ISDP+

ISDP⁺

Internal Standards and Dry Purge

The GERSTEL ISDP and ISDP⁺ can spike each thermal desorption tube with a known, fixed amount of gas or liquid standard; then, each tube is purged with a drying gas to remove water captured in the tube when humid air is sampled or solvent if the tube is spiked with liquids.

ISDP⁺

The GERSTEL ISDP⁺ is a versatile and fully automated solution for highly reproducible spiking of 3.5” TD tubes, including GERSTEL 3.5⁺ tubes, with liquid or gaseous standards. The fast and efficient dry purge function eliminates doubt when analyzing samples with high moisture content while maintaining high throughput. The GERSTEL ISDP⁺ provides both standard spiking and dry purge functions for 3.5” TD tubes, including GERSTEL TD 3.5⁺ tubes. The GERSTEL ISDP⁺ meets the requirements and recommendations of standard TD methods, extending the scope of your TD analysis and making it more efficient.

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Application Notes

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Main Features and Advantages

Fully automated spiking of
calibration/QC/validation standards
Higher data quality when using internal standards
Gas or liquid standards can be used, utilizing syringes to inject
either fixed or variable volumes of standards
Improved performance and quality with dry purging

Eliminate time and effort in spiking tubes for both targeted (regulated) methods and non-targeted methods.

GERSTEL’s advanced ISDP⁺ system uses the latest in flow control technology. It allows the use of gas and liquid standards and eliminates the time required to build calibration curves and manually spike tubes.