What is XRF technique?
What is XRF technique?
XRF (X-ray fluorescence) is a non-destructive analytical technique used to determine the elemental composition of materials. XRF analyzers determine the chemistry of a sample by measuring the fluorescent (or secondary) X-ray emitted from a sample when it is excited by a primary X-ray source.
What is TXRF?
Total reflection X-rays fluorescence (TXRF) is a surface elemental analysis technique often used for the ultra-trace analysis of particles, residues, and impurities on smooth surfaces. TXRF is essentially an energy dispersive XRF technique arranged in a special geometry.
Why is XRF important?
Oil and gas exploration: Portable XRF analyzers are valuable for upstream exploration and production, offering rapid, on-site chemical analysis of rocks, cuttings, and cores that can be used for identifying formations and determining mineral composition of the rock.
What is Wdxrf spectrometer?
Wavelength Dispersive X-ray Fluorescence (WDXRF) is one of two general types of X-ray Fluorescence instrumentation used for elemental analysis applications. Sequential spectrometers use a moving detector on a goniometer to move it through an angular range to measure the intensities of many different wavelengths.
Can XRF detect minerals?
X-ray fluorescence spectra are collected by exciting the sample with an X-ray beam. The spectra indicate the mineral’s specific chemical composition (or composition range). They can be used to identify the mineral, like a fingerprint. The spectra are then compared to an extensive library to identify the minerals.
What is the source of XRF?
In most cases for XRF, the source is an X-ray tube. Alternatives are a radioactive source or a synchrotron. There are two main types of XRF instruments: Energy Dispersive X-ray fluorescence (EDXRF)and Wavelength Dispersive X-ray Fluorescence (WDXRF).
What does TXRF stand for?
Total reflection X-rays fluorescence (TXRF) is a surface elemental analysis technique often used for the ultra-trace analysis of particles, residues, and impurities on smooth surfaces.
What is TXRF (total reflection X-ray fluorescence)?
Total reflection X-ray fluorescence (TXRF) is widely used in trace elements, ultra-trace element, and multi-element analysis due to its low detection limit and low energy spectrum background count. This article studies the development and application of TXRF.
What is txtxrf analysis?
TXRF is a rather versatile and cost-effective method for multi-elemental analysis. It can be used as micro-analytical tool for minute specimens, such as small grains deposited in the sample carrier. It has been effectively applied to element trace analysis in various fields of research.
What is the history of total reflection X-ray fluorescence spectroscopy?
In 1981, the West German Rich Seifer Company successfully developed the first commercial total reflection X-ray fluorescence spectrometer. Since then, the development and application of the TXRF instrument have been rapidly developed and improved. Since 1984, several TXRF seminars have been held internationally [ 19 ].
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