X-ray fluorescence spectrometers use high-energy X-rays (or gamma rays) to excite fluorescent radiation from a sample for quantitative chemical or elemental analysis and have many industrial and research applications. Elements with an excitation energy less than the x-ray beam fluoresce and can be counted by a wavelength-dispersive or energy-dispersive spectrometer. The advantages of X-ray fluorescence spectrometers are that there is no need for sample prep (the material can simply be placed in the beam), and that it is a non-destructive analysis technique. This is ideal for fields like archeology, where destructive analytical methods are not an option. X-ray spectrometers are also gaining importance in response to increasing demand for lead testing in consumer products. Speed and sensitivity are prime considerations in choosing an X-ray fluorescence spectrometer. Ease of use and good analytical software are also important.
Find, compare, and request a quote for XRF analyzers across leading suppliers at Labcompare; including access to product citations, related published figures, and first-hand reviews from our scientific community.
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| Company | Rigaku Corporation | Rigaku Corporation | Rigaku Corporation |
| Item | NEX CG II Series Indirect Excitation EDXRF Spectrometers | NANOHUNTER II Benchtop TXRF Spectrometer | ZSX Primus III NEXT High-Throughput/Affordable WDXRF Spectrometer |
| Catalog Number | NEX CG II Series | | ZSX Primus III NEXT |
| Price | | | |
| Principle | Energy Dispersive X-ray Fluorescence (EDXRF) | TXRF | Wavelength dispersive |
| X-Ray Tube | End window Pd anode, 50 kV 50 W or 65 kV 100 W | Mo anode, 600W | End window type Rh target 3 kW |
| Goniometer Type | Inquire | N/A | Inquire |
| Detector(s) | Large-area high-throughput silicon drift detector (SDD) | Silicon drift detector (SDD) | SC (Scintillation counter), F-PC (Gas flow proportional counter)
Optional: S-PC LE (Gas sealed proportional counter: does not require P-10 gas) |
| Analysis Diameter | Inquire | N/A | Inquire |
| Description | The Rigaku NEX CG II Series are powerful XRF spectrometers that push the boundaries of EDXRF technology. They deliver rapid, non-destructive multi-element analyses (Na to U) from trace concentrations up to the percent level. The Cartesian configuration and indirect excitation provide increased The Rigaku NEX CG II Series are powerful XRF spectrometers that push the boundaries of EDXRF technology. They deliver rapid, non-destructive multi-element analyses (Na to U) from trace concentrations up to the percent level. The Cartesian configuration and indirect excitation provide increased signal-to-noise, even for challenging samples, making them an excellent choice for industrial quality control to advanced research applications.
NEX CG II Series are multi-purpose elemental analyzers that provide rapid qualitative and quantitative elemental analyses and address needs across many industries. They are suited to chemical analysis in almost any matrix — from oils and liquids to solids, metals, polymers, powders, pastes, coatings, and thin films. Available models are NEX CG II, which offers excellent spectral resolution for trace peaks, and NEX CG II+, designed for more demanding applications requiring a higher-powered system.
Cartesian Geometry and Polarization for Trace Level Sensitivity
Unlike conventional energy dispersive X-ray fluorescence (EDXRF) spectrometers, NEX CG II Series are indirect excitation systems using secondary targets rather than tube filters. Monochromatic and polarized excitation from secondary targets vastly improves detection limits for elements in highly scattering matrices like water, hydrocarbons, and biological materials. Secondary target excitation in full 90° Cartesian Geometry eliminates background noise. As a result, NEX CG II Series brings a new level of analytical sensitivity to XRF technology. Users can measure ultra-low and trace element concentrations, even in challenging sample types.
Key advantages and features:
- Non-destructive elemental analysis for sodium (Na) to uranium (U)
- Rapid elemental analyses of solids, liquids, powders, coatings, and thin films
- Indirect excitation for exceptionally low detection limits
- High-power X-ray tubes (50 kV 50 W or 65 kV 100 W)
- Large-area high-throughput silicon drift detector (SDD)
- Analysis in air, helium, or vacuum
- Powerful and easy-to-use QuantEZ software with multilingual user interface
- Advanced RPF-SQX Fundamental Parameters software featuring Scattering FP
- Rigaku Profile Fitting (RPF) advanced algorithm for peak deconvolution
- Various automatic sample changers accommodating up to 52 mm samples
- Low cost of ownership backed by a 2-year warranty
... Read More | Inquire | Key Features
- High-end WDXRF – Ideal for industrial applications
- High throughput – Obtain accurate results in minutes
- Tube-above optics – Eliminates particulate contamination ensuring consistent, reliable results
- Extended detection rage – Be to Cm
- ZSX Guidance software – Increases usability
Key Features
- High-end WDXRF – Ideal for industrial applications
- High throughput – Obtain accurate results in minutes
- Tube-above optics – Eliminates particulate contamination ensuring consistent, reliable results
- Extended detection rage – Be to Cm
- ZSX Guidance software – Increases usability and assists with calibrations
- Attractive pricing - WDXRF performance at an affordable price
The ZSX Primus III NEXT provides rapid elemental analysis with the ability to rapidly quantify major and trace elements (Be to Cm). Its’ high-throughput, excellent sensitivity and affordable price point make it an ideal solution for industrial applications.
Tube-Above Optics
The system features Rigaku’s unique tube-above optical configuration which prevents dust and particles from contaminating optical components and distorting readings as well as minimizing maintenance and maximizing uptime. This makes it ideal for the analysis of pressed powder samples. Furthermore, using wavelength dispersive X-ray fluorescence (WDXRF) provides superior spectral resolution to energy dispersive X-ray fluorescence (EDXRF).
Improved Quality of Analytical results
The ZSX Primus III NEXT features a number of key upgrades from its predecessor resulting in improved results and high throughput levels. These include: - The incorporation of a digital multi-channel analyzer (D-MCA) and the efficient control of each driving unit to improve the quantitative analysis throughput by 21%.
- A S-PC LE, an environmentally friendly gas-shielded proportional detector for light elements. The S-PC LE negates the need to install a detector gas cylinder
- Powerful ZSX Guidance software, common to Rigaku’s flagship WDXRF spectrometers enabling data sharing and including scheduler function to automate and streamline operations
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