internal surface boronic acid gel,J Chromatog., 620:175-81 (1993).
Törnkvist, A., et al., Analysis of catecholamines and related substances using porous graphitic carbon as separation media in liquid chromatography-tandem mass spectrometry,J Chromatog. B, 801:323-329 (2004).
Wright et al., Proteinchip® surface enhanced laser desorption/ionization (SELDI) mass spectrometry: a novel protein biochip technology for detection of prostate cancer biomarkers in complex protein mixtures,Prostate Cancer and Prostatic Diseases, 2: 264-76 (1999).
Zimmer et al., Comparison of turbulent-flow chromatography with automated solid-phase extraction in 96-well plates and liquid-liquid extraction used as plasma sample preparation techniques for liquid chromatography-tandem mass spectrometry,J Chromatogr A, 854: 23-35 (1999).
Caulfield Michael P.
Lee Gloria Kwangja
Foley & Lardner LLP
Nguyen Kiet T
Quest Diagnostics Investments Incorporated
LandOfFree
Methods for detecting catecholamines by mass spectrometry does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods for detecting catecholamines by mass spectrometry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods for detecting catecholamines by mass spectrometry will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2663641