SelectScience
Join Free
Accelerating Science
NewsSpectroscopy

Rigaku Publishes New Application Report for U.S. EPA Tier 3 Gasoline Testing Protocols

Rigaku Corporation

A new application report from Rigaku demonstrates an EDXRF analysis method for compliance with U.S. EPA Tier 3 Gasoline performance-based testing protocols

27 Jun 2017
Abigail Berry
Administrator / Office Personnel

Product news

Applied Rigaku Technologies, Inc. has announced a new empirical method for measurement of sulfur in gasoline, in compliance with the U.S. EPA Tier 3 Gasoline PBMS testing protocol and performance. Rigaku Application Note #1707 describes an analysis method employing energy dispersive X-ray fluorescence (EDXRF) in accordance with the U.S. Environmental Protection Agency (EPA) Tier 3 Gasoline Performance Based Measurement System (PBMS). The report includes complete information about sample preparation, testing requirements, calibration and measurement results.

In 2016, the U.S. EPA began phasing in Tier 3 Gasoline, mandating the maximum allowable sulfur in gasoline to be 10 ppm (10 mg/kg). PBMS testing requirements similar to those for Ultra-Low Sulfur Diesel (ULSD) were established. The EPA allows any testing method that can comply with the performance guidelines for accuracy and precision.

For the analysis described in the report, empirical calibrations were built using a suite of six commercially available certified gasoline calibration standards. The detection limits were determined by the empirical method, whereby ten repeat analyses of a blank gasoline sample containing 0.0 ppm S were taken with the sample in static position and the standard deviation determined. The Lower Limits of Detection (LLD), defined as three times the standard deviation, were reported as 0.24 ppm for Tier 3 gasoline using a measurement time of 300 sec per analysis.

The analysis was performed using the Rigaku NEX CG monochromatic EDXRF spectrometer, using Cartesian Geometry polarization. Ideally suited for ultra-low sulfur measurements, such as those for Tier 3 Gasoline and ULSD, the NEX CG spectrometer is a multi-element analyzer capable of performing a variety of applications throughout the petroleum industry, including down-stream analyses as well as mid-stream and upstream measurements.

The results detailed in the report demonstrate that the NEX CG analyzer complies with U.S. EPA Tier 3 Gasoline performance-based testing protocols and achieves this excellent performance using monochromatic EDXRF with Cartesian Geometry polarization.

A copy of this report may be requested here.

Related products

Request Quote for All Products

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

(0)

NEX QC+ EDXRF Analyzer

Rigaku Corporation

For more demanding applications, or for situations where analysis time or sample throughput is critical, Rigaku offers the new NEX QC+ spectro­meter. Employing the next generation silicon detector technology, the enhanced NEX QC+ affords significant improvement in elemental peak resolution and counting statistics, resulting in superior calibrations and measurement precision for the most challenging measurements.Specifically designed for routine quality control 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 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 SDD detector for superior resolution and sensitivity 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

(2)

Links

Rigaku CorporationCompany website

Tags

Fluorescence SpectroscopyFluorometers and spectrofluorometers (also called fluorescence spectrometers) are used to measure the intensity and wavelength of fluorescent light emitted from a sample after excitation by illumination. Spectrofluorometers utilize monochromators to select the desired wavelengths, whereas filter fluorometers employ a set of filters. Spectrofluorometers for measuring steady-state fluorescence and lifetime fluorescence (or time-resolved fluorescence) are available, as well as fluorescence microscopes and microplate readers. Find the best fluorescence spectroscopy products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.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.Environmental Monitoring and TestingEnvironmental monitoring and testing uses handheld portable analyzers, kits, spectrometers or chromatography systems for air, water, soil, food and other sample testing. Useful features of analyzers such as BOD and COD include portability, easy calibration, automation and sensitivity.  Environmental test kits for pH, water, moisture, etc, should be accurate, sensitive, reliable, fast and easy to use.Gasoline AdditivesEPA MethodsEPA methods are procedures approved by the U.S. Environmental Protection Agency for monitoring and analyzing environmental pollutants, including air, water, and soil samples. These methods are critical in ensuring public health and environmental safety. Explore EPA methods and tools in our peer-reviewed product directory; compare products, check reviews, and get pricing directly from manufacturers.PetrochemicalsPetrochemicals are chemical products derived from petroleum or natural gas, essential in creating plastics, fuels, and synthetic materials. Analytical techniques help ensure product quality and environmental compliance. Browse equipment for petrochemical analysis in our product directory.

Related articles