Systems and methods for perfluoroalkyl and polyfluoroalkyl substances detection
AssigneeSchlumberger Technology Corporation
InventorsAlireza Zolfaghari, Jushik Yun
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Abstract
A method including preparing a surface of a substrate, wherein the surface of the substrate includes a carbonous material, controlling, via a control system, a LIG subsystem to generate a LIG modified area of the substrate, modifying, via an electrochemical subsystem, the LIG modified area of the substrate to generate a sensing area comprising one or more types of nanoparticles, and performing, via a SERS subsystem, detection of a spectral signature of one or more PFAS compounds on the sensing area.
Claims20
A method comprising:
- preparing a surface of a substrate, wherein the surface of the substrate comprises a carbonous material;
- controlling, via a control system, a LIG subsystem to generate a LIG modified area of the substrate;
- modifying, via an electrochemical subsystem, the LIG modified area of the substrate to generate a sensing area comprising one or more types of nanoparticles;
- and
- performing, via a SERS subsystem, detection of a spectral signature of one or more PFAS compounds on the sensing area.
A perfluoroalkyl and polyfluoroalkyl substances (PFAS) detection system, comprising:
- a PFAS detection platform comprising a sensing area, wherein the sensing surface comprises a modified laser-induced graphene (LIG) surface comprising one or more types of nanoparticles;
- and
- a surface enhanced Raman (SERS) subsystem comprising a SERS analyzer configured to detect a spectral signature of one or more PFAS compounds in a sample based on light interacting with the one or more PFAS compounds on a surface of the sensing area of the PFAS detection platform.
A PFAS detection system, comprising:
- a PFAS detection platform comprising a sensing area, wherein the sensing area comprises one or more areas of LIG and a plurality of nanoparticles;
- processing circuitry comprising one or more processors;
- and
- memory storing instructions, that when executed by the processing circuitry, cause the processing circuitry to
- detect, via the PFAS detection platform, a spectral signature of one or more PFAS compounds
- wherein detection of the spectral signature of the one or more PFAS compounds comprises excitation, via a SERS subsystem, of the sensing area of the PFAS detection platform to excite one or more vibrational modes of the PFAS compounds;
- and
- wherein excitation of the one or more vibrational modes of the PFAS compounds is enhanced based on the one or more LIG areas and the nanoparticles of the sensing area of the PFAS detection platform.
Dependencies are inferred from the claim text.