Mass Spectrometry Stocks List
Symbol | Grade | Name | % Change | |
---|---|---|---|---|
WAT | A | Waters Corporation | 19.84 | |
PMD | C | Psychemedics Corporation | -0.43 | |
A | D | Agilent Technologies, Inc. | 5.03 | |
BRKR | D | Bruker Corporation | 4.73 | |
CLWT | F | Euro Tech Holdings Company Limited | -2.60 | |
MKSI | F | MKS Instruments, Inc. | 1.28 | |
MASS | F | 908 Devices Inc. | 10.37 |
Related Industries: Diagnostics & Research Medical Devices Pollution & Treatment Controls Scientific & Technical Instruments
Symbol | Grade | Name | Weight | |
---|---|---|---|---|
TINY | F | ProShares Nanotechnology ETF | 7.74 | |
FIW | D | First Trust ISE Water Index Fund | 7.49 | |
FBT | A | First Trust Amex Biotech Index Fund | 6.21 | |
MGRO | C | SHL Telemedicine Ltd VanEck Morningstar Wide Moat Growth ETF | 5.66 | |
HELX | D | Franklin Genomic Advancements ETF | 4.09 |
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- Mass Spectrometry
Mass spectrometry (MS) is an analytical technique that ionizes chemical species and sorts the ions based on their mass-to-charge ratio. In simpler terms, a mass spectrum measures the masses within a sample. Mass spectrometry is used in many different fields and is applied to pure samples as well as complex mixtures.
A mass spectrum is a plot of the ion signal as a function of the mass-to-charge ratio. These spectra are used to determine the elemental or isotopic signature of a sample, the masses of particles and of molecules, and to elucidate the chemical structures of molecules and other chemical compounds.
In a typical MS procedure, a sample, which may be solid, liquid, or gas, is ionized, for example by bombarding it with electrons. This may cause some of the sample's molecules to break into charged fragments. These ions are then separated according to their mass-to-charge ratio, typically by accelerating them and subjecting them to an electric or magnetic field: ions of the same mass-to-charge ratio will undergo the same amount of deflection. The ions are detected by a mechanism capable of detecting charged particles, such as an electron multiplier. Results are displayed as spectra of the relative abundance of detected ions as a function of the mass-to-charge ratio. The atoms or molecules in the sample can be identified by correlating known masses (e.g. an entire molecule) to the identified masses or through a characteristic fragmentation pattern.
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