NEX CG II - High Performance EDXRF

Energy dispersive X-ray fluorescence spectroscopy (EDXRF) is a routinely used analytical technique for the qualitative and quantitative determination of the elemental composition of a large number of sample types. The main reason for the large variety of applications and frequency of use of X-ray fluorescence analysis (XRF) is that this analytical method enables fast and non-destructive multi-element analyses - from sodium Na to uranium U - to be performed. And this in a measuring range from a few ppm to high weight percentages.

The brand new NEX CG II EDXRF spectrometer delivers excellent results in a wide matrix range - from homogeneous, low viscosity liquids to solids, metals, powders, pastes and slurried samples coatings and thin films - with minimal sample preparation.
It is especially suitable for the semi-quantitative determination of element fractions in completely unknown samples. The X-ray fluorescence spectrometer is widely used in environmental analysis (determination of heavy metals), food analysis, research and industry.

System features:

  • Completely newly designed instrument with improved analytical performances:
    • Indirect excitation for exceptionally low detection limits
      • The only true Cartesian Geometry EDXRF on the market with X-ray paths at 90° angles (orthogonal) which is more efficient and creates polarization, putting all the X-rays all in one plane
      • 50 kV 50 W (NEX CG II) or 65 kV 100 W (NEX CG II+) Pd anode X-ray tube
      • 5 secondary targets and polarizers combined with a newly optimized Al target for a 10 times lower LOD for some elements.
      • Indirect Excitation suppresses the Bremsstrahlung Background across the entire energy range and increases the Signal-to-noise to deliver lower detection limits and improved precision and thus excellent FP performances
    • Most advanced large-area silicon drift detector (SDD)
      • high-throughput SDD with <135eV @ Mn K-alpha line
      • Digital pulse processor with user selectable shaping time
      • Delivers an increase sensitivity of at least a factor 2 for most elements compared to the first NEX CG generation, making the NEX CG II even comparable to some WDXRF for some applications.
    • Improved helium purge requiring only half of the flowrate (0.35 L/min) compared to the NEX CG
    • Newly developed sample changers with unique park position to avoid any risk of spillage after measurement available in 4 versions:
      • 15 positions 32mm
      • 10 positions 40mm
      • 10 positions 40mm with sample spinning
      • 9 positions 52mm for large samples like filters
  • Large Sample Chamber
    • 32.5 cm diameter x 7.5 cm deep
  • Reduced physical size by 40% and reduced weight by 18% compared to the first generation NEX CG
  • Powerful and easy to use QuantEZ software
    • Multilingual User Interface
    • LIMS
  • Low cost of ownership backed by a 2-year warranty