Radiant energy – Calibration or standardization methods
Patent
1997-05-30
1999-02-16
Anderson, Bruce
Radiant energy
Calibration or standardization methods
250282, B01D 5944, H01J 4900
Patent
active
058723579
ABSTRACT:
Calibrant compositions are provided for use in either electrospray or APCI mass spectrometry, and can be used in either positive-ionization or negative-ionization modes. The compositions contain a primary calibrant preferably comprised of a mixture of homogeneously substituted triazatriphosphorines, and a secondary calibrant enabling calibration at relatively low mass-to-charge (m/z) values. The compositions enable calibration across a broad mass spectral range. Novel triazatriphosphorine compounds are provided as well, as are methods for calibrating mass spectrometers using the novel calibrant compositions.
REFERENCES:
patent: 4073624 (1978-02-01), Huston et al.
patent: 4260886 (1981-04-01), Grilletto et al.
patent: 4687929 (1987-08-01), Browner et al.
patent: 4847493 (1989-07-01), Sodal et al.
patent: 5051583 (1991-09-01), Mimura et al.
patent: 5401664 (1995-03-01), Larson et al.
patent: 5545895 (1996-08-01), Wright et al.
patent: 5600134 (1997-02-01), Ashe et al.
patent: 5686726 (1997-11-01), Fenn et al.
Cody et al., "Electrospray Ionization/Magnetic Sector Mass Spectrometry: Calibration, Resolution, and Accurate Mass Measurements," Anal. Chem., 64:1561-1570 (1992).
Heeremans et al., "Acetic Acid Cluster Ions for Tuning and Calibration in Thermospray Liquid Chromotography /Mass Spectrometry," Organic Mass Spect., 24: 109-112 (1989).
Hewlett Packard/Bruker, "The Esquire-LC Ion Trap LC/MS.sup.(n) System," (Brochure), 1-12 (1997).
Ho et al., "Mass Transport and Calibration in Liquid Chromatography Particle Beam Mass Spectrometry," J. Am. Soc. Mass Spectr., 3:662-671 (1992).
Moini "Ultramark 1621 as a Calibration/Reference Compound for Mass Spectrometry. II. Positive- and Negative-Ion Electrospray Ionization," Rapid Communications in Mass Spectrometry, 8:711-714 (1994).
Saar et al., "Improved Tuning and Calibration in Liquid Chromatography/Thermospray Mass Spectrometry Using Acetic Acid Cluster Ions," Organic Mass Spectrometry, 26:660-663 (1991).
Stout et al., "Tuning and Calibration in Thermospray Liquid Chromatography/Mass Spectrometry Using Trifluoroacetic Acid Cluster Ions," Anal. Chem., 61:2126-2128 (1989).
Stout et al., "Tuning and Calibration in Thermospray Liquid Chromatography/Mass Spectrometry Using Perfluorinated Alkyl Acids and Their Ammonium Salts," Organic Mass Spectrometry, 25:187-190 (1990).
Anderson Bruce
Hewlett--Packard Company
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