Detector for detecting analytes in gas phase comprising porous dielectric or semiconducting sorbent and corresponding detection method
AssigneeSensorhut Ltd
InventorsTanya Hutter, William Thomas Winter
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Abstract
A detector for, and a method of, detecting analytes in gases in described. The detector comprises a sorbent for sorbing therein and/or thereon and/or desorbing therefrom, an analyte included in a gas exposed thereto, at a zeroth temperature, pressure (T0, P0), a controller arranged to change the zeroth temperature, pressure (T0, P0) to a first temperature, pressure (T1, P1) according to a first equation, to desorb and/or sorb at least some of the analyte; and a sensor arranged to sense at least some of the analyte and to output a response corresponding to the sensed analyte. The response comprises and/or is a characteristic response of the analyte.
Claims20
A detector for detecting analytes in gas-phase, comprising:
- a first sorbent of a set of sorbents, wherein the first sorbent comprises and/or is a microporous and/or mesoporous dielectric or semiconducting material such as silica or silicon, a zeolite, activated carbon and/or a metal organic framework, MOF, for sorbing therein and/or thereon and/or desorbing therefrom, a first analyte of a set of analytes included in a first gas of a set of gases exposed thereto, at a zeroth temperature, pressure (T0, P0) of a set of temperatures, pressures (T, P), wherein the first gas is ambient air;
- a cooler configured to cool the first sorbent to the zeroth temperature (T0);
- a controller configured to change the zeroth temperature, pressure (T0, P0) to a first temperature, pressure (T1, P1) of the set of temperatures, pressures (T, P) according to a first equation of a set of equations, to desorb and/or sorb at least some of the first analyte;
- and
- a sensor configured to sense at least some of the first analyte and to output a first response of a set of responses corresponding to the sensed first analyte,
- wherein:
- the sensor comprises and/or is an optical detector, for example an IR or a UV detector and/or an ion spectrometer;
- and
- the first response comprises and/or is a first characteristic response of a set of characteristic responses of the first analyte.
A method of detecting analytes in gas-phase, comprising:
- exposing a first sorbent of a set of sorbents, wherein the first sorbent comprises and/or is a microporous and/or mesoporous dielectric or semiconducting material such as silica, a zeolite, activated carbon and/or a metal organic framework, MOF, to a first gas of a set of gases, at a zeroth temperature, pressure (T0, P0) of a set of temperatures, pressures (T, P), wherein the first gas is ambient air;
- cooling the first sorbent to the zeroth temperature (T0) and sorbing by the first sorbent, therein and/or thereon, a first analyte of a set of analytes included in the first gas;
- desorbing and/or sorbing at least some of the first analyte by controlling a change from the zeroth temperature, pressure (T0, P0) to a first temperature, pressure (T1, P1) of the set of temperatures, pressures (T, P) according to a first equation of a set of equations;
- and
- sensing, by a sensor, at least some of the first analyte and outputting a first response of a set of responses corresponding to the sensed first analyte,
- wherein:
- the sensor comprises and/or is an optical detector, for example an IR or a UV detector and/or an ion spectrometer;
- and
- the first response comprises and/or is a first characteristic response of a set of characteristic responses of the first analyte.
Dependencies are inferred from the claim text.