Background: The method of proton induced X-ray emission (PIXE) has been widely used as a sensitive technique to trace elemental analysis in both biological and medical fields. The sensitivity of this powerful method is in the order of ppm .The aim of this work is to analyze structural composition of 4 heavy trace elements with Z greater than 24 (Mn, Fe, Cu, Zn) in two kinds of gallstones and to...

Over the past several years, there has been an alarming increase in the death rate of some Florida alligators and a large decrease in the hatch rate of eggs. Several studies have been conducted to try to find a cause. These studies have ruled out toxins in the environment and high levels of toxic metals (mercury, for example). A previous study using Particle Induced X-ray Emission (PIXE) analys...

The elemental distributions over epidermal skin cross sections as revealed by proton probe analysis on cryosections from human skin provides new insight into the physiology of skin. The present investigation shows that in comparison with skin from non-afflicted individuals nonlesional skin from psoriatics reveals abnormality (higher than normal levels) in calcium (Ca), iron (Fe) and zinc (Zn). ...

The systematic determination of trace-element concentrations in honey samples was done by the PIXE method using a 2 MeV proton beam and by the total reflection XRF method. The different kinds of honey samples were collected in the period of spring–summer in three places of Poland: in the centre of Warsaw (a highly polluted region) and about 100 km east of Warsaw and 70 km southwest of Warsaw (a...

Coarse and fine particulate matter were collected at a residential area at Vashi, Navi Mumbai and the filter samples were analysed for trace elements using PIXE technique. The trend of particulate matter showed higher concentrations during winter than the summer and monsoon concentration levels. High concentrations of elements related to soil and sea salt were found in PM10 and PM2.5. Also high...

• Analyses by PIXE show that tomato paste major elements are Cl, K and Na. Significant differences in concentrations found between at least 2 brands. Fe Al the main constituents of cans Tetra Pak® respectively. Higher concentration canned paste. Increasingly as a function storage time. The elemental three brands Brazilian packed cardboard boxes were determined through Particle-Induced X-ray Emi...