Product Datasheet Gateway 6-Reflection Horizontal ATR A multibounce ATR with a large area crystal The larger crystal area and multiple reflection ATR gives the Gateway increased sensitivity to low absorbing components in more complex matrices, such as food and biological samples. Advanced options for heated and flowing samples are available. Large area ATR crystal with 6 reflections Increases the effective pathlength and allows for sampling of heterogeneous or slightly absorbing samples such as oils, foodstuffs, and solutions containing suspended solids or microorganisms. Interchangeable top-plates Control of temperature and sample flow rate can be achieved with various designs of crystal plate. The crystal itself can be ZnSe, Ge, or Si. Pressure clamp for solid samples Applies a load to ensure good contact with the ATR crystal. Purgeable optics to reduce atmospheric interference Advanced sampling options Electrically heated trough plate A trough plate for measuring static samples under open conditions at temperatures up to 200 °C. Fluid heated trough plate Heated by circulating fluid for greater thermal stability. Can be heated to 90 °C. Liquid flow-through plate (heated) Plate is fitted with a 550 µL chamber for flowing samples over the ATR crystal. Can be heated to 90 °C via a thermocirculating fluid. Application: analysis of Yeasts  Multibounce ATR is useful for sampling of whole organisms such as yeasts and other bacteria in aqueous suspensions.  The low spatial coverage of organisms in the solution is mitigated by the larger crystal area of the Gateway ATR, which gives more reproducible results for inhomogenous samples.  The ability to control the temperature via a thermostabilised top-plate allows for careful subtraction of water signals from the aqueous solutions. Liquid flow-through plate (unheated) Unheated sample chamber of 550 µL volume for flowing samples over the ATR crystal.

Product Datasheet Specifications Feature Sampling area ZnSe, Si, or Ge Isolast (trough plates) epoxy resin (flat plates) Sealing materials Materials Zinc Selenide (ZnSe) Silicon (Si) Germanium (Ge) Refractive index Effective Pathlength for 6 bounces 26.1 μm Note: values for depth of penetration and effective pathlength assume a sample refractive index of 1.5. See our tech note TN21-02 for more information. Flat versus Trough plates Flat plate These plates are good for powder and solid samples that require close, firm contact with the crystal. The pressure clamp provided as standard with the accessory...