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Sulfur Analysis of Petroleum Products by Benchtop WDXRF According to ASTM D2622-10

Rigaku Corporation
31 Oct 2012

Sulfur is a critical element in the petroleum refinery process and in its final products. Since sulfur in petroleum-based fuels contributes to atmospheric pollution, its concentration, especially in automobile fuels, must be strictly controlled. This application note demonstrates that sulfur in petroleum products can be routinely analyzed in both low and high sulfur concentration ranges with excellent accuracy, sensitivity and repeatability using a Benchtop WDXRF spectrometer with minimal site requirements. In particular, the Rigaku Supermini200 benchtop WDXRF system, which does not require external water for cooling an X-ray tube or special power supply, meets the specifications of ASTM D2622-10, which has become more stringent in the recent versions of ASTM D2622, which has become more stringent in the recent versions of ASTM D2622.

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Supermini 200 Benchtop WDXRF Spectrometer

Rigaku Corporation

The new Supermini200 has improved software capabilities as well as a better footprint. As the world's only high-power benchtop sequential wavelength dispersive X-ray fluorescence (WDXRF) spectrometer for elemental analysis of oxygen (O) through uranium (U) of almost any material, the Rigaku Supermini200 uniquely delivers low cost-of-ownership (COA) with high resolution and lower limits-of-detection (LLD). Not only is the Rigaku Supermini200 an affordable choice for your XRF elemental analysis needs, the running costs are also low. P10 gas for the flow proportional detector is the only consumable. The Supermini200 does not require a source of cooling water, plumbing, or an external chiller, thereby decreasing system maintenance and lowering the overall lifetime cost of ownership of the system and yearly budgets for consumables and maintenance.Supermini is the only high powered (200 W) X-ray tube benchtop WDXRF system, providing excellent excitation resulting in lower detection limits and shorter measurement times. A unique and proprietary optical system is also employed to enhance sensitivity beyond the gains of the tube power.Supermini 200 Benchtop WDXRF Spectrometer Features: Analyze oxygen through uranium (O → U) Analyze: solids, liquids, powders, alloys and thin films Atmosphere: air, helium or vacuum X-ray tube: 50 kV, 200 W Pd-anode Primary beam filter: Zr is standard; Al optional Detectors: F-PC and scintillation Crystals: 3-position changer Autosampler: 12-position standard Vacuum: rotary pump standard Power: 100 – 120V (50/60 Hz) 15A or 200 – 240V (50/60 Hz) 10A

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Sulfur Analysis of Petroleum Products by Benchtop WDXRF According to ASTM D2622-10