Mercury(II) and methyl mercury determinations in water and fish samples by using solid phase extraction and cold vapour atomic absorption spectrometry combination

Preconcentration and determination of Mercury(II) from natural water and milk sample by Histidine functionalized multi-walled carbon nanotubes (MWCNTs-His)

“…The method developed was simple, reliable, and precise for determining Hg(II) in water. Also, the proposed method was free of interference compared to conventional procedures to determine Hg(II) (Choi and Choi, 2003;Moghimi, 2006;Tuzen et al, 2009a). The method can be successfully applied to the separation and determination of Hg(II) in binary mixtures.…”

“…In our previous attempts, we modified SPE membrane disks with suitable compounds for selective determination of Hg (Ahmad et al, 2011;Tuzen et al, 2009a). Meanwhile, other investigators have successfully utilized these sorbents for quantitative extraction and monitoring trace amounts of lead (Tahaei et al, 2008).…”

Mercury(ii) and methylmercury determination in water by liquid chromatography hyphenated to cold vapour atomic fluorescence spectrometry after online short-column preconcentration

“…9,[15][16][17][18][20][21][22]24,25,29,33,36 In others, selective retention or elution of mercury species was carried out using different complexing agents or eluting agents for each species. 19,26,28,30,31,34,35 A wide variety of detectors have been used, either for offline preconcentration or online ow injection preconcentration. Ultraviolet detection (UV), ICP-MS and atomic absorption or uorescence spectrometry with cold vapour generation (CV-AAS and CV-AFS) are the most relevant systems of detection reported.…”

“…9 In solid phase extraction as a preconcentration step, C18 cartridges have been the most widely used stationary phase, both directly and aer derivatisation [15][16][17][18][19][20][21][22][23][24] with a wide range of complexing agents, most of which contain sulphur, such as 2-mercaptoalcohols, dithiocarbamates, dithizones, triazenes, and even bacteria. [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32] A wide variety of eluting agents have also been used to desorb mercury species from the stationary phase, such as acidic solutions, thiourea solutions, mobile phases with organic-modiers, aqueous solutions with a reagent containing sulphur, and even a mixture of these kinds of solutions with an organic solvent, among others.…”

Application of Modified Magnetite Nanoparticles as a New Sorbent for Separation/Preconcentration of Mercury(II) Trace Amounts and its Determination by Cold Vapor Atomic Absorption Spectrometry

“…In this study, a new method combining nanoparticles adsorption with magnetic separation has been developed and applied for the separation and preconcentration of mercury ions. [32][33][34][35] Magnetite nanoparticles have been successfully applied to separate some proteins and organic compounds 36,37 and some heavy metal ions. [38][39][40][41][42][43] These methods were based on the solid-phase extraction of trace amounts of silver and lead ions using dithizone/sodium dodecyl sulfateimmobilized on alumina-coated magnetite nanoparticles.…”