lect_18 - LECTURE 18 MASS SPECTROMETRY ADDITIONAL...

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LECTURE 18 MASS SPECTROMETRY ADDITIONAL TECHNIQUES SOFT IONIZATION AN INTRODUCTION WAYS TO FORM IONS 1. ION MOLECULE REACTIONS 2. RAPID VAPORIZATION IONIZATION 3. ENERGY SUDDEN IONIZATION
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GOAL OF MS – TO ID m/z = “PARENT ION” SOLVE THE STRUCTURE
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SOLVE THE STRUCTURE
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SOLVE THE STRUCTURE
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GOAL OF MS – TO ID m/z = “PARENT ION” SOLVING THE PROBLEM BY COMPARING DATA FROM DIFFERENT METHODS “CORE TECHNIQUE” M+• SI -1 SI -2 SI -3
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GOAL OF MS – TO ID m/z = “PARENT ION” SOLVING THE PROBLEM BY COMPARING DATA FROM DIFFERENT METHODS “CORE TECHNIQUE” M+• SI -1 SI -2 SI -3 WHAT BEST METHODS? WHAT ARE ESI, FT-ICR-MS, MS-MS?
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FIVE WAYS TO FORM IONS 1. EI @ 70 EV 2. ION MOLECULE REACTIONS 3. FIELD DESORPTION IONIZATION 4. LASER DESORPTION IONIZATION 5. SPRAY IONIZATION TECHNIQUES See pg 285
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FIVE WAYS TO FORM IONS 1. EI @ 70 EV 2. ION MOLECULE REACTIONS 3. FIELD DESORPTION IONIZATION 4. LASER DESORPTION IONIZATION 5. SPRAY IONIZATION TECHNIQUES M+• OR MH+ ODD EVEN ION ION See pg 285
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P285 ION MOL RXN
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This note was uploaded on 08/06/2008 for the course CHEM 124 taught by Professor Amagata during the Winter '08 term at UCSB.

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lect_18 - LECTURE 18 MASS SPECTROMETRY ADDITIONAL...

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