SPME & SPME Arrow
The techniques for rapid and solvent-poor enrichment of analytes.
Solid-Phase-Micro-Extraction SPME
The SPME (Solid Phase Micro Extraction) option enables the complete automation of the microextraction technique using the MultiPurposeSampler MPS.
All steps are performed automatically and are prepped ahead by the MAESTRO software in a time-efficient way. The SPME option impresses due to its low phase volume and short extraction times.
Functional principle of the SPME option
The MPS is fitted with a special SPME tool. Instead of a syringe, the SPME tool contains a fiber holder with a fiber inside. The adsorbent has been applied to the fiber. Enrichment can either be performed from the tray or in the agitator. When enriched in the agitator, the sample is heated for incubation purposes. To protect the adsorbent, a guide needle first pierces the septum of the vial, after which the fiber with the adsorbent is deployed. After enrichment, the analytes are thermally desorbed in the inlet or in the Thermal Desorption Unit TDU 2. Finally, the adsorbent is conditioned, either in the inlet or in the fiber conditioner. It is then ready for the next analysis.
Benefits
Analytes from a liquid sample or from the headspace above the sample can be enriched quickly using only a small quantity of solvent. All of the steps in the micro extraction technique SPME can be completely automated using the MPS. Manual intervention is not necessary. The low phase volume allows short extraction times. Online derivatization using the MPS is also possible. Thanks to the MAESTRO software, controlling the system as a whole is simple and intuitive.
Variants
Various adsorbents are available for the enrichment of different analytes.
All information also for download
SPME-Arrow
The SPME-Arrow option enables the complete automation of the solid phase micro extraction technique SPME-Arrow using the MultiPurposeSampler MPS. All steps are performed automatically and are prepped ahead by the MAESTRO software in a time-efficient way.
The SPME-Arrow option impresses due to its robust construction. Compared to the SPME option the phase volume is slightly larger and its sensitivity increased.
Functional principle of the SPME-Arrow option
The MPS is fitted with a special SPME-Arrow tool. Instead of a syringe, the SPME tool contains a fiber holder with a metal shaft and arrowhead. The adsorbent has been applied to the metal shaft. Enrichment can either be performed from the tray or in the agitator. When enriched in the agitator, the sample is heated for incubation purposes. To protect the adsorbent, the arrowhead first pierces the septum of the vial, followed by a protective tube. The protective tube is then retracted and the shaft containing the adsorbent is freely accessible. After enrichment, the analytes are thermally desorbed in the inlet. The inlet is fitted with a special head for that purpose. Finally, the adsorbent is conditioned, either in the inlet or in the fiber conditioner. It is then ready for the next analysis.
Benefits
Analytes from a liquid sample or from the headspace above the sample can be enriched quickly using only a small quantity of solvent. The arrowhead and the solid structure protect the adsorbent and make the technology very robust. All of the steps of the SPME-Arrow micro extraction technique can be completely automated using the MPS. Manual intervention is not necessary. The phase volume is larger than in the case of conventional SPME. Thanks to the MAESTRO software, controlling the system as a whole is simple and intuitive.
Variants
Various adsorbents are available for the enrichment of different analytes.
All information also for download