Kratos MS 50
Encyclopedia
The Kratos MS 50, or EI 50, is a tool for electron ionization (EI)
. The EI 50, used for relatively small molecules (as opposed to methods like MALDI), ionizes molecules via electron ionization
(normally under 70 electronvolt
conditions) and then accelerates them through an electric potential. The spectroscopy is done by analyzing the different displacements by a magnet
. For equal charge, these displacements depend only on velocity
, thus for the EI 50's constant kinetic energy
conditions, these displacements are uniquely determined by a particle's mass
.
Electron ionization
Electron ionization is an ionization method in which energetic electrons interact with gas phase atoms or molecules to produce ions...
. The EI 50, used for relatively small molecules (as opposed to methods like MALDI), ionizes molecules via electron ionization
Electron ionization
Electron ionization is an ionization method in which energetic electrons interact with gas phase atoms or molecules to produce ions...
(normally under 70 electronvolt
Electronvolt
In physics, the electron volt is a unit of energy equal to approximately joule . By definition, it is equal to the amount of kinetic energy gained by a single unbound electron when it accelerates through an electric potential difference of one volt...
conditions) and then accelerates them through an electric potential. The spectroscopy is done by analyzing the different displacements by a magnet
Magnet
A magnet is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, and attracts or repels other magnets.A permanent magnet is an object...
. For equal charge, these displacements depend only on velocity
Velocity
In physics, velocity is speed in a given direction. Speed describes only how fast an object is moving, whereas velocity gives both the speed and direction of the object's motion. To have a constant velocity, an object must have a constant speed and motion in a constant direction. Constant ...
, thus for the EI 50's constant kinetic energy
Kinetic energy
The kinetic energy of an object is the energy which it possesses due to its motion.It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes...
conditions, these displacements are uniquely determined by a particle's mass
Mass
Mass can be defined as a quantitive measure of the resistance an object has to change in its velocity.In physics, mass commonly refers to any of the following three properties of matter, which have been shown experimentally to be equivalent:...
.