The DHS 3.5+ option allows the dynamic headspace technique to be performed automatically using the MultiPurposeSampler MPS. Using the DHS 3.5+ option, you can enrich volatile or semi-volatile analytes from the headspace above a liquid, viscous or solid sample on an adsorbent, while simultaneously separating off the moisture. The DHS 3.5+ option impresses due to its full temperature control and its compact design with no cold or active points along the sample path. The DHS 3.5+ option offers a broad range of applications. The assignment of samples to sorbent tubes is freely selectable. Using specially adapted and automated thermal desorption in the TD 3.5+, the analytes can be analyzed immediately after enrichment. The system is controlled using the MAESTRO software. The DHS 3.5+ option is compatible with the 3.5-inch tubes used in the industry as standard.
Functional principle of the DHS 3.5+ option
The sample is tempered inside a sealed vial. At a pre-determined time, the MPS positions a sorbent tube above the vial. The vial and the tube are connected together in accordance with the wash-bottle principle. A permanent gas stream continually purges the gaseous analytes from the headspace above the sample and conveys them upwards into the sorbent tube. The assignment of samples to sorbent tubes is freely selectable. Depending on the settings, all or only some of the analytes from a sample will be collected in a sorbent tube. The enrichment of the analytes from multiple samples into a single sorbent tube is also possible.
Benefits
Analytes from the headspace above a liquid, viscous or solid sample are continually enriched on an adsorbent. A wide variety of adsorbents can be used for enrichment. The full temperature control allows the analytes to be specifically separated from the sample matrix and from moisture. The compact design prevents the loss or carryover of analytes and reduces the amount of maintenance required. The DHS 3.5+ option is very powerful. Due to the continuous headspace extraction, a significantly larger quantity of analytes is enriched on the adsorbent than is the case when using conventional headspace technology. Thanks to the MAESTRO software, controlling the system as a whole is simple and intuitive.
Variants
The DHS 3.5+ option can be used with vials of different sizes. Tubes containing different adsorbents are available for the enrichment of analytes.
Options
The DHS Large option allows the DHS 3.5+ option to extended to accommodate a large-volume sample. Using the DHS Large Sampler option, analytes from multiple large-volume samples can be enriched completely automatically.
The DHS Large option is an expansion of the DHS and DHS 3.5+ options for the MultiPurposeSampler MPS. It includes a special sample heater that is installed on the DHS station. The DHS Large option therefore allows volatile and semi-volatile analytes from the headspace above a large-volume, solid sample to be enriched. Sample vessels are available in a variety of sizes to optimize the enrichment of the analytes. Using specially adapted and automated thermal desorption, the analytes can be analyzed immediately after enrichment. The system is controlled using the MAESTRO software.
Functional principle of the DHS Large option
The solid is tempered in an sealed, airtight sample vessel. At a pre-determined time, the MPS positions a sorbent tube above the sample vessel. The sample vessel and the tube are connected together in accordance with the wash-bottle principle. A permanent gas stream continually purges the gaseous analytes from the headspace above the sample and conveys them upwards into the sorbent tube. The assignment of samples to sorbent tubes is freely selectable. Depending on the settings, all or only some of the analytes from a sample will be collected in a sorbent tube. The enrichment of the analytes from multiple samples into a single sorbent tube is also possible.
Benefits
Analytes from the headspace above a solid sample are continually enriched on an adsorbent. A wide variety of adsorbents can be used for enrichment. The full temperature control allows the analytes to be specifically separated from the sample matrix. The compact design prevents the loss or carryover of analytes and reduces the amount of maintenance required. The DHS or DHS 3.5+ options can also be operated with the expansion installed. The DHS Large option can be retrofitted at any time. Thanks to the MAESTRO software, controlling the system as a whole is simple and intuitive.
Variants
The DHS Large option can be used with sample vessels of different sizes. Tubes containing different adsorbents are available for the enrichment of analytes.
Options
Using the DHS Large Sampler option, analytes from multiple large-volume samples can be enriched completely automatically.
The DHS option allows the dynamicheadspace technique to be performed automatically using the MultiPurposeSampler MPS. Using the DHS option, you can enrich volatile or semi-volatile analytes from the headspace above a liquid, viscous or solid sample on an adsorbent, while simultaneously separating off the moisture. The DHS option impresses due to its full temperature control and its compact design with no cold or active points along the sample path. The DHS option offers a broad range of applications. The assignment of samples to sorbent tubes is freely selectable. Using specially adapted and automated thermaldesorption in the TDU 2 the analytes can be analyzed immediately after enrichment. The system is controlled using the MAESTRO software.
Functional principle of the DHS option
The sample is tempered inside a sealed vial. At a pre-determined time, the MPS positions a sorbent tube above the vial. The vial and the tube are connected together in accordance with the wash-bottle principle. A permanent gas stream continually purges the gaseous analytes from the headspace above the sample and conveys them upwards into the sorbent tube. The assignment of samples to sorbent tubes is freely selectable. Depending on the settings, all or only some of the analytes from a sample will be collected in a sorbent tube. The enrichment of the analytes from multiple samples into a single sorbent tube is also possible.
Benefits
Analytes from the headspace above a liquid, viscous or solid sample are continually enriched on an adsorbent. A wide variety of adsorbents can be used for enrichment. The full temperature control allows the analytes to be specifically separated from the sample matrix and from moisture. The compact design prevents the loss or carryover of analytes and reduces the amount of maintenance required. The DHS option is very powerful. Due to the continuous headspace extraction, a significantly larger quantity of analytes is enriched on the adsorbent than is the case when using conventional headspace technology. Thanks to the MAESTRO software, controlling the system as a whole is simple and intuitive.
Variants
The DHS option can be used with vials of different sizes. Tubes containing different adsorbents are available for the enrichment of analytes.
Options
The DHS Large option allows the DHS option to extended to accommodate a large-volume sample. Using the DHS Large Sampler option, analytes from multiple large-volume samples can be enriched completely automatically.
