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SRC Microwave Digestion of Heavy Crude Oil
Single reaction chamber (SRC) microwave digestion offers significant benefits over traditional dry ashing for sample preparation of heavy crude oils: higher sample throughput, reduced risk of contamination, and retention of volatile analytes.
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Understanding Calibration for GD-AES
This application note demonstrates the optimal way to calibrate LECO’s GDS850A (reference materials used, lamp source, and other considerations), and the importance of this calibration to the spectrochemical analysis.
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Mineral Analysis with Handheld LIBS
This paper describes a handheld LIBS device that analyzes major elements, transition, and heavy metals in geochemical samples. A breakthrough of this technique is the ability to analyze very low atomic number elements including H, Li, Be, B, C, F, Na and others never before measured in the field with a handheld analyzer.
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EDXRF Analysis of Silicone Coating on Paper and Plastic
Paper and plastic are coated with a thin layer of silicone during the manufacture of labels, tape, or other adhesives, or as a barrier coating against air in the packaging of food, medical products, and other materials. EDXRF analysis with the Rigaku NEX QC is shown to be an excellent tool for measuring silicone coating to ensure the proper physical properties of the product are maintained.
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At-Line Analysis Using ED-XRF Spectroscopy to Detect Metals in Food
To protect the food supply, processors have traditionally used laboratory-based quality control methods such as ICP-OES or AAS spectroscopy. These methods of elemental analysis have been used successfully for years but add substantial costs and delays to the process. This paper explains how a new generation of high-resolution rapid screening technology, portable ED-XRF spectrometers, used right at-line is starting to change work processes.
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Mitigating Matrix Effects with Advanced Spectra Handling Functionality
A key advantage of high accuracy ED-XRF analysis is its ability to measure samples directly, with minimal preparation enabling rapid screening. For accuracy, this requires eliminating errors called matrix effects. But for consistently high-accuracy results, especially when sample contents are unknown, additional spectra handling functionality is required. This paper explains why this additional functionality is critical to ensure consistently high-accuracy results.
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