Offline solid phase microextraction sampling system

Details Offline solid phase microextraction sampling system Offline solid phase microextraction sampling system

2006-05-18

2008-12-16

Williams, Hezron (Department: 2856)

Measuring and testing

Sampler, sample handling, etc.

Withdrawing through conduit or receptacle wall

C073S863850, C073S863860

Reexamination Certificate

active

07464614

ABSTRACT:
An offline solid phase microextraction (SPME) sampling apparatus for enabling SPME samples to be taken a number of times from a previously collected fluid sample (e.g. sample atmosphere) stored in a fused silica lined bottle which keeps volatile organics in the fluid sample stable for weeks at a time. The offline SPME sampling apparatus has a hollow body surrounding a sampling chamber, with multiple ports through which a portion of a previously collected fluid sample may be (a) released into the sampling chamber, (b) SPME sampled to collect analytes for subsequent GC analysis, and (c) flushed/purged using a fluidically connected vacuum source and purging fluid source to prepare the sampling chamber for additional SPME samplings of the same original fluid sample, such as may have been collected in situ from a headspace.

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Chris A. Harvey et al, Offline Solid Phase MicroExtraction (SPME) IM-320937-1; Jun. 16, 2005 pp. 1-14.

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