现代有机质谱概论
现代有机质谱概论
Outline Introduction · Instrument of oms Tandem Technology Main application
Outline • Introduction • Instrument of OMS • Tandem Technology • Main Application
Modern Organic Mass Spectrometry (OMs) Molecular Mass Spectrometry
Modern Organic Mass Spectrometry ( OMS ) Molecular Mass Spectrometry
OMS is a basic and high-technical science In which, physics, electronics and computer science were applied to study physical and chemical character of organic molecules
OMS is a basic and high-technical science. In which , physics, electronics and computer science were applied to study physical and chemical character of organic molecules
Mass Spectrometry had its origin in early last century Application of organic mass spectrometry for chemical analysis occurred in early 1940s
• Mass Spectrometry had its origin in early last century • Application of organic mass spectrometry for chemical analysis occurred in early 1940s
Quantitative analysis of hydrocarbon mixtures(9) produced in catalytic crackers Methods require time Fractional distillation refractive index 200 hours Organic mass spectrometry one hour or more
Quantitative analysis of hydrocarbon mixtures ( 9 ) produced in catalytic crackers Methods require time Fractional distillation , refractive index > 200 hours Organic mass spectrometry one hour or more
Beginning in the 1950s, chemists have used commercial organic mass spectrometer for identification and structural elucidation of a wide variety of organic compounds
Beginning in the 1950s , chemists have used commercial organic mass spectrometer for identification and structural elucidation of a wide variety of organic compounds
The use of the ms combined with the NMr IR and uv revolutionized the way organic chemists went about identifying and determining the structure of organic molecules
The use of the MS combined with the NMR IR and UV revolutionized the way organic chemists went about identifying and determining the structure of organic molecules
Mass spectrometry Determine molecular weight Elucidate structure of organic molecule Identify unknown compounds Quantify known materials Accuracy, sensitive and rapid
Mass Spectrometry • Determine molecular weight • Elucidate structure of organic molecule • Identify unknown compounds • Quantify known materials • Accuracy, sensitive and rapid
OMS has been a powerful analytical tool in modern structure chemistry and analytical chemistry
OMS has been a powerful analytical tool in modern structure chemistry and analytical chemistry
