Delivering the right results of VOCs

8910 Preconcentrator

The 8910 has the most advanced hardware and software with unique features for the analysis of compounds listed in EPA Methods TO-14 and TO-15. Functionality and longevity were the main goals in the development of Nutech®’s preconcentrator.

    Technical Data

    Detection limit


    Loading range


    Concentration ratio


    Temperature control

    ±2℃ accuracy



    Heating rate


    Operating environment

    110v/60hz or 220v/50hz±10% with max 2000w

    Three stage cryogenic traps

    Glass bead:  -190℃ to 250℃,

    Tenax multimedia trap:   -190℃ to 250℃,

    Cryofocuser:   -190℃ to 250℃


    ■ Strong Practicability and Wide Application Range

    The 8910 adopts classical 3-stage module (two cryogenic traps and one cryofocuser) and new generation of advanced H2O&CO2 management technology, its preset TO-15, PAMS and sulfide analysis methods can fully meet the requirements of US EPA method without any changes or accessories upgrades, and elevates the preconcentrator to a whole new level.

    The 8910 adopts vacuum negative pressure for automatic suction and injection, MFC operating range 5-120ml/min with ±2% accuracy with an optional customized flow range . Its ultra-wide injection range (4-2000 ml, with quantitative ring injection valve, the minimum injection volume can be as low as 0.2ml), easily meets the pretreatment requirements of different sample volumes.

    ■ High Sensitivity

    It has a concentration rate of more than 1000 times and effectively raises the detection limit of GC or GC-MS.

    The advanced temperature control keeps the variation under ±2℃, assuring stable and accurate analysis.

    The pipeline, valve and other flow path components are inert, durable and corrosion-resistant, eliminating unwanted carryover and chemical reactions, minimizing sample contamination and ensuring complete recovery.

    ■ High Automatic, Powerful Software

    The software is powerful, user-friendly and easy to operate. The system has the ability to perform automatic leak checking, generate reports, and alarm errors automatically. It can automatically display operation status, record process data, and supports QC/QA report printing.

    ■ Good Compatibility, Powerful Extended Function

    The 8910 is highly flexible for users to establish a new analytical method based on the presupposed standard analytical method according to the application needs. It is compatible with different types of GC or GC-MS in the market, can be used independently or connected to the automatic sampler.

    ■ Long-term Stable Operation

    Internal structure optimization module design, effective isolation of temperature control module and sensitive components, liquid nitrogen valve external, effectively avoid abrupt change and condensate interference or even rust on electronic components, to ensure long-term stable operation of the instrument.

    The small volume trap is designed, so that its temperature and liquid nitrogen flow control mode are optimized. The liquid nitrogen loss is small and the replacement is convenient.