The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 13, 2020

Filed:

Apr. 25, 2019
Applicants:

Eth Zürich, Zürich, CH;

Paul Scherrer Institut, Psi, CH;

Inventors:

Detlef Günther, Zürich, CH;

Daniel Grolimund, Fulenbach, CH;

Hao Wang, Zürich, CH;

Assignees:

ETH ZÜRICH, Zurich, CH;

PAUL SCHERRER INSTITUT, Psi, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/10 (2006.01); G01N 33/68 (2006.01); H01J 49/00 (2006.01); H01J 49/40 (2006.01); G01N 33/60 (2006.01); G01N 33/574 (2006.01); H01J 49/04 (2006.01);
U.S. Cl.
CPC ...
H01J 49/105 (2013.01); G01N 33/57415 (2013.01); G01N 33/60 (2013.01); G01N 33/6848 (2013.01); H01J 49/0004 (2013.01); H01J 49/0031 (2013.01); H01J 49/04 (2013.01); H01J 49/0409 (2013.01); H01J 49/0459 (2013.01); H01J 49/0463 (2013.01); H01J 49/40 (2013.01);
Abstract

A laser ablation cell () comprises a flow channel () having an essentially constant cross-sectional area so as to ensure a strictly laminar flow in the flow channel. A sample chamber () is provided adjacent to a lateral opening () of the flow channel. A laser beam () enters the sample chamber () through a lateral window () and impinges on a surface () of a sample () to ablate material from the sample. The sample may be positioned in such a distance from the flow channel that the laser-generated aerosol mass distribution has its center within the flow channel. This leads to short aerosol washout times. The laser ablation cell is particularly well suited for aerosol generation in inductively coupled plasma mass spectrometry (ICPMS), including imaging applications.


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