Rigaku's ART division specializes in X-ray fluorescence (XRF) spectrometers employing energy dispersive detectors (EDXRF). XRF is an X-ray spectrometric technique for elemental analysis of a wide variety of materials. Other phrases for XRF instruments include: XRF analyzer, XRF spectrometer, XRF analysis, X-ray fluorescence analyzer, x-ray fluorescence spectrometry, fluorescence x, spectromètre de fluorescence X, Röntgenfluoreszenzanalyse, fluorescencia de rayos X, Röntgenfluoreszenz, Röntgenfluorescentie, Röntgenfluorescens, Röntgenfluoresenssi, Røntgenfluorescens and Promieniowanie rentgenowskie.
Typical uses of EDXRF include the analysis of petroleum oils and fuel, plastic, rubber and textiles, pharmaceutical products, foodstuffs, cosmetics and body care products, fertilizers, geological materials, mining feeds, slags and tails, cement, heat-resistant materials, glass, ceramics, catalysts, wafers; the determination of coatings on paper, film, polyester; metals and alloys, glass and plastic; forensics; multi-layer thin films on silicon wafers, photovoltaics and rotating storage media as well as pollution monitoring of solid waste, effluent, cleaning fluids, pools and filters. In addition, X-ray Transmission (XRT) process gauges are employed to measure sulfur (S) in crude oil and marine bunker fuel.
XRF and EDXRF spectrometers are the elemental analysis tool of choice, for many applications, in that they are smaller, simpler in design and cost less to operate than other technologies like inductively coupled plasma optical emission spectroscopy (ICP-OES) and atomic absorption (AA) or atomic fluorescence (AF) spectroscopy. Examples of some common EDXRF applications are: Cement and raw meal: sulfur, iron, calcium, silicon, aluminum, magnesium, etc; Kaolin clay: titanium, iron, aluminum, silicon, etc; Granular catalysts: palladium, platinum, rhodium, ruthenium, etc; Ores: copper, tin, gold, silver, etc; Cement and mortar fillers: sulfur in ash.
Other examples of common EDXRF applications include: Gasoline, diesel and RFG: sulfur, manganese, lead, etc; Residual gas oils: sulfur, chlorine, vanadium, nickel, etc; Secondary oil: chlorine, etc; Kerosine, naphtha: sulfur, etc; Crude oil and bunker fuels: sulfur, vanadium, nickel, etc; Plating, pickling & pre-treatment baths: gold, copper, rhodium, platinum, nickel, sulfates, phosphates, chlorides, etc; Acetic acid: magnesium, cobalt and bromine; Terephthalic acid (TPA): cobalt, manganese, iron, etc; Dimethyl terephthalate (DMT): heavy metals; PVC copolymer solutions: chlorine; Photographic emulsion: silver; Clay: metals and non-metals; Waste and effluent streams: RCRA metals, chlorides, phosphates, etc. Additionally, EDXRF and XRF are employed to quantify atomic elements in: Food, pet food and other animal feed: potassium, phosphorus and chlorine; Cosmetics: zinc, titanium, calcium, manganese, iron, silicon, phosphorus, sulfur, aluminum, and sodium; Wood treatment: CCA, Penta, ACQ, ACZA, phosphorus-based fire retardants, copper naphthanate, zinc napthanate, TBTO, IPBC and combinations of these; Antacids: calcium; and Toothpaste: phosphorus and tin.
New low cost benchtop EDXRF for rapid qualitative and quantitative elemental analysis
Rigaku NEX QC energy dispersive X-ray fluorescence (EDXRF) analyzer delivers rapid qualitative and quantitative determination of major and minor atomic elements in a wide variety of sample types:
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 50 kV 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). Options include fundamental parameters, automatic sample changer, sample spinner and helium purge for enhanced light element sensitivity.
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