Detection Instrument
Sensor used in gas chromatography that measures the concentration of organic compounds by detecting ions formed during the combustion of the sample in a hydrogen flame. A flame ionization detector responds to almost all carbon containing compounds, making it a universal tool for checking the purity of solvents and coatings in the paper industry. The resulting electrical signal is proportional to the number of carbon atoms passing through the flame.
Quantification Accuracy
Wide linear range of the sensor allows for the measurement of both trace impurities and major components in a single analysis. Technicians use a flame ionization detector to determine the total amount of volatile organic compounds released from a printed board during the drying process. This measurement helps mills and converters stay within the environmental emission limits set by local authorities.
Because the detector is reliable and easy to maintain, it is the standard choice for routine quality control in packaging manufacturing.
Operation Mechanism
Mixing the column effluent with hydrogen and air creates a high temperature flame that pyrolyzes the organic molecules. This process produces ions that carry a current between two electrodes, which the electronics then amplify into a peak on the chromatogram. The simplicity of the flame ionization detector means it is less sensitive to common impurities like water or air than other more specialized sensors.
Sensitivity remains consistent during long runs.
