公开(公告)号：US11247295B1

公开(公告)日：2022-02-15

申请号：US17073292

申请日：2020-10-16

Applicant: Applied Spectra, Inc.

Inventor： Alexander A. Bol'shakov ,  Chunyi Liu ,  Sudeep J. Pandey ,  Richard E. Russo

IPC: B23K26/04 ,  G01N21/71

Abstract: Methods of liquid and solid materials analysis by laser induced ablation spectroscopy are disclosed. The liquid and solid materials are analyzed in an instrument having one pulsed laser to produce emissive plasma plumes and ablate solid material. Liquid phase samples are aerosolized before streaming to an analysis zone where they are dissociated into a plasma plume. A large number of sites within solid phase sample structures and be analyzed using a movable x-y-z stage and displayed in a chemical map.

公开(公告)号：US11085882B1

公开(公告)日：2021-08-10

申请号：US17073289

申请日：2020-10-16

Applicant: Applied Spectra, Inc.

Inventor： Alexander A. Bol'shakov ,  Chunyi Liu ,  Sudeep J. Pandey ,  Richard E. Russo

IPC: G01N21/71 ,  B23K26/04 ,  H01J49/04 ,  H01J49/10 ,  H01J49/00

Abstract: Portable instruments for analyzing elemental composition of liquid and solid phase materials by laser induced ablation spectroscopy are disclosed. The optical path of a single pulsed laser beam in the instrument is directed to a position depending on the phase of the sample material. Liquid phase samples are aerosolized before streaming to an analysis zone where they are dissociated in a plasma plume. A wide range of physical and chemical characteristics of liquid materials can be analyzed by the instruments. A large number of sites within solid phase sample structures are analyzed using a movable x-y-z stage in the instrument and the results are displayed in a chemical map.

公开(公告)号：US10281406B1

公开(公告)日：2019-05-07

申请号：US14864844

申请日：2015-09-24

Applicant: Applied Spectra, Inc.

Inventor： Richard E. Russo ,  Jong Hyun Yoo ,  Chunyi Liu

IPC: G01N21/71 ,  G01N33/02 ,  G01J3/443 ,  G01N21/85 ,  G01N21/84

Abstract: A method and apparatus for analyzing one or more elements of targeted moving food surfaces uses laser-induced breakdown spectroscopy to detect the presence, absence, or amount of an element on a heterogeneous surface of an object, including surfaces of food products. A laser is used to quantify an element concentration without destroying the object. The method can be configured to include an automated on-line system comprising a closed-loop feedback control system operable to select a predetermined concentration.

公开(公告)号：US09678015B2

公开(公告)日：2017-06-13

申请号：US14865413

申请日：2015-09-25

Applicant: Frito-Lay North America, Inc. ,  Applied Spectra, Inc.

Inventor： Scott Fagan ,  Paul Allan Martin ,  Scotty G. Richardson ,  Richard E. Russo ,  Chen C. Shao ,  Jong Hyun Yoo ,  Chunyi Liu

IPC: G01J3/30 ,  G01N21/84 ,  G01N21/71 ,  G01N21/85 ,  G01J3/443 ,  G01N33/02

CPC classification number: G01N21/84 ,  G01J3/443 ,  G01N21/718 ,  G01N21/85 ,  G01N33/02 ,  G01N2021/845 ,  G01N2201/129

Abstract: A method and apparatus for analyzing one or more elements of targeted moving snack food surfaces uses laser-induced breakdown spectroscopy to detect the presence, absence, or amount of an element on a heterogeneous surface, including seasoned and ready-to-eat snack foods. A laser is used to quantify the element concentration without destroying the targeted sample. An automated on-line system may be integrated into the method to create a closed-loop feedback control system, adjusting the concentration as desired.