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Spectroscopy Polymer Analysis | Thermo Fisher Scientific - CN

Spectroscopy Polymer Analysis. Formulate, characterize, and measure your materials using Thermo Scientific rheology, compounder, torque rheometer and mixer, extrusion and spectroscopy technologies. Whether you support research, QA/QC, product development or production, our products are designed to solve everyday challenges.

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12 LABORATORY SAMPLE PREPARATION

drying, obtaining a constant weight, grinding, sieving, mixing, and subsampling) are discussed. Some sample preparation procedures then are presented for typical types of solid samples (e.g., soil and sediment, biota, food, etc.). This chapter concludes with specific guidance for preparing

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ISTerre 2011 & ISTerre

Our inversion scheme allows us to analyse the spatial variability of the rise time, rupture velocity and slip function. We obtain a continuous image of the spatial and temporal variations of slip on the fault plane. The rupture initiated at a depth of 40 km (transition zone), in the western part of the Guerrero gap.

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(PDF) fuse bead xrf | Alfi Musthofani - Academia.edu

Descriptions of complexities in interpreting fluorescence radiation these standards, including the best values to date, that is detected in the XRF spectrometer. The com- addresses from which the standards may be obtained, plexities are collectively known as spectral overlap etc. are published [5]. Standards, membership in the effects and ...

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fire assay process

Gold & Silver Assay, XRF or Fire Assay : Gold Buyers of Alaska. Gold Buyers of Alaska assay gold, silver & precious metals using either x-ray fluorescence or fire assay techniques. ... The amount of precious metal is then calculated based on the after-melt weight and the results of the fire assay. This process is the standard for valuing gold ...

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Introduction to X-Ray Fluorescence (XRF) Spectrometry

X-Ray Fluorescence Spectrometry. For X-ray fluorescence spectrometry (XRF) technique an X-ray excitation source is used and, compared to SEM/EDS, it is more sensitive to higher atomic weight elements and less sensitive to the lower atomic weight elements commonly found in extenders.

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XRF SAMPLE PREPARATION - Malvern Panalytical

XRF SAMPLES • Solids Rod, Sheet, Foil, Glass, Ingots, Bar • Small fabricated parts Rod, Wire, Screws, Pieces • Powders Different grain sizes / Hardness • Briquettes Pressed with Elvacite / Wax etc. • Fusion products Glazes, Ceramics, Fused beads • Liquids and solutions Oils, Aqueous solutions • Supported specimens Thin films, Coatings, Plantings, Filter paper,

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Ash analyses of bio-coal briquettes produced using blended ...

The compositional (oxides) analysis of the bio-coal briquette ashes was done with the aid of an X-ray fluorescence ( XRF) spectrometer (Bruker S8 TIGER model). Briquette ash of …

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THEORY OF XRF - Purdue University

This booklet gives a general introduction to X-Ray fluorescence (XRF) spectrometry and XRF analysis. It explains simply how a spectrometer works and how XRF analysis is done. It is intended for people new to the field of XRF analysis. Difficult mathematical equations are avoided and the booklet requires only a …

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XRF Sample Preparation Methods/Procedure

What is x-ray fluorescence and why is XRF sample preparation is important for correct XRF analysis. This is a little introduction to some of our instruments; from left to right we have the X-MET7000 series these hand held analyzers are great for their versatility and portability, the X-Supreme in the middle is used for bulk analysis of liquid, powder and solid sample and the X-Strata 980 on ...

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Rubber / Plastic | Products | JEOL Ltd.

JEOL Mass Spectrometer. CRAFT (Complete Reduction to Amplitude Frequency Table) NM170001. MALDI Application: Analysis of high molecular weight polystyrene standards by using JMS-S3000 "SpiralTOF™" with Linear TOF option. MSTips 99. How to Set the Flip Angle to Maximize the Sensitivity per Hour: Meaning of Ernst Angle. NM130017E

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US20080192889A1 - Handheld x-ray fluorescence spectrometer ...

A handheld X-ray fluorescence (XRF) spectrometer is described. The handheld XRF spectrometer comprises a radiation source, a silicon drift detector (SDD), a cooling device configured to regulate the temperature of the SDD, at least one signal processing and power control module coupled to at least one of the radiation source, the SDD, and the cooling device, and a housing substantially ...

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X-Ray Fluorescence (XRF) - SERC

An X-ray fluorescence (XRF) spectrometer is an x-ray instrument used for routine, relatively non-destructive chemical analyses of rocks, minerals, sediments and fluids. It works on wavelength-dispersive spectroscopic principles that are similar to an electron microprobe ( EPMA ). However, an XRF cannot generally make analyses at the small spot ...

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Effect of Calcium Carbide Waste Powder on Some Engineering ...

X-Ray Fluorescence Analysis: Mini Pal 4 Energy dispersive X-ray fluorescence (XRF) bench-top spectrometer was also used to perform nondestructive chemi-cal analysis of elemental oxides present in the different wastes used. The CCWP and BLA were loaded into the sample holder and placed in the appropriate sam-ple tray.

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Maurizio MAZZUCCHELLI - personale UniMore - pubblicazioni

The Laser Ablation Coupled with a Mass Spectrometer (as in the LA–ICP–MS) allows to investigate any hard material at the scale of a few µms, for example, defining the elemental compositional profile of bone, teeth and nephroliths, measuring any element with an atomic mass between 2 and 255 amu (i.e. heavy metals as Pb, Cr, Cd, As, etc.).

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Combining XRF and XRD analyses and sample preparation to ...

Wavelength dispersive XRF Spectrometer with a Rliodium tube, LÍF200, LÍF220, GER. AXO6 (a 50Â synthetic multilayer) and PKT analysing crystals, with a f!ow proportional and scintÜlation detector, l^ata reduction is performed using three different software approaches: WINXRF using the COLA algorithm (Lachance and Claisse, 1980) with ...

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Application of Portable Total-Reflection X-Ray ...

sium composition in a NdFeB magnet on-site using a portable total-reflection X-ray fluorescence (TXRF) spectrometer. This method leads to drastic reduction of dysprosium loss caused by dissolving a NdFeB magnet because the portable TXRF spectrometer requires a small sample volume for measurement and its detection limit is as low as the ppb level.

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XRF - Bruker

the weight of the meteorite to be about 300,000 t and with the diameter to be about 45 m. It has hit the earth with a speed of 15 – 30 km/s. This meteorite belongs to the class of iron-nickel objects originated from the asteroid belt. About 30 t of the initial mass have been found so far. The Canyon Diablo is scientifically one of the most

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Hornblende Chemistry in Meta- and Diatexites and its ...

A suite of calc-alkaline arc rocks in the Pangong Metamorphic Complex in the Karakoram Shear Zone, Ladakh, NW India, was migmatized at upper amphibolite facies under water-fluxed conditions. Meta- and diatexites contain abundant hornblende in both leucosome and melanosome. These form idiomorphic, poikilitic megacrysts in the leucosome and in melanosome rims around …

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Issue No. 20, December 2010 - IAEA

XRF detectors and is easily modifiable and adaptable to most of the typical needs in the field of XRF analysis. A newsletter from the IAEA Laboratories, Seibersdorf Issue No. 20, December 2010-• Activities in the IAEA XRF Laboratories - A low cost digital spectrometer for XRF analysis 1 • Meetings - …

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Spectroscopy Polymer Analysis | Thermo Fisher Scientific - US

Spectroscopy Polymer Analysis. Formulate, characterize, and measure your materials using Thermo Scientific rheology, compounder, torque rheometer and mixer, extrusion and spectroscopy technologies. Whether you support research, QA/QC, product development or production, our products are designed to solve everyday challenges.

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Fuel and Oil | Bruker

However, lowering S in fuel may cause a reduction in lubricity which can affect aircraft engine and fuel system performance. Consequently, maintaining the optimum S level is critical. X-ray Fluorescence (XRF) analysis is a reproducible and accurate screening method of sulfur in fuel oil for compliance with worldwide pollution regulations.

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Low-Temperature Sintering of High-Siliceous Clay und er ...

specimens were determined with use of an S8 TIGER X-ray fluorescence spectrometer (XRF) (Bruker). The linear shrinkage of specimens was determined as, % = [(l0 ± l1)/ l0] ·100, where l0 is the initial length of blanks and l1 is the length of blanks after sintering (ceramics). The

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Conversion of Mill Scale Waste into Valuable Products via ...

The chemical composition was determined using X-ray fluorescence, XRF (Philips PW 1410 X-ray spectrometer with PW 1390 channel control). Phase analysis was observed using X-ray diffractometer, XRD, Bruker AXS D8 Advance, Germany. Different series of …

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Principles and Applications of Thermal Analysis ...

Principles and Applications of. Thermal Analysis Principles and Applications of Thermal Analysis. Edited by Paul Gabbott C 2008 by Blackwell Publishing Ltd. Blackwell Publishing editorial offices: Blackwell Publishing Ltd, 9600 Garsington Road, Oxford OX4 2DQ, UK Tel: +44 (0)1865 776868 Blackwell Publishing Professional, 2121 State Avenue, Ames, Iowa 50014-8300, USA Tel: +1 515 292 …

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X-RAY FLUORESCENCE (XRF) - PhysLab

XRF spectrometer and its types X-Ray Fluorescent (XRF) Spectrometers use a technique, in which x - rays are used to excite a sample and generate secondary x-rays. The technique provides determination of major and trace elements in solids. The two main types of XRF spectrometers are 1. Energy dispersive (EDXRF), using a solid-state detector (usually

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Product Review - Castings SA | Castings SA

Spectro introduces Spectro Midex MID05 small-spot ED-XRF spectrometer for precious metals testin Spectro Analytical Instruments has introduced the Spectro Midex MID05 spectrometer – a fifth-generation, fast, accurate, small-spot energy-dispersive X-ray fluorescence (ED-XRF) analyser for precious metal testing.

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GHWHFWRUV …

2.1 Portable spectrometer The spectrometer used in this work consists of an Eclipse IV Amptek X-ray tube (45kV 50µA) with a Rh anode. The outgoing radiation is collimated by a tantalum collimator resulting in a 5 mm beam diameter at the sample surface. The sample is placed at a distance of 55 mm from the X-ray

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Chemical, microstructural, and phase changes of manganese ...

Quantitative chemical composition of the ores was studied by the X-Ray Fluorescence technique (Philips Magix-Pro XRF spectrometer (4 kV)). Phase analyses of ore samples, calcined samples, and pre-reduced samples were studied by the X-Ray Diffraction technique (Bruker D8 A25 DaVinci X-Ray Diffractometer with Cu-Kα radiation with a

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Thermoplastic resins containing PBT units, having reduced ...

Alternatively, it may be determined by analysing the resin, for example, by X-ray fluorescence (XRF) or atomic emission or absorption spectroscopy. In most cases, the titanium catalyst is present in an amount of at or about 10 to 1000 ppm (i.e. approximately 0.2 to 21 moles Ti per 1000 kg resin), commonly in the range of at or about 100 to 400 ...

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In-situ investigation of melting characteristics of waste ...

The additive formula of 39.00% Fe2O3 (in weight), 6.50% CaO, 3.30% SiO2, and 1.20% Al2O3 achieves the optimal fluxing behavior, significantly decreasing the initial melting temperature from 1223 °C to 1169 °C. Furthermore, the whole heating process of waste SCR cata lysts can be divided into three stages: the solid reaction sta ge ...

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14th International Conference on Nuclear Microprobe ...

This so-called SLcam® comprises poly-capillary optics guiding the proton-induced X-ray fluorescence radiation towards a 264×264 pixel pnCCD-chip, each with an energy resolution of 156 eV (@Mn Kα). Two X-ray optics are available, with a magnification of one and six, allowing a field of view of 12×12 mm² and 2×2 mm², respectively.

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X‐Ray Fluorescence Spectrometry (XRF) - Shackley - - Major ...

Abstract. While X-ray fluorescence spectrometry (XRF) has fallen out of favor in a number of sciences, it has seen increasing popularity in archaeology, in part due to portable XRF (pXRF) availability and relatively low cost. Laboratory/desktop XRF, however, is still the mainstay of this technique in archaeology mainly due to the ability to ...

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Gamma-Ray Spectroscopy - an overview | ScienceDirect Topics

The Vega 1 XRF spectrometer failed, and only γ-ray data are available. The K/U ratio is similar to those at the Venera 9 and 10 sites. The Vega 2 XRF and γ-ray data suggest rocks, like those at the Venera 14 site, namely, weathered N-MORB-like basalts. The difference between the K content determined by the XRF and γ-ray instruments may ...

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Fossilized solidification fronts in the Bushveld Complex ...

This gives a fit with a linear function f(x)=x between the in-house and portable XRF data and an R-squared correlation coefficient of 0.97 (Supplementary Fig. 1). …

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(PDF) A new sample preparation method for WD-XRF analysis ...

In this sense, wavelength dispersive -X-ray fluorescence (WD-XRF) is an attractive technique being used in direct analysis of several types of complex samples [14][15][16] [17] [18][19]. WD-XRF is ...

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Surface Modification of Fumed Silica by Plasma ...

The weight loss increases with increasing RF power up to a maximum at 150 W RF power; further increase of the plasma RF power results in a decrease of the weight loss. This non-linear correlation can be explained by an increasing electron concentration in the …

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Micro X-ray fluorescence analysis of Roman Imperial coins ...

3. The μ-XRF measurements. The analyses were performed by a μ-XRF spectrometer equipped with an X-ray tube with Mo anode, working at HV = 50 kV, i = 100 μA, a polycapillary lens with focal spot size of 80 μm and a 7 mm 2 Si-PIN detector. The working conditions of the X-ray tube combined with the lens transmission bandwidth provide a primary spectrum mainly consisting of the …

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Prototype GaAs Xâ ray detector and preamplifier ...

tal analysis (e.g., X‐ray fluorescence spectrometry, XRF) in the ocean would revolutionise scientifically motivated and economically motivated surveying and prospecting. A remotely operated vehicle equipped with an XRF spectrometer or neutron activation analysis package has been proposed for this application.[3] For mining,

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Total Reflection X-ray Fluorescence Analysis. Section 1

Total Reflection X-ray Fluorescence Analysis Section 1: Introduction 4 1.1.1- Total reflection phenomenon Contrary to the behavior of the visible light photons, for X-rays any medium is less dense than vacuum and any solid is optically less dense than air. This results in a refracted beam deflected toward the interface. Following this

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