The application of electrochemical X-ray fluorescence (EC-XRF), for the detection of palladium (Pd) contamination in a range of solutions containing electrochemically active compounds, present in excess and relevant to the pharmaceutical and food industries, is reported. In EC-XRF, EC is used to electrochemically pre-concentrate metal on an electrode under forced convection conditions, whilst X...

Enhancement of XRF intensity was investigated by using an Au coated glass-capillary. Au was electroplated on an inner wall of the glass-capillary with a thickness of 100 nm. The Au coated glass-capillary was attached to a micro focus x-ray tube. The XRF intensity from the pure metal samples was measured by a silicon drift x-ray detector. It was confirmed that the intensity of XRF was enhanced b...

As I have discussed in the last chapter, our goal here is not to elucidate XRF for the entire scientific community – this has been done admirably by others – but to translate the physics, mechanics, and art of XRF for those in archaeology and geoarchaeology who use it as one of the many tools to explain the human past in twenty-first century archaeology. While not a simple exercise, it has util...

Several samples coming from the recently discovered (February 2019) Late Bronze Age/Early Iron Age Chovdar necropolis in Azerbaijan were analysed using X-ray fluorescence (XRF) technique. The analysis allowed a preliminary classification of eight groups based on their composition, obtained XRF spectra fundamental parameter method. A more detailed was then graph clustering

Confocal X-ray fluorescence (XRF) spectrometry can be used to perform three-dimensional elemental analysis, which is impossible using general micro XRF without any collimating optics in the detection channel. In this study, we designed, for first time, a new confocal line (C-L-XRF) system that obtain information of larger area and higher intensity analysis than conventional point (C-P-XRF) anal...

The particulate matter (PM) concentration and composition, the PM10, PM2.5, PM1 fractions, were studied in the urban area of Genoa, a coastal town in the northwest of Italy. Two instruments, the continuous monitor TEOM and the sequential sampler PARTISOL, were operated almost continuously on the same site from July 2001 to September 2004. Samples collected by PARTISOL were weighted to obtain PM...

This paper presents the chemical and physical characterizations of SiO 2 and SiO 2 -CaO bioactive glasses incorporated with samarium atoms, produced by sol-gel synthesis. The objective is to provide biocompatible and biodegradable radioactive seeds as an alternative to be used in Brachytherapy for the treatment of prostate cancer. The glasses were produced and analyzed by X-ray fluorescence spe...

Since most micro-spectrometers are operated in air, up to now only mapping of medium and higher Z elements was possible with micro X-ray fluorescence analysis (μ-XRF). Though for some applications (e.g.: biologicaland geological samples, samples from art and archeology) the extension to light elements is of great interest. Therefore μ-XRF measurements using a polycapillary lens mounted inside a...

Gabbroic rocks were collected at Mount Tsukuba in Japan, and their XAFS images were studied using a projection-type X-ray fluorescence (XRF) microscope, which is a powerful new tool recently developed for extremely rapid imaging. The instrument employs a grazing-incidence arrangement in order that primary X-rays illuminate the whole sample surface, as well as parallel-beam optics and an extreme...

Geochemical analysis of the surface material of terrestrial type planets is of fundamental importance in understanding the geological context of the planetary environment. Consequently this analysis should be performed whenever possible and indeed this has occurred on a number of previous landers. Current techniques include X-ray fluorescence (XRF) and Rutherford back-scattering of alpha partic...