Spray chambers are used in the ICP-MS process to ensure only small droplets enter the plasma. ICP-MS is a sensitive system used to measure the electrical concentration of solutions. Different types of spray chambers are available for different purposes.
A spray chamber is used in the ICP-MS spectrometry process. Spray chambers are used at a certain point in the process where a fine spray is developed and then stored in a chamber where the argon is then mixed. The essential responsibility of the spray chambers is to ensure that only small and narrow droplet sizes pass into the plasma. Most of the material to be sampled is drained from the chamber and the remainder is introduced into the plasma where it is excited by the high temperatures.
Spray chambers are most commonly used during the ICP-MS process. ICP-MS stands for Inductively Coupled Plasma Mass Spectrometer. ICP-MS is a very sensitive and time-efficient system used to measure the electrical concentration of various solutions. Using ICP-MS, up to 75 individual elements can be determined, even if the element has only one part per billion in the solution.
There are many steps in the ICP-MS procedure that allow scientists to analyze elements. The initial step of the process is to convert the molecules in a sample substance into individual atoms and ions. This is done by subjecting the sample to high temperature radio frequency argon plasma. A pump carries the sample to a nebulizer and it is converted into a fine spray.
The fine spray is then held in the spray chamber where it is mixed with an argon plasma. In the chamber, most of the sample is drained off while the rest is carried through the process. The remainder of the sample mixed with the argon plasma is then subjected to high heat and ionized for particle spectrum analysis.
There are a multitude of different ICP-MS machines used for sample analysis. Therefore, there are also different types of spray chambers. Some of the different types available are Althea, Libra, Electron and Poistron.
Althea is used for high productivity with high intake. The Libra is a cyclonic baffled spray chamber used for low solvents. The Electron is a mini-cyclonic spray chamber for low draw and fast throughput. The Poistron is a mini-cyclonic baffled spray chamber used for low draw and minimal solvent loading.
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