Inductively coupled plasma (ICP) following aqua regia digestion and X-ray fluorescence (XRF) are both geochemical techniques used to determine 'total' concentrations of elements in soil. The aim of this study is to compare these techniques, identify elements for which inconsistencies occur and investigate why they arise. A study area (∼14,000 km(2)) with a variety of total concentration control...

Dust samples collected from the Beijing metropolitan area (China) were evaluated to determine the distribution and the concentration of platinum group elements (PGEs). The dust particles that were smaller than 100 mesh size fraction (150 microm) were analyzed after aqua regia digestion. Concentrations of Pt, Rh, and Pd were found to be between 3.96 and 356.3 ng/g, 2.76 and 97.11 ng/g, and 0.1 a...

Suminda Hapuarachchi and Thomas G. Chasteen* Department of Chemistry 1003 Bowers Boulevard, CFS317e Sam Houston State University Huntsville, TX 77340, USA E-mail: [email protected] Abstract The chemical interferences of Hg, Sn, Pb , Fe, Bi, and Te in the hydride generation atomic absorption spectrometry (HG-AAS) determination of selenium have been studied but interference from the glassware com...

A crude extract of the bark of Juglans regia Linn, tested against 13 species of fungi, showed selective fungistatic action against some species of the dermatophytes tested.

This study focuses on the quantification of heavy metals present in 18 sand beaches islands Malta and Gozo. A total 134 samples were collected, digested using Aqua Regia, analysed flame AAS to find concentration six metals. Concentrations obtained descending order are: Sr > Fe Mn Pb Zn Cu. Using PCA, resulted as homogenous distributions with a probable prevalent lithogenic origin. is possibl...

Aim: Many traditional treatments have been recommended in the alternative system of medicine for treatment of diabetes mellitus. Juglans regia is one of the medicinal plants used in traditional Iranian medicine as a treatment for diabetes, but little scientific documentation supports its antidiabetic action. Th e purpose of this study was to investigate antidiabetic eff ect of J. regia leaves i...

In the opportunity to understand benefits of Maltese soil and its importance our climate, content heavy metals—including Co, Cr, Cu, Fe, Mn, Ni, Pb, Sr, Zn—was studied in two fields proximity south-east region Malta. Analytical determinations were carried out using atomic absorption spectroscopy following heated aqua regia digestion on 50 collected samples triple repeatability. The decreasing p...

The former manganese ferroalloy plant and the remaining tailings are affecting quality of environment in Šibenik Bay, Croatia, even though industrial activities ceased more than 25 years ago. This study has revealed that main mineral phases present recently collected tailings, as well dust on roof during production period, bustamite Mn-oxides. same type Mn was also found sediments from Bay. Det...