NEX CG II

The Rigaku NEX CG II is a multi-element, multi-purpose benchtop energy dispersive X-ray fluorescence (EDXRF) spectrometer that performs rapid qualitative and quantitative trace elemental analyses. It offers fast, reliable measuring and monitoring for ultra-low and trace element concentrations up to high weight percent levels. NEX CG II is especially well-suited for trace element analysis for environmental monitoring, industrial waste applications, recycled materials, electronic components, and cosmetics, and addresses the needs of many other applications. It serves many industries, from research and development to industrial and in-plant quality assurance.

NEX CG II provides non-destructive analysis of sodium (Na) through uranium (U) in almost any matrix — and pushes the boundaries of EDXRF with its unique close-coupled 3D Cartesian Geometry (CG) optical kernel. Unlike conventional EDXRF systems, NEX CG II is an indirect excitation system using secondary targets rather than tube filters. Monochromatic and polarized excitation from secondary targets in full 90° Cartesian Geometry eliminates background noise and delivers exceptionally low detection limits.

This superior analytical power is achieved with a high-power 50 kV, 50 W X-ray tube, five secondary targets covering the complete elemental range sodium through uranium, and a large-area, high-throughput silicon drift detector (SDD). The 3D configuration reduces and virtually eliminates the background that could interfere with analysis, allowing more elemental signal in the detector for excellent detection of trace peaks in many matrices. Combined with Rigaku’s advanced RPF-SQX Fundamental Parameters software, this enables users to measure ultra-low and trace element concentrations — even in challenging sample types.

NEX CG II excels in complex applications with trace elements and variable-base matrices, such as testing agricultural soils and plant materials, analyzing finished animal feeds, and measuring waste oils. Users can obtain high-throughput measurements with various autosampler options, accommodating 32-, 40-, and 52-mm samples. And with Ultra Carry^® sample carrier, users can quantify trace elements in aqueous samples down to parts-per-billion (ppb) concentration levels. With these capabilities, NEX CG II rivals large, more expensive systems and replaces the need for multiple single-element benchtops. This unmatched performance and smaller footprint make it an attractive instrument for any commercial lab or R&D facility. It is powerful enough for experts and easy to use for those running routine quality control.