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

Patent ·
OSTI ID:1358245
; ;

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.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC
Patent Number(s):
9,658,137
Application Number:
14/308,503
OSTI ID:
1358245
Resource Relation:
Patent File Date: 2014 Jun 18
Country of Publication:
United States
Language:
English

References (4)

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
Determination of thymol in human plasma by automated headspace solid-phase microextraction–gas chromatographic analysis journal February 2002

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