Electrical Fusion Machine - New electrical fusion system for x-ray fluorescence analysis
Poster Mar 11, 2015
Dr. Rainer Schramm, FLUXANA GmbH & Co. KG; Prof. Marie-Louise Klotz, Hochschule Rhein-Waal, Dr. Myint Myint Sein, Hochschule Rhein-Waal
In x-ray fluorescence analysis (xrf) sample preparation is an important step of the analysis procedure. For the determination of main components very often borate fusion is used. So far there are several gas and electrical fusion systems in the market.
We have now developed a new automatic electrical furnace which overcomes the well known problems and disadvantages of systems based on muffle furnaces.
The design represents a lift bottom oven where the door is the bottom and might be opened using a lift for loading the sample. The crucible containing the sample and the mould are held by a rack which is placed by an autosampler on the lift. The homogenization of the sample inside the furnace is solved by turning the bottom from outside with a motor bidirectional.
The casting function is overtaken by the autosampler while the rack with the crucible is unloaded from the furnace.
The new system shows excellent precision and accuracy for all elements typically analyzed in oxidic materials like cements, gypsum, sands, iron ores, clays, geological samples etc.
The closed design helps also to avoid the loss of volatile elements like sulfur, fluorine and chlorine.
Analysis of Extract Drying Criteria for Oil & Grease Method 1664A/BPoster
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Fundamentals and Comparisons for Organic Sample Extract EvaporationPoster
Sample preparation is a key step in the analysis process
Parameters for evaporation and their impact on analysis have been discussed
Improvements in matching the sample to the evaporation device characteristics can help reduce variability and improve recovery
Examples for choosing a system based on sample volume, types of analytes, sample load, and initial investment considerations
Using Elemental Analysis For Discrimination Of Pinot Noir Wines From Six Different Districts In An AvaPoster
The determination of geographical origin of wine is gaining increased interest by researchers and federal agencies around the world, partially due to increased fraud with regards to place of origin labelling. For wine, multi-elemental profiling of macro, micro, and trace elements has been proposed for determination of authenticity. Commercial wines from different wineries in 5 different neighborhoods within one AVA show characteristic elemental fingerprints. Macro, micro and trace elements as well as elemental ratios contribute to the observed separation, indicating the involvement of multiple factors and underlying mechanisms, including location and soil composition, elemental uptake by vine and rootstock, viticulture and nutrient management, water sources, and small differences in the different wineries.READ MORE
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