Mass spectrometry is an analytical method that consists of injecting a gas sample into a vacuum chamber where ions are deflected using an electromagnetic field. The degree to which they are deflected depends on their mass to charge ratio: m/z. Consequently, the type and quantity of ions within the sample can be determined. Various points within the system require a controlled gas injection. Examples are the nebulizing and drying gases, which ensure efficient ionization, and the collision cell, where the amount of gas flow impacts the dissociation process.

Mass spectrometry
Controlled gas flow with high repeatability to ensure optimal instrument performance
Experience the difference with our sensors
Repeatable measurements for a robust instrument
Controlling flow injections accurately and repeatably is vital for producing reliable results and ensuring instrument robustness.
Controlled process through fast reaction time and low flow measurement
Sensirion’s mass flow controllers react within milliseconds, thus enabling a highly controlled process. Furthermore, flows as low as a few ml/min can be used.
Analytical insights into your instrument
Relying on microthermal technology, Sensirion sensors offer a highly repeatable flow measurement down to nanoliters per minute and have been used in a variety of analytical laboratory instruments for applications such as liquid handling and pump feedback control.
However, our sensors can do more. On top of flow monitoring, their high sensitivity and fast reaction time enable insights into the instrument’s health and condition by detecting valve ringing, backflow, mechanical wear and bubbles.