SPECTRO XEPOS Polarized Energy Dispersive X-Ray Fluorescence Spectrometer

Overview

The SPECTRO XEPOS Polarized Energy Dispersive X-Ray Fluorescence Spectrometer is an advanced benchtop or floor-standing analytical instrument engineered for high-precision, non-destructive elemental analysis of solids, powders, and homogeneous liquids. It operates on the fundamental principle of energy-dispersive X-ray fluorescence (ED-XRF): a polarized Rh-target microfocus X-ray tube excites sample atoms, inducing characteristic secondary X-ray emission; emitted photons are resolved by a high-resolution Peltier-cooled silicon drift detector (SDD), enabling simultaneous multi-element quantification across the Na–U range. The patented polarization optics significantly suppress background scatter—particularly from light matrix elements—thereby enhancing peak-to-background ratios and lowering detection limits. This architecture delivers performance traditionally associated with wavelength-dispersive (WD-XRF) systems while maintaining the operational simplicity, speed, and cost-efficiency inherent to ED-XRF platforms.

Key Features

• Polarized primary beam excitation using a high-stability Rh anode microfocus X-ray tube, minimizing Compton and Rayleigh scattering to improve signal-to-noise ratio
• High-throughput silicon drift detector (SDD) with <130 eV energy resolution at Mn Kα (5.9 keV), enabling clear separation of adjacent peaks (e.g., S Kα/Pb Mα, Cr Kβ/Mn Kα)
• Automated dual-collimator system (0.3 mm and 1.0 mm) for flexible spatial resolution and intensity optimization per sample type
• Integrated vacuum and helium purge pathways for enhanced sensitivity to light elements (Na–F), supporting quantitative analysis down to sub-ppm levels in optimized matrices
• Robust mechanical design compliant with ISO 17025 environmental stability requirements (temperature-controlled chamber, vibration-damped base)
• Pre-aligned optical path with factory-calibrated geometry—no user realignment required during routine operation or maintenance

Sample Compatibility & Compliance

The SPECTRO XEPOS accommodates a broad spectrum of sample forms: pressed pellets, fused beads, loose powders, thin films, alloys, polymers, geological specimens, and homogenized liquids in sealed cells. Its sample chamber supports up to 100 mm diameter × 40 mm height samples, with optional motorized XYZ stage for mapping applications. All measurement protocols adhere to internationally recognized standards including ASTM E1621 (ED-XRF for metals), ISO 21043 (XRF for cement and clinker), and IEC 62321-5 (RoHS screening). Instrument firmware and data handling workflows support audit-ready documentation aligned with GLP and GMP environments, including full electronic signatures and 21 CFR Part 11–compliant audit trails when integrated with validated LIMS interfaces.

Software & Data Management

Controlled by TurboQuant II software—a fully modular, Windows-based platform—the SPECTRO XEPOS enables method development, calibration, and reporting without requiring expert spectroscopic knowledge. The software includes automated spectral deconvolution using fundamental parameters (FP) algorithms, matrix correction via empirical coefficients or theoretical alpha coefficients, and built-in uncertainty estimation per element. All raw spectra, processing logs, calibration history, and QA/QC reports are stored in encrypted SQLite databases with timestamped metadata. Export formats include CSV, PDF analytical reports, and XML-compatible results for seamless integration into enterprise quality management systems (QMS) or laboratory information management systems (LIMS). Remote diagnostics and firmware updates are supported via secure HTTPS channels.

Applications

This spectrometer serves diverse sectors requiring trace-to-major elemental quantification: incoming raw material verification in metallurgy and electronics manufacturing; regulatory compliance testing for restricted substances (Pb, Cd, Hg, Cr⁶⁺, Br) per RoHS, WEEE, and CPSIA directives; geochemical exploration and mining grade control; catalyst composition monitoring in petrochemical R&D; and quality assurance of pharmaceutical excipients and packaging materials. Its sub-ppm sensitivity for transition metals and halogens—combined with robust repeatability (<0.1% RSD for Fe in steel standards)—makes it suitable for both routine QC labs and accredited reference laboratories performing ISO/IEC 17025–accredited analyses.

FAQ

Does the SPECTRO XEPOS require liquid nitrogen cooling?
No—it uses a thermoelectrically cooled silicon drift detector, eliminating cryogenic consumables and enabling continuous 24/7 operation.
Can it analyze light elements such as sodium or magnesium in air?
Yes, with optional helium purge or vacuum mode, detection of Na, Mg, Al, Si, and P is fully supported and routinely validated per ISO 21043 Annex B.
Is method transfer possible between different SPECTRO XEPOS units?
Yes—TurboQuant II supports standardized method export/import with embedded instrument-specific calibration constants, ensuring cross-platform reproducibility within ±2% relative for certified reference materials.
What safety certifications does the instrument hold?
It complies with EU Directive 2014/30/EU (EMC), 2014/35/EU (LVD), and IEC 61010-1 for laboratory equipment safety; radiation shielding meets DIN 54113 Class I requirements.
How frequently must the instrument be recalibrated?
Factory calibration remains stable for ≥12 months under normal use; annual verification using CRMs (e.g., NIST SRM 2711a, BAM BCR-414) is recommended for ISO/IEC 17025 compliance.