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Versatile and fully automated solution for highly reproducible spiking of 3.5” TD tubes, including GERSTEL 3.5+ tubes, with liquid or gaseous standards as prescribed in international standard air monitoring methods. 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. This system provides automatic, accurate and reproducible spiking of 3.5“ TD tubes with both gaseous and liquid samples. The GERSTEL ISDP+ meet requirements and recommendations of standard TD methods, extending the scope of your TD analysis and making it more efficient.

Features and benefits of the GERSTEL ISDP+:

1. Spiking of TD tubes

  • Choice of liquid or gaseous standards:
    Use the system in a flexible manner for a wide range of applications without labor intensive operator interaction
  • Automated TD tube spiking with variable volumes:
    Flexible use for validation, calibration, and QC standards for improved analytical quality and quality assurance
  • Spiking in sampling direction just before analysis or in batch mode:
    Proven methodology that reduces analysis time with maximum flexibility
  • Automated generation of calibration series:
    Automate almost the entire workflow for reproducible and reliable analysis
  • Leak test:
    To avoid sample loss and erroneous results, a system leak test is performed

2. Drying of TD tubes

  • Fast and efficient drying:
    Collect and analyze samples with high moisture content while minimizing risk of negative impact on your analysis
  • Overlapping drying and analysis:
    No loss of throughput thanks to parallel processing of the drying step during analysis of the preceding sample
  • Drying in sampling flow direction:
    Proven method as prescribed in standard methods to minimize loss of analytes during drying

The GERSTEL ISDP+ has proven its worth:

  • in a VOC analysis proficiency test in accordance with DIN ISO 16000-6
  • for VVOC analysis in accordance with U.S. EPA Method TO-17

Automate and upgrade your TD analysis with GERSTEL ISDP+ for a future-proof laboratory!

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The GERSTEL ISDP provides precise, reproducible, and fully automated addition of gaseous internal standards using GERSTEL TD 3.5+ tubes and other 3.5” tubes delivered via a high precision regulator and a fixed volume loop. The addition of gaseous internal standards via the ISDP is often recommend in methods for air analysis, such as US EPA TO-17. In addition to adding internal standards, the GERSTEL ISDP also uses a mass flow controller for precise and reproducible dry purging of the tube in the sampling direction to remove water from humid air samples.

Features and benefits of the GERSTEL ISDP:

Spiking with gaseous internal standards

  • Automated spiking of gaseous standards:
    Our system allows for the easy, precise, and reproducible spiking using a valve and loop with a high precision, built-in gas regulator.
  • Easy handling – Plug & Play:
    By using electronic flow control, spiking and dry purging are fully automated and controlled by the TD method.
  • Modern Approach:
    Spike and Dry Purge tubes with electronic controls, without time-consuming manual adjustment of pressure regulators or needle valves.
  • Method compliance:
    Spike your TD tubes with gaseous internal standards as recommended or required by many standard air analysis methods, such as U.S. EPA TO-17.
  • Spiking in sampling direction either just before analysis or in batch mode:
    Internal standards are added to the tube in the same direction as they anaytes were, for consistency and improved recovery.

Dry Purging

  • Fast and efficient drying:
    Remove water from high humidity samples without losing analytes.
  • Prep-ahead:
    Spike and dry purge one sample while another is running to increase your workflow’s throughput.
  • Reliable and Repeatable drying:
    Using calibrated, mass flow controlled purge gas flows ensures the same volumes all gases are added, run to run, instrument to instrument.

Fully Method Compliant:

  • Fully compliant with internal standard parameters recommend in U.S. EPA Method TO-17 and other related methods

Automate your Thermal Desorption analysis with our TD Core system and GERSTEL ISDP to eliminate the last and most annoying step of your workflow!

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