Rigaku Nex DE

As a premium high performance benchtop Energy Dispersive X-ray Fluorescence (EDXRF) elemental analyzer, the new Rigaku NEX DE delivers wide elemental coverage with a easy-to-learn Windows®-based QuantEZ software. Non-destructively analyze from sodium (Na) through uranium (U) in almost any matrix, from solids and alloys to powders, liquids and slurries.

XRF elemental analysis in the field, plant or lab
Especially designed and engineered for heavy industrial use, whether on the plant floor or in remote field environments, the superior analytical power, flexibility and ease-of-use of the NEX DE adds to its broad appeal for an ever expanding range of applications, including exploration, research, bulk RoHS inspection, and education, as well as industrial and production monitoring applications. Whether the need is basic quality control (QC) or its more sophisticated variants — such as analytical quality control (AQC), quality assurance (QA) or statistical process control like Six Sigma — the NEX DE is the reliable high performance choice for routine elemental analysis by XRF.

XRF with 60kV X-ray tube and SDD detector
The 60kV X-ray tube and Peltier cooled FAST SDD® Silicon Drift Detector deliver exceptional short-term repeatability and long-term reproducibility with excellent element peak resolution. This high voltage capability (60 kV), along with high emission current and multiple automated X-ray tube filters, provides a wide range of XRF applications versatility and low limits-of-detection (LOD).

XRF options: autosampler, vacuum, helium and standardless FP
Options include fundamental parameters, a variety of automatic sample changers, sample spinner and helium purge or vacuum atmosphere for enhanced light element sensitivity.

*FAST SDD® is a registered trademark of Amptek, Inc.

• Analyze ₁₁Na to ₉₂U non-destructively
• Powerful QuantEZ Windows®-based software
• Solids, liquids, alloys, powders and thin films
• 60kV X-ray tube for wide elemental coverage
• FAST SDD® detector for superior counting statistics
• Multiple automated tube filters for enhanced sensitivity
• Unmatched performance-to-price ratio
• Optional RPF-SQX fundamental parameters software
• Optional standardless fundamental parameters software


FAST SDD® EDXRF spectrometer with QuantEZ software

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NEX DE Applications

Analysis of ULSD

The analysis of sulfur in ULSD (ultra-low sulfur diesel) is demonstrated.

Regulations around the world have limited the amount of sulfur in various fuels oils with particular attention to diesel fuel. For many years road diesel has been limited to a maximum sulfur concentration between 10-15 ppm, depending on the global region. Now these limits are expanded to all diesel fuel, including use in large engines and off-road diesel engines.

Electroless Nickel plating

The measurement of nickel, phosphorus and lead electrolessnickel plating on various metal substrates is demonstrated.

Electroless Nickel plating (EN) deposits a nickel-phosphorus or nickel-boron coating, providing an even, protective coating on metal or plastic materials for wear and corrosion resistance or cosmetic enhancement. In the case of phosphorus-nickel plating on a metal (PEN), the phosphorus content of typically 2-14% determines the metallurgical properties of the nickel alloy coating. A stabilizer such as lead is co-deposited with the nickel to slow down the reduction speed. Measurement and control of these elements in the plating bath and deposited coating is important for optimum product quality. To meet this industry need, Applied Rigaku Technologies offers the NEX DE VS benchtop EDXRF system. East to operate at-line or in the lab, the NEX DE VS uses a special fundamental parameters application method that automatically calculates the plated coating thickness and composition and measures liquids using simple empirical calibration. NEX DE VS automatic switching collimators also offer small spot measurement down to 1mm spot size for measuring plating on smaller pieces.

Gold in used ore material such as from ore dumps and tailing piles

Measurement of gold is demonstrated in used ore material such as from ore dumps and tailing piles. This App Note also shows the recovery of uranium from the used ore material.

Recovering gold and other valuable metals from used ore materials can be a profitable recovery venture. In the processing of ores the desired metals and other base metals are extracted leaving mostly silicates, minerals and the other base ore materials. Gold and other precious metals can be recovered by further processing and extraction of the ore material from used ore dumps or old tailing piles. To screen and measuring the gold content Applied Rigaku offers the NEX DE EDXRF system with high throughput SDD detector to give superior measurement of trace valuable metals in various used ore materials.

Gold Processing

he at-line analysis of gold in impregnated stripping solutions during the electrowinning process is demonstrated.

Gold ore processors commonly utilize the cyanide leaching technique to recover trace gold content. After the gold is leached out of the ore, it is typically absorbed onto activated carbon in processes such as Carbon-in-Pulp (CIP), Carbon-in-Leach (CIL), or Carbon Column (CC). Once absorbed, the gold is stripped from the Carbon and the impregnated stripping solution fed into the electrowinning process where the gold is recovered by electrolysis. By measuring the gold in the stripping solution at-line, operators can quickly and easily determine when the solution will be barren of gold, significantly improving the plant’s efficiency. The Rigaku NEX DE offers a simple and low cost at-line analytical technique for measuring such solutions. Non-technical operators obtain results in as little as 100-300 seconds without the need for special sample preparation, sample conditioning or technical knowledge.

Heavy Metal Aerosols on Air Filters

Measurement of metals, especially toxic heavy metals, in aerosols on air filters is demonstrated. Simple linear empirical calibration is discussed, and performance is shown for measurement precision and typical detection limits.

Element analysis of aerosols and particulate matter released in smokestacks and other industrial gas discharge is vital to ensure that environmentally acceptable levels of toxic and hazardous elements are released properly into the air. Monitoring smoke or other gaseous waste is important in many areas, such as industrial manufacturing, coal-fired power plants, chemical and plastics production, etc., in order to minimize air pollution and the release of toxic metals in compliance with US EPA and other world and regional or local governing regulations. As a tool to help ensure compliance and proper release, Rigaku offers the NEX DE EDXRF analyzer with 60 kV excitation source and high resolution and throughput Si Drift Detector, giving the analysts and technician alike a fast, simple, yet powerful means for monitoring elemental analysis of air filters.

Pb-free Solder

The measurement of lead in lead-free solder is demonstrated by rapid XRF screening for RoHS, WEEE and ELV directives.

Lead content (Pb) is limited in most solder applications according to regulations RoHS, WEEE and ELV initiatives.These regulations limit the maximum allowable Pb in solder to no greater than 0.1000% Pb (1000 ppm). Energy Dispersive X-ray Fluorescence (EDXRF) is an accepted analysis technique for the rapid screening to determine whether Pb is below allowable limits. Fast and simple to operate, the NEX DE VS system offers screening for Pb content and use of camera view and automatic small spot collimators down to 1 mm spot size, making it an ideal tool for rapid screening to ensure regulation compliance.

RoHS: Cr, Hg, Pb, Br and Cd in polyethylene

Measurement of Cr, Hg, Pb, Br and Cd in polyethylene (PE) is demonstrated for RoHS rapid screening by XRF.

The Restriction on Hazardous Substances initiative (RoHS) limits the allowable amounts of the toxic elements chromium, mercury, lead, bromine and cadmium in plastics and consumer goods. Energy Dispersive X-ray Fluorescence (EDXRF) is an accepted analysis technique for the rapid screening by XRF and quantification of the hazardous element according to RoHS norms. To meet the industry needs, Rigaku offers the NEX DE VS analyzer with automatic collimators and camera for sample positioning and sample image, giving QA/QC technicians the means for fast and simple screening and analysis of materials that must conform to RoHS and similar directives.

S, Ca, V, Fe, Ni in CRUDE

The analysis of sulfur, calcium, vanadium, iron and nickel in crude is demonstrated. The measurement is also applicable to residual oil, bunker fuels and other heavy hydrocarbon oils.

Sulfur, vanadium and nickel occur naturally in crude oil, and their concentrations vary depending on the geographical region of the oil deposits. Depending on the region some crude may also contain measurable levels of calcium and iron. High metal content can foul the refining process during cracking, and so low metal crude is desirable. At the refinery as well as midstream at pipelines, transportation, gathering points and during blending a quick and easy means of screening and monitoring the metal content is a valuable tool in characterizing the quality of the crude before refining. Applied Rigaku Technologies meets the industry need with the NEX DE EDXRF analyzer. New excitation and detection technology achieves up to 500,000 cps throughput and very low background and exceptional detection limits. This makes NEX DE an ideal multi-element tool for monitoring the concentrations of not only sulfur but also metals in crude, resid and other heavy hydrocarbons.

More application notes are available by submitting the application request form