A rapid acid digestion method with ICP-MS detection for the determination of selenium in dry sediments

Trace determination and chemical speciation of selenium in environmental water samples using catalytic kinetic spectrophotometric method

“…It is an important trace element for human health as being incorporated in proteins, shows anti carcinogenic role and prevents heavy metal toxic effects [3][4][5]. Naturally, Se is present in earth's crust in low amounts (0.05 g g −1 ), however, its compounds are now widely spread throughout the environment from the combustion of fossil fuels, improper disposal of wastes from activities such as mining, uses in the glass and electronic industries as well as agriculture [6]. Selenium mobility in the environment, availability for biota and toxicity depends on its oxidation state [7] and so its speciation is necessary.…”

Validation of a digestion procedure for ICP-AES and dynamic reaction cell ICP-MS for trace elemental analysis in environmental samples

“…HCl) extracts with deionised water to bring chloride concentration below 0.4% v/v that the ICP-MS can tolerate (USEPA 1994a;Melaku et al 2005;Pinho et al 2005). However, this dilution approach increases method detection limit (MDL) thus compromising high sensitivity of the ICP-MS.…”

In situ electrochemical detection of trace metal vapors at bismuth doped carbon screen printed electrodes

“…The attractions of this technique are mainly the rapid kinetics of the hydride or vapor-generation reaction, high and reproducible reaction efficiency, and the stability of the analyte species during their transport from the liquid phase to the gas phase and from the reaction/separation vessel to the detection unit. It is indisputable that the technique is dependable and well-recognized for use in the analysis of this limited group of elements in a variety of complex and difficult samples [4][5][6][7]. Growing environmental concerns have generated major demands for innovative field-deployable tools for detecting traces of chemical vapors in a fast, sensitive, reliable and simple manner.…”