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Solid Phase Microextraction
SPME-FFA Holder/Sampler and Storage Container
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With the introduction of the SPME-Fast Fit Fiber Assemblies (FFA) and their ability to be automatically exchanged and desorbed on a CTC type Autosampler using a Multi Fiber EXchange System (MFX) the FFAs open a new dimension for SPME field sampling. Two dedicated fiber holders for the FFA allow for particular types of field sampling:
Both holders incorporate a built-in PTFE sealing mechanism ensuring fiber condition and sample integrity during transport. This mechanism relies on a PTFE Sealing Cup into which the SPME fiber tip is placed for sealing during transport to and from the sampling site.
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Additionally, there are SPME Storage containers for FFAs and common SPME fibers available employing the same sealing mechanism.
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PTFE Sealing Mechanism
All devices are equipped with the unique Chromline sealing mechanism using a spring loaded PTFE Sealing Cup (Fig.1) that ensures a tight seal of the SPME piercing needle and thereby maintain fiber condition during transport and allowing sample storage on the fiber.
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The PTFE sealing cup is available for all types of SPME fiber assembly piercing needles: 23ga beveled or blunt tip, 24ga blunt tip. Notches on the cup body identify the type.
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All devices are equipped with the unique Chromline sealing mechanism using a spring loaded PTFE Sealing Cup (Fig.1) that ensures a tight seal of the SPME piercing needle and thereby maintain fiber condition during transport and allowing sample storage on the fiber.