Understanding spatial variation of potentially toxic trace elements (PTEs) in soil is necessary to identify the proper measures for preventing soil contamination at both operating and abandoned mining areas. Many studies have been conducted worldwide to explore the spatial variation of PTEs and to create soil contamination maps using geostatistical methods. However, they generally depend only o...

the task specific ionic liquid (tsil), tricaprylmethylammonium thiosalicylate ([a336][ts]),was synthesized, characterized and subsequently used as extraction solvent in dispersive liquid-liquidmicroextraction (dllme) technique. the tsil-dllme method followed by inductively coupled plasmaatomicemission spectrometry (icp-aes) was applied to determination of trace mercury (hg) and cadmium(cd) in a...

The simplified acid peroxydisulphate digestion of soil water extract was evaluated for determination of total dis solved phosphorus by molybdenum-blue colorimetry in comparison with direct P-detection in water extract by the ICP-AES technique. The research was conducted on 79 agricultural soils with different agrochemical characteristics. The results of the colorimetric P detection in water ext...

10 Quantification of electroinactive dopants in conductive polypyrrole (PPY) films was performed with electrochemistry combined on-line with inductively coupled plasma-atomic emission spectrometry (EC/ICP-AES). Anion (HSO4−) ejection out of a PPY film was first chosen as a model system and the results obtained with EC/ICP-AES were found to be comparable with values deduced by electrochemical qu...

A quantitative energy dispersive X-ray fluorescence (EDXRF) spectrometry method was developed for determining the concentration of palladium (Pd) applied to tobacco cut filler. Control and standards were created in-house with different levels of Pd concentration. After application of the Pd in a salt solution, the tobacco had an average oven volatiles (OV) value of 27.6%. Three aliquots were an...

This work deals with the comparison between three analytical techniques for the total contents analysis of heavy metals in agricultural soils polluted by copper. The soils samples are digested to clear solutions using a mixture of perchloric and hydrofluoric acids. The metals studied are copper, lead, cadmium, nickel, cobalt, zinc and manganese. Soil solutions are complex matrices and the analy...

Electrochemistry combined on-line with inductively coupled plasma-atomic emission spectrometry (EC/ICP-AES) was used to study the electrode reactions of rabbit liver metallothionein (MT) adsorbates at thin mercury films (TMFs). Three major oxidation peaks, with peak potentials at −1.20, −0.75 and −0.32 V, were observed. Through the correlation of the DPV characteristics to the elution of the Zn...

the ultrasound assisted emulsification microextraction (usaeme) method followed byinductively coupled plasma-atomic emission spectrometry (icp-aes) was used for preconcentration anddetermination of bismuth (bi), indium (in) and lead (pb) in the plant azolla filiculoides lam. calix [4] pyrrole was used as a chelating agent and tetrachloroethylene was selected as extraction solvent. the main para...

the ultrasound assisted emulsification microextraction (usaeme) method followed byinductively coupled plasma-atomic emission spectrometry (icp-aes) was used for preconcentration anddetermination of bismuth (bi), indium (in) and lead (pb) in the plant azolla filiculoides lam. calix [4] pyrrole was used as a chelating agent and tetrachloroethylene was selected as extraction solvent. the main para...

glazers are exposed to a variety of heavy metals in the ceramic industry, causing adverse effect on the body systems. cadmium is one of the major raw materials for production of colored glazes. to evaluate occupational exposure to cadmium, spot urine samples were collected from 49 tile and pottery glazers n yazd city in 2010 at the beginning and end of the work shift (98 samples). totally, 55 o...