Mass spectrometry is a technique for separating and identifying molecules based on mass. It has become an important tool for proteomics, the analysis of the whole range of proteins expressed in a cell. Mass spectrometry is used to identify proteins and...

Mass spectrometry is an instrumental method of obtaining structure and mass information about either molecules or atoms by generating ionized particles and then accelerating them in a curved path through a magnetic field. Heavier particles are more...

A technique of elemental analysis first developed by Sir Francis Aston in the early twentieth century. In a mass spectrometer, a sample is first vaporized and then converted to positively charged ions. These ions are accelerated to a high speed and...

An analytical technique for identification of chemical structures, determination of mixtures, and quantitative elemental analysis, based on application of the mass spectrometer. A method of chemical analysis which vaporizes, then ionizes the substance...

Mass spectrometry is an analytical technique that measures the mass-to-charge ratio of ions.[1] It is most generally used to find the composition of a physical sample by generating a mass spectrum representing the masses of sample components. The mass...

5-PRIME What is mass spectrometry? Mass spectrometry, or MS1 is the measurement of molecular mass that is gained by determining the mass-to-charge ratio (m/z) of ions generated from the target molecule. Mass spectrometers are comprised of a source for generating the ions from...

SPECTROMETRY FORUM As knowledge of the masses of isotopes was compiled, Aston made a valuable contribution in his observation that the integral nature of the isotopic masses is only approximately valid. It has been estimated that a billion mass spectra are recorded...

Hair strands reveal evidence of a person's diet and can help doctors diagnose eating disorders, researchers at Brigham Young University reported. Researchers found differences in nitrogen and carbon when samples from females at an eating-disorder clinic were compared with hair...