Method and device for calibrating a fluid detector having a preconcentrator

A method for calibrating a measurement process for a measurement system comprising a fluid detector, which is provided with a preconcentrator and a fluid sensor, wherein the measurement system for detecting a concentration of a substance to be detected is configured to have a sorption phase, during which the fluid to be detected is enriched for a sorption duration (t) in the preconcentrator in a first state, and a measurement phase, in which a concentration of the substance to be detected resulting from the release of the substance to be detected that was enriched in the preconcentrator is measured, wherein the fluid detector is calibrated by adjusting the sorption duration (t).

A device for calibrating a measurement process for a measurement system comprising a fluid detector, which is provided with a preconcentrator and a fluid sensor, wherein the measurement system for detecting a concentration of a substance to be detected is configured to have a sorption phase, during which the fluid to be detected is enriched for a sorption duration (t) in the preconcentrator in a first state, and a measurement phase, in which a concentration of the substance to be detected resulting from the release of the substance to be detected that was enriched in the preconcentrator is measured, wherein the device is configured to calibrate the fluid detector by adjusting the sorption duration (t).

A measurement system comprising a fluid detector having a preconcentrator and a fluid sensor in a chamber opened to the environment through an inlet opening, and a control unit configured to perform a measurement process for detecting a concentration of a substance to be detected with a sorption phase, during which the fluid to be detected is enriched for a sorption duration (t) in the preconcentrator in a first state, and a measurement phase in which a concentration of the substance to be detected resulting from releasing the substance to be detected enriched in the preconcentrator is measured, wherein the control unit is configured to operate the fluid detector by variably adjusting the sorption duration (t).