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Title: Magnetically-induced solid-phase microextraction fiber actuation system for quantitative headspace and liquid sampling

A magnetically-induced SPME fiber actuation system includes a SPME fiber holder and a SPME fiber holder actuator, for holding and magnetically actuating a SPME fiber assembly. The SPME fiber holder has a plunger with a magnetic material to which the SPME fiber assembly is connected, and the magnetic SPME fiber holder actuator has an elongated barrel with a loading chamber for receiving the SPME fiber assembly-connected SPME fiber holder, and an external magnet which induces axial motion of the magnetic material of the plunger to extend/retract the SPME fiber from/into the protective needle of the SPME fiber assembly.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1358245
Assignee:
Lawrence Livermore National Security, LLC LLNL
Patent Number(s):
9,658,137
Application Number:
14/308,503
Contract Number:
AC52-07NA27344
Resource Relation:
Patent File Date: 2014 Jun 18
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Other works cited in this record:

Method and apparatus for detection of trace volatiles
patent, November 2006

Automatic solid-phase microextraction sampling apparatus
patent, August 2011

Fully automated in-tube solid-phase microextraction for liquid samples coupled to gas chromatography
journal, November 2004
  • Globig, Daniel; Weickhardt, Christian
  • Analytical and Bioanalytical Chemistry, Vol. 381, Issue 3, p. 656-659
  • DOI: 10.1007/s00216-004-2939-9

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