公开(公告)号：US11002665B2

公开(公告)日：2021-05-11

申请号：US16465824

申请日：2017-11-29

Applicant: Photothermal Spectroscopy Corp.

Inventor： Craig Prater ,  Kevin Kjoller ,  Roshan Shetty

IPC: G01N21/17 ,  G01J3/28 ,  G01J3/427 ,  G01J3/44 ,  G01N21/64 ,  G01N21/65

Abstract: System for performing chemical spectroscopy on samples from the scale of nanometers to millimeters or more with a multifunctional platform combining analytical and imaging techniques including dual beam photo-thermal spectroscopy with confocal microscopy, Raman spectroscopy, fluorescence detection, various vacuum analytical techniques and/or mass spectrometry. In embodiments described herein, the light beams of a dual-beam system are used for heating and sensing.

公开(公告)号：US20250020569A1

公开(公告)日：2025-01-16

申请号：US18350690

申请日：2023-07-11

Applicant: Photothermal Spectroscopy Corp.

Inventor： Craig Prater ,  Kevin Kjoller ,  Eoghan Dillon ,  Andrew Stuart

IPC: G01N15/14

Abstract: Detection of microplastics is accomplished using a combination of techniques. A position-detection technique such as crossed-polarization detection, autofluorescence detection, or photothermal infrared imaging is used to determine the locations of microplastics in a sample. Infrared absorption can be detected at those locations to characterize the microplastics. In this way the microplastic content can be located and characterized more quickly and accurately than using conventional techniques.