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Rigaku NEX CG Cartesian geometry EDXRF spectrometer

Since 1951, Rigaku has been at the forefront of analytical and industrial instrumentation technology. Rigaku and its subsidiaries form a global group focused on life sciences and general purpose analytical instrumentation. With hundreds of major innovations to its credit, Rigaku and its subsidiary companies are world leaders in the fields of small molecule and protein crystallography, X-ray spectrometry and diffraction, X-ray optics, as well as semiconductor metrology. Rigaku employs over 1,100 people globally.

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NEX QC+ - Energy Dispersive X-ray Fluorescence Analyzer

New high resolution benchtop EDXRF
for rapid qualitative and quantitative elemental analysis

Self-contained NEX QC+ with built-in printer.

Rigaku NEX QC delivers rapid qualitative and quantitative determination of major and minor atomic elements in a wide variety of sample types:

• Analyze 11Na to 92U non-destructively
• Solids, liquids, alloys, powders and thin films
• 50kV X-ray tube
• High resolution SDD detector
• Smartphone style user interface
• Multiple automated tube filters
• Convienient built in thermal printer
• Unmatched performance-to-price ratio
• Optional fundamental parameters

For more demanding applications, or for situations where analysis time or sample throughput is critical, Rigaku offers the new NEX QC+ spectrometer. Employing the next generation silicon detector technology, the enhanced NEX QC+ affords significant improvement in elemental peak resolution and counting statistics, resulting in superior calibrations and measurement precision for the most challenging measurements.

EDXRF for quality control applications

Specifically designed for routine quality control applications, the new Rigaku NEX QC+ features an intuitive "icon-driven" touch screen interface for easy operation and a built-in printer for convenience.

EDXRF with high precision and broad elemental coverage

The shuttered 50kV X-ray tube and Peltier cooled semiconductor detector deliver exceptional short-term repeatability and long-term reproducibility with excellent element peak resolution. This high voltage capability (50 kV), along with multiple automated X-ray tube filters, provides a wide range of applications versatility and low limits-of-detection (LOD).

EDXRF with autosampler, helium and FP options

Options include fundamental parameters, automatic sample changer, sample spinner and helium purge for enhanced light element sensitivity.

Advanced Software

Sulfur in ULSD

Catalyst Recycling

Finished Cement


NEX QC+ for high performance quality control applications

Powerful icon driven software.

Available collimators and camera.

Single position, large sample or autosampler.

In addition to being remarkably easy to use, each Rigaku NEX QC series elemental analyzer is powered by sophisticated software running on an embedded computer. Empirical calibration curves may be linear, quadratic or hyperbolic fits.

To compensate for the presence of other elements, intensity-based or concentration-based alpha (α) corrections may be enabled (automatically calculated given sufficient standards).

C/H correction is also available to compensate for light element matrix changes and/or changes in average atomic number. All calibration functions are accessible via intuitive icons at the touch of a finger. An optional fundamental parameters (FP) package is available.

NEX QC series optical kernel
NEX QC series advanced optical kernel.

Sulfur in Ultra Low Sulfur Diesel (ULSD) - click to request a report

Sulfur by ISO 13032 Appnote
The analysis of sulfur in ULSD (ultra-low sulfur diesel) is demonstrated as per standard test method ISO 13032. Regulations around the world have limited the amount of sulfur in various fuels oils with particular attention to diesel fuel. For many years road diesel has been limited to a maximum sulfur concentration between 10-15 ppm, depending on the global region. Now these limits are expanded to all diesel fuel, including use in large engines and off-road diesel engines. The results shown here indicate the Rigaku NEX QC+ EDXRF analyzer gives excellent performance for the measurement of ULSD as per standard test method ISO 13032. The versatility of the NEX QC+ also make it an ideal tool for the measurement of many other elements and oil matrices as well, such as lube oils, wear metals in oils, used oil and waste oil, and other elemental analysis needs throughout the petroleum industry.

Automotive Catalyst Recycling - click to request a report

Pt, Rh, Pd in Catalysts Appnote
The measurement of Pt, Rh and Pd in recycled automotive catalytic converters is demonstrated using the Fundamental Parameters (FP) approach. Used catalytic converters are collected and recycled in order to reclaim the precious metals Pt, Rh and Pd. Typically, the entire honeycomb core is removed and ground into fine powder. Once in powder form, the precious metal catalysts can be extracted, or the powder can be sold to a refiner.

The honeycomb core is typically ceramic, containing combinations of the elements Al, Si, Fe, Zn, Sr, Zr, Ba, La and Ce. Some cores can be made of a stainless steel honeycomb and so would contain higher Fe and other metals. Catalyst material may also be high in Pb content, in regions where leaded gasoline is still used. Because all of these matrix elements can occur at various levels, the fundamental parameters software with matching Library offers quick direct analysis, of powdered catalytic converter cores, without the need for a large suite of calibration standards.

Finished Cement - click to request a report

Oxides in Finished Cement Appnote
The analysis of finished Portland cement is demonstrated using the empirical approach.X-ray fluorescence (XRF) spectroscopy is a well established technique used in cement plants around the world. The technique is ideal for quality control (QA/QC) throughout the cement production process. Energy dispersive X-ray fluorescence (EDXRF) spectrometry is a routinely employed screening and quality control tool employed to ensure proper composition of incoming feedstocks, raw meal mixture balances, addition of gypsum and throughout the manufacturing process. EDXRF analyzers are also commonly deployed as backup instruments for WDXRF spectrometers used for final QC and certification.

NEX QC+ Specifications

  • 50kV X-ray tube
  • 4W max power
  • 6 tube filter positions with shutter
  • High performance SDD semiconductor detector
  • Peltier thermo-electric cooling
  • High spectral resolution and count rate
Sample Chamber
  • Large 190 x 165 x 60 mm sample chamber
  • Single position 32 mm sample aperture
  • Single position 40 mm sample aperture
  • Bulk sample aperture
  • 6-position 32 mm automatic sample changer
  • 5-position 40 mm automatic sample changer
  • Single position 32 mm sample spinner
  • Analysis in air or helium
Environmental Conditions
  • Ambient temperature 10-35ºC (50-95ºF)
  • Relative humidity ≤85% non-condensing
  • Vibration: undetectable by people
  • Free from corrosive gas, dust and particles
Software & Application Packages
  • Qualitative and quantitative analysis
  • Normalization and validation feature
  • Fundamental parameters
  • Data export function with LIMS compatibility
  • User selectable shaping times
  • Simple flow bar wizard to create new applications
  • Icon driven graphical user interface
  • Password protection
User Interface
  • Embedded computer
  • Internal thermal printer
  • USB and Ethernet connections
Spectrometer Data
  • Single phase AC 100/220V, 1.4A (50/60 Hz)
  • Dimensions: 33.1(W) X 43.2(D) X 37.6(H) cm (13x17x14.8")
  • Weight: 16 kg (35 lbs)
  • 6-position 32 mm automatic sample changer
  • 5-position 40 mm automatic sample changer
  • Single position 32 mm sample spinner
  • Helium purge
  • Fundamental parameters
  • 2MP CMOS camera w/ manual collimators

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