Mass Spectrometry Principles and Applications
by de Hoffmann, Edmond; Stroobant, Vincent-
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Summary
Author Biography
Universit´e Catholique de Louvain, Belgium & Ludwig Institute for
Cancer Research, Brussels, Belgium
Vincent Stroobant
Ludwig Institute for Cancer Research, Brussels, Belgium
Table of Contents
| Preface | p. xi |
| Introduction | p. 1 |
| Principles | p. 1 |
| Diagram of a Mass Spectrometer | p. 4 |
| History | p. 5 |
| Ion Free Path | p. 10 |
| Ion Sources | p. 15 |
| Electron Ionization | p. 15 |
| Chemical Ionization | p. 17 |
| Proton transfer | p. 19 |
| Adduct formation | p. 21 |
| Charge-transfer chemical ionization | p. 21 |
| Reagent gas | p. 22 |
| Negative ion formation | p. 25 |
| Desorption chemical ionization | p. 27 |
| Field Ionization | p. 28 |
| Fast Atom Bombardment and Liquid Secondary Ion Mass Spectrometry | p. 29 |
| Field Desorption | p. 31 |
| Plasma Desorption | p. 32 |
| Laser Desorption | p. 33 |
| Matrix-Assisted Laser Desorption Ionization | p. 33 |
| Principle of MALDI | p. 33 |
| Practical considerations | p. 36 |
| Fragmentations | p. 39 |
| Atmospheric pressure matrix-assisted laser desorption ionization | p. 39 |
| Thermospray | p. 41 |
| Atmospheric Pressure Ionization | p. 42 |
| Electrospray | p. 43 |
| Multiply charged ions | p. 46 |
| Electrochemistry and electric field as origins of multiply charged ions | p. 48 |
| Sensitivity to concentration | p. 50 |
| Limitation of ion current from the source by the electrochemical process | p. 51 |
| Practical considerations | p. 54 |
| Atmospheric Pressure Chemical Ionization | p. 55 |
| Atmospheric Pressure Photoionization | p. 56 |
| Atmospheric Pressure Secondary Ion Mass Spectrometry | p. 61 |
| Desorption electrospray ionization | p. 61 |
| Direct analysis in real time | p. 62 |
| Inorganic Ionization Sources | p. 65 |
| Thermal ionization source | p. 65 |
| Spark source | p. 67 |
| Glow discharge source | p. 68 |
| Inductively coupled plasma source | p. 69 |
| Practical considerations | p. 71 |
| Gas-Phase Ion-Molecule Reactions | p. 72 |
| Formation and Fragmentation of Ions: Basic Rules | p. 76 |
| Electron ionization and photoionization under vacuum | p. 77 |
| Ionization at low pressure or at atmospheric pressure | p. 77 |
| Proton transfer | p. 77 |
| Adduct formation | p. 78 |
| Formation of aggregates or clusters | p. 79 |
| Reactions at the interface between source and analyser | p. 79 |
| Mass Analysers | p. 85 |
| Quadrupole Analysers | p. 88 |
| Description | p. 88 |
| Equations of motion | p. 91 |
| Ion guide and collision cell | p. 96 |
| Spectrometers with several quadrupoles in tandem | p. 98 |
| Ion Trap Analysers | p. 100 |
| The 3D ion trap | p. 100 |
| The 2D ion trap | p. 117 |
| The Electrostatic Trap or 'Orbitrap' | p. 122 |
| Time-of-Flight Analysers | p. 126 |
| Linear time-of-flight mass spectrometer | p. 126 |
| Delayed pulsed extraction | p. 129 |
| Reflectrons | p. 131 |
| Tandem mass spectrometry with time-of-flight analyser | p. 134 |
| Orthogonal acceleration time-of-flight instruments | p. 139 |
| Magnetic and Electromagnetic Analysers | p. 143 |
| Action of the magnetic field | p. 143 |
| Electrostatic field | p. 144 |
| Dispersion and resolution | p. 145 |
| Practical considerations | p. 146 |
| Tandem mass spectrometry in electromagnetic analysers | p. 149 |
| Ion Cyclotron Resonance and Fourier Transform Mass Spectrometry | p. 157 |
| General principle | p. 157 |
| Ion cyclotron resonance | p. 159 |
| Fourier transform mass spectrometry | p. 159 |
| MS[superscript n] in ICR/FTMS instruments | p. 164 |
| Hybrid Instruments | p. 164 |
| Electromagnetic analysers coupled to quadrupoles or ion trap | p. 165 |
| Ion trap analyser combined with time-of-flight or ion cyclotron resonance | p. 166 |
| Hybrids including time-of-flight with orthogonal acceleration | p. 167 |
| Detectors and Computers | p. 175 |
| Detectors | p. 175 |
| Photographic plate | p. 176 |
| Faraday cup | p. 176 |
| Electron multipliers | p. 177 |
| Electro-optical ion detectors | p. 181 |
| Computers | p. 182 |
| Functions | p. 183 |
| Instrumentation | p. 183 |
| Data acquisition | p. 183 |
| Data conversion | p. 186 |
| Data reduction | p. 186 |
| Library search | p. 186 |
| Tandem Mass Spectrometry | p. 189 |
| Tandem Mass Spectrometry in Space or in Time | p. 189 |
| Tandem Mass Spectrometry Scan Modes | p. 192 |
| Collision-Activated Decomposition or Collision-Induced Dissociation | p. 195 |
| Collision energy conversion to internal energy | p. 196 |
| High-energy collision (keV) | p. 198 |
| Low-energy collision (between 1 and 100 eV) | p. 199 |
| Other Methods of Ion Activation | p. 199 |
| Reactions Studied in MS/MS | p. 202 |
| Tandem Mass Spectrometry Applications | p. 204 |
| Structure elucidation | p. 205 |
| Selective detection of target compound class | p. 207 |
| Ion-molecule reaction | p. 210 |
| The kinetic method | p. 211 |
| Mass Spectrometry/Chromatography Coupling | p. 217 |
| Elution Chromatography Coupling Techniques | p. 218 |
| Gas chromatography/mass spectrometry | p. 219 |
| Liquid chromatography/mass spectrometry | p. 221 |
| Capillary electrophoresis/mass spectrometry | p. 228 |
| Chromatography Data Acquisition Modes | p. 228 |
| Data Recording and Treatment | p. 230 |
| Data recording | p. 230 |
| Instrument control and treatment of results | p. 232 |
| Analytical Information | p. 243 |
| Mass Spectrometry Spectral Collections | p. 243 |
| High Resolution | p. 245 |
| Information at different resolving powers | p. 249 |
| Determination of the elemental composition | p. 251 |
| Isotopic Abundances | p. 251 |
| Low-mass Fragments and Lost Neutrals | p. 257 |
| Number of Rings or Unsaturations | p. 258 |
| Mass and Electron Parities, Closed-shell Ions and Open-shell Ions | p. 259 |
| Electron parity | p. 259 |
| Mass parity | p. 259 |
| Relationship between mass and electron parity | p. 260 |
| Quantitative Data | p. 260 |
| Specificity | p. 260 |
| Sensitivity and detection limit | p. 262 |
| External standard method | p. 264 |
| Sources of error | p. 265 |
| Internal standard method | p. 266 |
| Isotopic dilution method | p. 268 |
| Fragmentation Reactions | p. 273 |
| Electron Ionization and Fragmentation Rates | p. 273 |
| Quasi-Equilibrium and RRKM Theory | p. 275 |
| Ionization and Appearance Energies | p. 279 |
| Fragmentation Reactions of Positive Ions | p. 280 |
| Fragmentation of odd-electron cations or radical cations (OE[superscript [middle dot]+]) | p. 280 |
| Fragmentation of cations with an even number of electrons (EE[superscript +]) | p. 286 |
| Fragmentations obeying the parity rule | p. 288 |
| Fragmentations not obeying the parity rule | p. 291 |
| Fragmentation Reactions of Negative Ions | p. 291 |
| Fragmentation mechanisms of even electron anions (EE[superscript -]) | p. 292 |
| Fragmentation mechanisms of radical anions (OE[superscript [middle dot]-]) | p. 293 |
| Charge Remote Fragmentation | p. 293 |
| Spectrum Interpretation | p. 294 |
| Typical ions | p. 296 |
| Presence of the molecular ion | p. 296 |
| Typical neutrals | p. 296 |
| A few examples of the interpretation of mass spectra | p. 298 |
| Analysis of Biomolecules | p. 305 |
| Biomolecules and Mass Spectrometry | p. 305 |
| Proteins and Peptides | p. 306 |
| ESI and MALDI | p. 307 |
| Structure and sequence determination using fragmentation | p. 309 |
| Applications | p. 324 |
| Oligonucleotides | p. 342 |
| Mass spectra of oligonucleotides | p. 343 |
| Applications of mass spectrometry to oligonucleotides | p. 346 |
| Fragmentation of oligonucleotides | p. 351 |
| Characterization of modified oligonucleotides | p. 355 |
| Oligosaccharides | p. 357 |
| Mass spectra of oligosaccharides | p. 358 |
| Fragmentation of oligosaccharides | p. 360 |
| Degradation of oligosaccharides coupled with mass spectrometry | p. 367 |
| Lipids | p. 371 |
| Fatty acids | p. 373 |
| Acylglycerols | p. 376 |
| Bile acids | p. 382 |
| Metabolomics | p. 386 |
| Mass spectrometry in metabolomics | p. 387 |
| Applications | p. 388 |
| Exercises | p. 403 |
| Questions | p. 403 |
| Answers | p. 415 |
| Appendices | p. 437 |
| Nomenclature | p. 437 |
| Units | p. 437 |
| Definitions | p. 437 |
| Analysers | p. 438 |
| Detection | p. 439 |
| Ionization | p. 440 |
| Ion types | p. 441 |
| Ion-molecule reaction | p. 442 |
| Fragmentation | p. 442 |
| Acronyms and abbreviations | p. 442 |
| Fundamental Physical Constants | p. 446 |
| Table of Isotopes in Ascending Mass Order | p. 447 |
| Table of Isotopes in Alphabetical Order | p. 452 |
| Isotopic Abundances (in %) for Various Elemental Compositions CHON | p. 457 |
| Gas-Phase Ion Thermochemical Data of Molecules | p. 467 |
| Gas-Phase Ion Thermochemical Data of Radicals | p. 469 |
| Literature on Mass Spectrometry | p. 470 |
| Mass Spectrometry on Internet | p. 476 |
| Index | p. 479 |
| Table of Contents provided by Ingram. All Rights Reserved. |
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