Elemental analysis is a chemical analysis method for studying the composition of elements in organic compounds. There are two types of analysis: qualitative and quantitative. Alfa Chemistry has some elemental analyzers that can provide tailor-made solutions for a wide range of samples and concentrations. Our JEOL JSM 5900LV High and Low Vacuum Scanning Electron Microscope with an EDX & XRF-based elemental analysis services can help you to obtain real data with precision and efficiency.
JEOL JSM 5900LV High and Low Vacuum Scanning Electron Microscope with an EDX & XRF
MANUFACTURER: JEOL
Electrons striking the specimen react with the atoms of the sample surface and produce three types of signals: X-rays, electrons, and photons. The main detector system picks up the electrons, amplifies them and converts them into electrical voltage. The scan generator signal, fed to the deflection system of the column, moves the beam in a raster pattern over the specimen area. At approximately the same time the monitor for viewing the image is also scanned. The electrical voltage changes as it rasters, which provides serial information of the specimen surface. This signal, modulated by the one from the detection system, produces a theonscreen image.
The other detectors include: back-scatter detector, secondary electron detector, CCD camera and energy dispersive X-ray (EDX) detector. The EDX detector is capable of measuring light elements. An X-ray source is also available, allowing X-ray fluorescence spectroscopy (XRF) analysis, which is capable to measuring heavier elements.
The scanning electron microscope (SEM) produces enlarged images of a variety of specimens, achieving magnifications of over 100,000×. This important and widely used analytical tool provides an exceptional depth of field, minimal specimen preparation, and the ability to combine the technique with X-ray microanalysis.
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