Fluorine compounds possess a wide range of properties, including flame retardance, water repellency, anti-fouling property, and heat resistance, and are therefore used in a wide range of fields from articles for everyday use to semiconductors. However, since the 1980s, the problems of global warming and ozone depletion in addition to the potential for bioaccumulation have led to strengthened legislation and self-regulation. In response to these environmental problems and associated safety concerns, many of today's companies are beginning to use CFC substitutes and develop and promote products for reducing the adverse effects of anti-perfluorooctanoic acid (PFOA). Here we introduce two examples of analysis of these products and test specimens using the EDX-800HS Energy Dispersive X-ray Fluorescence Spectrometer.
Select Science recently interviewed Professor Gene S. Hall, who leads a research team in the Department of Chemistry and Chemical Biology at Rutgers University in New Jersey, USA. They are detecting fraudulent fish oil and their work includes the Pearl FTIR accessory.
Gene spoke to Select Science about elements of his work surrounding the identifaction of fraudulent fish oil, specifically in nutritional and dietary fish oil supplements. For this work, Gene utilized techniques including Fourier-transform...
Cement is a primary building material in the modern world; as a major constituent of buildings, concrete structures and roads the consistency of its composition during production is essential.
A major method of quality control (QC) for cement production is XRF spectroscopy as it can provide fast and accurate analysis in cement manufacturing using in-line methods to ensure 24/7 results. XRF analysis is used at several stages of the cement analysis process:
Evaluation of raw materials at the quarry
To assess...
Cement analysis using FP program (Fundamental Parameters)
Cement is a blend of several minerals. It is critical to control the elemental composition and properties such as strength, setting, time and color. ED-XRF is being used to analyze the raw components, raw meal, clinker, and the final cement product (Na, Mg, Al, Si, S, K, Ca, and Fe in Cement, Clinker, and Raw Meal).XRF is at the heart of the control of the production process in any modern cement works and is central to the ability of the cement maker...
Abstract
Quantitative and qualitative analysis of geological samples (rocks and river sediments) was performed on Xenemetrix EDXRF Benchtop Spectrometer System, model X-Calibur
Objective:
Perform XRF measurements on certified geological reference materials to build calibration curves for the major oxides (Na2O, MgO, SiO2, Al2O3, SiO2, P2O5, SO3, K2O, CaO, TiO2, MnO and Fe2O3) and for trace elements Cr, Co, Ni and Pb in these samples.
Quantify geological samples of unknown concentrations with respect to...
Goal:To analyze all elements present in PVC and PMMA polymer layers with special attention to Pb, Zn, Ca, and Sn. Instrument:Xenemetrix made X-Calibur EDXRF analyzer with High resolution Silicon Drift Diode Detectors (SDD).
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