Rigaku Supermini200 Benchtop Wavelength Dispersive X-Ray Fluorescence Spectrometer

Overview

The Rigaku Supermini200 is a compact, benchtop wavelength dispersive X-ray fluorescence (WDXRF) spectrometer engineered for high-resolution elemental analysis across a broad range—from oxygen (Z = 8) to uranium (Z = 92). Unlike energy dispersive XRF (EDXRF), which relies on semiconductor detectors and suffers from peak overlap in the low-energy region, the Supermini200 employs Bragg diffraction from analyzing crystals to physically separate characteristic X-ray lines by wavelength. This fundamental WDXRF principle delivers superior spectral resolution—enabling baseline separation of critical adjacent peaks such as Al Kα (1.487 keV) and Si Kα (1.740 keV)—and significantly improved detection limits for light elements including fluorine (F), sodium (Na), magnesium (Mg), aluminum (Al), and silicon (Si). Its 200 W sealed-tube X-ray source provides stable excitation without requiring high-power infrastructure, while the fully air-cooled design eliminates dependency on liquid nitrogen cryocooling or recirculating water chillers—reducing operational overhead and expanding deployment flexibility in QC labs, R&D centers, and regulatory environments.

Key Features

• Benchtop footprint (≈ 600 × 650 × 450 mm) with full WDXRF performance—no compromise on resolution or light-element sensitivity
• High-angular-precision goniometer with automatic crystal changer supporting multiple analyzing crystals (e.g., LiF, PET, TAP) for optimal coverage across soft and hard X-ray ranges
• 200 W high-stability end-window X-ray tube with dual anode options (Rh or Cr) to optimize excitation efficiency for specific element groups
• Integrated vacuum and helium purge pathways enabling quantitative analysis of elements down to oxygen (O Kα, 0.525 keV) under controlled atmosphere
• Rugged mechanical design compliant with IEC 61000-6-2 (EMC immunity) and IEC 61010-1 (safety for laboratory equipment)
• Pre-aligned optical path and factory-calibrated spectrometer geometry—minimizing user intervention during routine operation and method transfer

Sample Compatibility & Compliance

The Supermini200 accepts solid blocks, pressed pellets, fused beads, and thin films up to 50 mm in diameter and 30 mm in height. Its sample chamber accommodates standard 32-mm or 40-mm sample cups and integrates motorized XYZ stage positioning for repeatable beam alignment. All analytical methods adhere to internationally recognized standards—including ASTM E1621 (standard test method for elemental analysis by WDXRF), ISO 21043 (XRF general principles), and JIS Z 3212 (Japanese industrial standard for metal analysis)—ensuring traceability and inter-laboratory comparability. The system supports GLP/GMP workflows via configurable user access levels, electronic signature capability, and audit-trail-enabled method storage—all aligned with FDA 21 CFR Part 11 requirements when deployed with Rigaku’s certified software suite.

Software & Data Management

Operation is managed through Rigaku’s proprietary Quant’X software, a Windows-based platform featuring intuitive workflow-driven interface, automated calibration curve generation, and matrix correction algorithms (e.g., Lucas-Tooth, Fundamental Parameters). Data files are stored in vendor-neutral formats (CSV, XML, .rxf) and support direct export to LIMS via ODBC or secure FTP. Software modules include optional QA/QC dashboards with real-time SPC charting (X-bar/R charts), drift monitoring against reference standards, and automated report generation compliant with ISO/IEC 17025 documentation requirements. All method parameters—including voltage/current settings, crystal selection, collimator size, detector gas pressure, and counting time—are version-controlled and timestamped for full analytical traceability.

Applications

The Supermini200 serves mission-critical roles across industries where precise quantification of light-to-heavy elements is essential: geological core scanning and ore grade verification; catalyst composition profiling in petrochemical R&D; halogen screening (Cl, F, Br) in RoHS-compliant electronics manufacturing; oxide stoichiometry validation in advanced ceramics and battery cathode materials; and alloy certification in aerospace-grade aluminum and titanium components. Its ability to resolve overlapping peaks—such as Mg Kα/Si Kβ or P Kα/Si Kα—makes it especially valuable for quality control of glass compositions, refractory linings, and high-purity metallurgical additives where conventional EDXRF yields ambiguous results.

FAQ

Does the Supermini200 require liquid nitrogen or external chiller systems?

No. It uses air-cooled proportional counters and a thermally stabilized X-ray tube—eliminating cryogenic or hydraulic infrastructure.
Can it quantify oxygen in metal oxides or silicates?

Yes. With helium purge mode enabled and optimized crystal/detector configuration, detection and quantification of O Kα (0.525 keV) is routinely achieved at sub-0.1 wt% levels.
Is method transfer possible between different Supermini200 units?

Yes. Factory-installed spectral response functions and standardized geometry allow direct import/export of calibration models across instruments without revalidation.
What safety certifications does the instrument carry?

It complies with IEC 61010-1 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use) and IEC 62471 (Photobiological Safety of Lamps and Lamp Systems) for X-ray emission containment.
How is data integrity ensured during regulated testing?

Quant’X software includes ALCOA+ compliant features: role-based authentication, immutable audit trails, electronic signatures, and 21 CFR Part 11–ready configuration packages validated per customer SOPs.