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Solid Phase Micro Extraction SPME
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Automated SPME using the GERSTEL MPS Solid Phase Micro Extraction (SPME) is a widely used technique for extraction and concentration of VOCs and SVOCs combined with GC/MS. SPME is especially useful in the food, flavor and beverage industries and for environmental monitoring. GERSTEL is a leading provider of SPME automation. Our systems are optimized for performance and throughput in every step of the SPME process. Up to 128 samples placed in standard Headspace vials can be analyzed in one batch.
 
Details:
Extraction:

Sample agitation with stir bars accelerates the extraction process
and improves throughput. Mechanical fiber stress is reduced, leading to
longer fiber life expectancy and improved instrument up-time. The
PrepAhead function allows samples to be prepared in advance while the
GC run is ongoing for improved throughput and system utilization. In
addition, samples can be heated or cooled during storage and
extraction, which is highly useful, for example, for fresh food
samples.

Desorption:

The Cooled Injection System (CIS) is
a PTV-type GC inlet, perfectly suited for SPME analysis. The
narrow-bore inlet liner ensures highly efficient analyte transfer to
the GC/MS for best possible detection limits and separation efficiency.
The patented Septum-Less Head (SLH greatly reduces mechanical stress on
the SPME fiber, extending its life expectancy. Septum coring and
background peaks from septum material are eliminated, leading to better
limits of detection and programmed heating helps ensure that analytes
are introduced to the GC without thermal breakdown.
 
Efficient integrated control software:

MAESTRO
software supports a wide range of techniques including SPME. The
PrepAhead function optimizes productivity and throughput: Samples are
prepared just in time in parallel to the GC/MS run. Every sample is
introduced exactly when the analysis system becomes ready for best
possible system utilization and sample throughput. Priority samples can
be inserted without halting the sequence. MAESTRO can be operated
independently or integrated with the Agilent Technologies ChemStation.
Just one method and one sequence table runs the complete system from
SPME to GC/MS analysis.

Visibility and overview:

The MAESTRO Scheduler provides a graphical overview of SPME steps
and the total analysis time for the entire batch of samples, making it
easy to plan your laboratory work. The effect of any change to the
method on productivity is immediately seen on the display, making it
easier to optimize throughput. Several user support functions are
included: Context sensitive on-line help for easy set-up and log
functions for traceability and trouble-shooting. Remote viewing
software enables more efficient support by the GERSTEL hot-line.

Multi-Fiber Exchange (MFX) flexibility:

The GERSTEL Multi Fiber Exchanger MFX is
a unique automated fiber exchange option for the GERSTEL MPS. Using
MFX, automated SPME analysis of a sample can now be performed using
fibers with different polarity, covering a wide range of analytes and
extracting the maximum amount of information. MFX is available with a
25-fiber option for analysis of fibers that are used for remote
sampling.

On-Fiber Derivatization:

Using the MPS, a derivatization reagent can be added to the fiber
prior to or following the extraction step. These tasks are simply
selected by mouse-click in the MAESTRO software.
Conditioning:
Automated conditioning in the CIS or in the MPS bake-out station
ensures that the fiber is always clean and ready for the next sample.
Well conditioned SPME fibers provide best possible analysis results and
best limits of detection.
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