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ROHS Rapid Screening by Benchtop XRF

Rigaku Corporation
24 Oct 2012

This application note describes the measurement of Cr, Hg, Pb, Br and Cd in polyethylene (PE) by XRF rapid screening using the empirical method. The Rigaku NEX QC gives the user a reliable and low-cost tool for measuring the toxic metals in PE and similar polymers for screening incoming raw materials and during the production process.

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Rigaku NEX QC: Low Cost Elemental Analyzer

Rigaku Corporation

As a premium low cost benchtop Energy Dispersive X-ray Fluorescence (EDXRF) elemental analyzer, the Rigaku NEX QC delivers wide elemental coverage with an easy-to-learn software interface in a robust package designed for industrial at-line quality control applications. Specifically designed for routine quality control elemental analysis applications, the new Rigaku NEX QC features an intuitive "icon-driven" touch screen interface for easy operation and a built-in printer for convenience.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 XRF applications versatility and low limits-of-detection (LOD).NEX QC Features: Analyze 11Na to 92U non-destructively Solids, liquids, alloys, powders and thin films 50kV X-ray tube for wide elemental coverage Semiconductor detector for superior data quality Modern smartphone style "icon driven" user interface Multiple automated tube filters for enhanced sensitivity Convenient built in thermal printer Low cost with unmatched performance-to-price ratio Optional fundamental parameters

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X-Ray Diffraction and SpectroscopyX-Ray diffraction & spectroscopy are used in material characterization to discern the structure and elemental composition of a sample. X-Ray diffractometers (XRD) are superior instruments in elucidating the dimensional atomic structure of crystalline materials, including powders, thin films and single crystals. For large unit cells or ordered macromolecules, consider small-angle X-ray scattering (SAXS). X-ray spectroscopic techniques include X-ray fluorescence (XRF) and X-ray photoelectron spectroscopy (XPS), both providing simple and accurate methods for determining the elemental composition of a material. Energy dispersive (EDXRF) and wavelength dispersive (WDXRF) XRF spectrometers are available, as well as handheld/portable devices. High-resolution, 3D microstructure characterization of materials can be achieved with X-ray microscopes combining sub-micron resolution imaging with 3D computed tomography. Find the best XRD and XRF spectrometers in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.PolyethyleneToxic MetalsPolymersPolymers are large molecules made up of many repeat units. Natural polymers such as DNA and proteins are essential to life, whereas synthetic polymers such as polystyrene and polyethylene are used widely due to their functionality. Typical techniques for analysis include GPC, SEC, DSC, FT-IR and NMR.

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ROHS Rapid Screening by Benchtop XRF