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Flame ionization detector
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<p>A flame ionization detector (FID) is a <a href="/facts/Scientific_instrument/NX2ldw1E">scientific instrument</a> that measures <a href="/facts/Analyte/qWzKoY8L">analytes</a> in a gas stream. It is frequently used as a detector in <a href="/facts/Gas_chromatography/kwLY8vt1">gas chromatography</a>. The measurement of ions per unit time makes this a mass sensitive instrument. Standalone FIDs can also be used in applications such as <a href="/facts/Landfill_gas_monitoring/LxRPnXrC">landfill gas monitoring</a>, <a href="/facts/Fugitive_emission/IlBkcDSY">fugitive emissions</a> monitoring and <a href="/facts/Internal_combustion_engine/Ju4BXzj0">internal combustion engine</a> emissions measurement in stationary or portable instruments. </p>