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MS Mass Spectrometry

In the past decade, a number of soft ionization modes have been developed which now make it possible in most cases to obtain the molecular weight. Even for compounds with very high molecular weights, like proteins, these can now be determined by means of MS. Ionization methods commonly used are fast atom bombardment (FAB), field desorption (FD) and chemical ionization (Cl). Chemical ionization spectra can be recorded from both [Pg.10]

An important aspect of MS (especially electron impact) is fragmentation, which is characteristic for each compound. With methods like FAB and FD, this characteristic feature is often lost. Fragmentation patterns do give useful information about the structure of a compound. Loss of certain groups, or specific fragments for a certain class of compounds, are important information for the structure elucidation. Furthermore, with high resolution mass spectrometry, the elemental composition of the molecule can be obtained. The MS of alkaloids has been extensively reviewed by Hesse (1974) and Hesse and Bernhard (1975). [Pg.11]

The direct coupling of MS with GC or HPLC turns these methods into very powerful tools in the identification of alkaloids at low levels in various biological materials (see separate chapters on GC-MS and LC-MS). GC-MS has the advantage that it is easier to obtain mass spectra also showing fragmentation, either using electron impact (El) or chemical ionization (Cl). In most of the available interfaces for LC-MS, no fragmentation spectra can be obtained only the protonated molecule (M+1) can be observed in the positive ion mode. [Pg.11]

MS-MS mass spectrometry in combination with mass spectrometry (tandem mass spectrometry)... [Pg.16]

ECD = electron capture detector GC = gas chromatography HPLC = high-performance liquid chromatography MC = microcoulometric detector MS = mass spectrometry NICI = negative ion chemical ionization RSD = relative standard deviation SPE = solid phase extraction... [Pg.252]

ECD = electron capture detector FID = flame ionization detection GC = gas chromatography HECD = Hall electrolytic conductivity detector HRGC = high-resolution gas chromatography HSD = halogen-specific detector H2SO4 = sulfuric acid MS = mass spectrometry NR = not reported PID = photoionization detection UV = ultraviolet detection... [Pg.238]

THF = tetrahydrofuran. ACN = acetonitrile, p.s. = particle size. i.d. = internal diameter, o.d. = outer diameter. MeOH = methanol. MS = mass spectrometry. DAD = diode array detector, n.a. = not available. THC = tetrahydrocurcumin. = exdtation wavelength. X = emission wavelength. [Pg.82]

D2O = deutered water. HPLC = high performance liquid chromatography. IS = internal standard. MeOH = methanol. MS = mass spectrometry. NMR = nuclear magnetic resonance. PDA = photodiode array detector. TEA = triethylamine. MTBE = methyl tert-butyl ether. [Pg.461]

In modern times, most analyses are performed on an analytical instrument for, e.g., gas chromatography (GC), high-performance liquid chromatography (HPLC), ultra-violet/visible (UV) or infrared (IR) spectrophotometry, atomic absorption spectrometry, inductively coupled plasma mass spectrometry (ICP-MS), mass spectrometry. Each of these instruments has a limitation on the amount of an analyte that they can detect. This limitation can be expressed as the IDL, which may be defined as the smallest amount of an analyte that can be reliably detected or differentiated from the background on an instrument. [Pg.63]

ECD, electron capture detection NPD, nitrogen-phosphorus detection MS, mass spectrometry. [Pg.333]

Direct polymer compound analysis by soft ionisation, tandem MS/MS and high-resolution (AC-MS) mass spectrometry, has been reviewed [236]. [Pg.406]

AFID = alkali-flame ionization detection FID = flame ionization detection FPD = flame photometric detection GC = gas chromatography IGEFET = interdigitated gate electrode field-effect transistor ITMS = ion trap mass spectrometry MIMS = multiphoton ionization mass spectrometry MS = mass spectrometry... [Pg.136]

GC = gas chromatography GPC = gel permeation chromatography MS = mass spectrometry NPD = nitrogen/phosphorus detection... [Pg.323]

See other pages where MS Mass Spectrometry is mentioned: [Pg.226]    [Pg.30]    [Pg.231]    [Pg.358]    [Pg.391]    [Pg.438]    [Pg.471]    [Pg.610]    [Pg.698]    [Pg.708]    [Pg.734]    [Pg.799]    [Pg.877]    [Pg.951]    [Pg.567]    [Pg.360]    [Pg.130]    [Pg.262]    [Pg.349]    [Pg.316]    [Pg.707]    [Pg.232]    [Pg.331]    [Pg.284]    [Pg.888]    [Pg.757]    [Pg.360]    [Pg.322]    [Pg.327]    [Pg.455]    [Pg.26]    [Pg.100]    [Pg.10]    [Pg.318]    [Pg.48]    [Pg.217]    [Pg.272]   


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Capillary electrophoresis mass spectrometry CE-MS)

Chemical ionization mass spectrometry CI-MS)

Coupled Plasma Mass Spectrometry (ICP-MS)

Direct exposure mass spectrometry DE MS)

Easy ambient sonic-spray ionization mass spectrometry EASI-MS)

Electron ionization mass spectrometry EI-MS)

Electron spray ionization mass spectrometry ESI-MS)

Electrospray ionisation mass spectrometry ESI-MS)

Electrospray ionization mass spectrometry ES-MS)

Electrospray mass spectrometry ESI-MS)

Electrospray-Mass Spectrometry (ES-MS)

Fast atom bombardment mass spectrometry FAB-MS)

Flow-injection analysis-mass spectrometry FIA-MS)

Fourier transform mass spectrometry FT-MS)

GC-MS and Isotope Ratio Mass Spectrometry

Gas chromatograph mass spectrometry GC-MS)

Gas chromatography with mass spectrometry GC/MS)

Gas chromatography-coupled mass spectrometry GC-MS)

Gas chromatography-mass spectrometry GC-MS)

Gas/liquid chromatography/mass spectrometry GLC/MS)

Glow-discharge mass spectrometry GD-MS)

High Resolution Mass Spectrometry HR-MS)

High-performance liquid chromatography-mass spectrometry HPLC-MS)

Hquid chromatography mass spectrometry LC-MS)

Inductive coupled plasma mass spectrometry ICP-MS)

Inductively Coupled Plasma Mass Spectrometry Handbook Edited by Simon M. Nelms

Inductively Coupled Plasma Mass Spectrometry Handbook Edited by Simon M. Nelms 2005 Blackwell Publishing Ltd. ISBN

Inductively couple plasma mass spectrometry ICP-MS)

Inductively coupled plasma mass spectrometry ICP/MS)

Ion cyclotron resonance mass spectrometry ICR-MS)

Ion-molecule reaction mass spectrometry IMR-MS)

Laser desorption/ionization mass spectrometry LDI-MS)

Liquid Chromatography-Mass Spectrometry Coupling (LC-MS)

Liquid chromatography/mass spectrometry LC/MS)

Liquid chromatography/mass spectrometry/MS

Mass spectrometry CE/MS)

Mass spectrometry MS methods

Matrix Assisted Laser Desorption Ionization-Time of Flight-Mass Spectrometry (MALDI-TOF-MS)

Matrix-Assisted Laser Desorption Ionisation Mass Spectrometry (MALDI MS)

Membrane-preconcentration-capillary electrophoresis-mass spectrometry mPC-CE-MS)

Proton transfer reaction mass spectrometry PTR-MS)

Pyrolysis-gas chromatography-mass spectrometry Py GC MS)

Selected ion flow tube mass spectrometry SIFT-MS)

Spectrometry MS

Supercritical fluid chromatography-mass spectrometry SFC-MS)

Time-of-flight mass spectrometry TOF-MS)

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