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Mass Spectrometer

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 A Portable SpectrometerMass spectrometer is an equipment that can be used to find out the chemical composition of substances and that too with high accuracy. Mass spectrometer can measure the masses and relative concentrations of atoms and molecules. It makes use of the basic magnetic force on a moving charged particle. This technique of finding masses of individual molecules were developed early in the 20th century by a number of scientists. Mass spectrometers are used by a number of researchers in labs and universities worldwide.

Principle of Working
The mass spectrometers measure the characteristics of individual molecules. They work on the principle that different chemicals have different masses. To evaluate the mass of chemicals in a sample, first the sample is vaporized, and then ionized. The resulting ionized gas is accelerated through a chamber where it is manipulated by external electric and magnetic fields.

The three essential functions of a mass spectrometer are:
Principle of Working

Ionized gases respond to magnetic fields, so a magnet on the wall of the chamber is used to bend the ions towards a detector. The lighter ions bent towards the detector at a quick pace, while heavier ions bent at a slower rate. The resulting distribution of ions, called a mass spectra, can be used to determine the content of the original sample.

Types of Ionization
There are various types of ionization used for the mass spectrometer. It include :
Applications of Mass Spectrometers


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