Spectrometry, Mass, Electrospray Ionization - Statistics & numerical data
Research News and Information

Sunday, November 22, 2009

Quantitation and validation of macrolide endectocides in raw milk by negative ion electrospray MS/MS.

27 Feb 2009 Macrolide endectocides (abamectin, doramectin, emamectin, eprinomectin, ivermectin, and moxidectin) are used to treat animals against a variety of parasites. They are approved for use with food animals, but require long withdrawal times. Two ... Read more...

Column liquid chromatography/electrospray ionization-time of flight-mass spectrometry and ultraperformance column liquid chromatography/mass spectrometry methods for the determination of ginkgolides and bilobalide in the leaves of Ginkgo biloba and dietary supplements.

27 Feb 2009 Column liquid chromatography/electrospray ionization-time of flight-mass spectrometry (LC/ESI-TOF-MS) and ultraperformance column liquid chromatographiclMS (UPLC/MS) methods were developed for the determination of 5 terpenelactones in the leaves of ... Read more...

Decomposition of charge-state distributions for a better understanding of electrospray mass spectra of bioorganic compounds. Part 1: basic formalism.

30 Dec 2008 Further development in our approach for the interpretation of a mass spectral peak series resulting from unique modifications at a number of molecular sites is described and its application for the analysis of electrospray mass spectra of ... Read more...

Latest indexed articles for 'Spectrometry, Mass, Electrospray Ionization - Statistics & numerical data'

These are the very latest articles for this heading:

• Quantitation and validation of macrolide endectocides in raw milk by negative ion electrospray MS/MS. 27 Feb 2009
• Column liquid chromatography/electrospray ionization-time of flight-mass spectrometry and ultraperformance column liquid chromatography/mass spectrometry methods for the determination of ginkgolides and bilobalide in the leaves of Ginkgo biloba and dietary supplements. 27 Feb 2009
• Decomposition of charge-state distributions for a better understanding of electrospray mass spectra of bioorganic compounds. Part 1: basic formalism. 30 Dec 2008
• Quantification of global DNA methylation by capillary electrophoresis and mass spectrometry. 30 Dec 2008
• A linear ion trap mass spectrometer with versatile control and data acquisition for ion/ion reactions. 4 Sep 2008
• Monte carlo simulation of macromolecular ionization by nanoelectrospray. 14 May 2008
• Determination of fumonisins B1 and B2 in corn by liquid chromatography/mass spectrometry with immunoaffinity column cleanup: single-laboratory method validation. 29 Apr 2008
• Sensitive and rapid method to determine trimetazidine in human plasma by liquid chromatography/tandem mass spectrometry. 29 Apr 2008
• Capillary electrophoresis-mass spectrometry - a fast and reliable tool for the monitoring of milk adulteration. 29 Apr 2008
• Determination of amino acids by capillary electrophoresis-electrospray ionization-mass spectrometry: an evaluation of different protein hydrolysis procedures. 29 Apr 2008
• Determination of trace levels of benzodiazepine in urine using capillary electrochromatography-time of flight mass spectrometry. 29 Apr 2008
• A new insight into suction and dilution effects in capillary electrophoresis coupled to mass spectrometry via an electrospray ionization interface. Part I-Suction effect. 29 Apr 2008
• Nonaqueous capillary electrophoresis-electrospray ionization-ion trap-mass spectrometry analysis of pyrrolo- and pyrido[1,2-a]azepine alkaloids in Stemona. 29 Apr 2008
• Electrical field-assisted solid-phase extraction coupled on-line to capillary electrophoresis-mass spectrometry. 29 Apr 2008
• Development of a quantitative, validated capillary electrophoresis-time of flight-mass spectrometry method with integrated high-confidence analyte identification for metabolomics. 29 Apr 2008
• Separation of cytokinin isomers with a partial filling-micellar electrokinetic chromatography-mass spectrometry approach. 29 Apr 2008
• Development of a low-flow multiplexed interface for capillary electrophoresis/electrospray ion trap mass spectrometry using sequential spray. 29 Apr 2008
• An objective comparison of pre-processing methods for enhancement of liquid chromatography-mass spectrometry data. 8 Oct 2007
• A sheathless poly(methyl methacrylate) chip-CE/MS interface fabricated using a wire-assisted epoxy-fixing method. 30 Mar 2007
• Determination of apomorphine in canine plasma by liquid chromatography-electrospray ionization mass spectrometry and its application to a pharmacokinetic study. 30 Aug 2006

See a longer list of these articles.

Technical information about 'Spectrometry, Mass, Electrospray Ionization'

Definition: A mass spectrometry technique used for analysis of nonvolatile compounds such as proteins and macromolecules. The technique involves preparing electrically charged droplets from analyte molecules dissolved in solvent. The electrically charged droplets enter a vacuum chamber where the solvent is evaporated. Evaporation of solvent reduces the droplet size, thereby increasing the coulombic repulsion within the droplet. As the charged droplets get smaller, the excess charge within them causes them to disintegrate and release analyte molecules. The volatilized analyte molecules are then analyzed by mass spectrometry.

Descriptor UI: D021241

Alternative terms: Spectrometry, Mass, Electrospray Ionization; Electrospray Ionization Mass Spectrometry; ESI Mass Spectrometry; Mass Spectrometry, ESI; Spectrometry, ESI Mass;

Allowable Qualifiers: classification; economics; history; instrumentation; methods; standards; trends; utilization; veterinary; statistics & numerical data; ethics;

Tree Number: E05.196.566.600;

History Note: 2001