Liquid–liquid microextraction based on a dispersion of Pd nanoparticles combined with ETAAS for sensitive Hg determination in water samples

Nanoparticle-enhanced liquid-phase microextraction

“…For example, Martinis et al [78] reported the dispersion of PdNPs in toluene for the determination of Hg(II) in waters. For this purpose, dodecanethiolate-coated Pd monolayer-protected clusters were previously synthesized.…”

Hg2+ determination by DPASV by using poly (methylene disulfide)/Au nanoparticle/MWCNT modified glassy carbon electrode by differential pulse anodic stripping voltammetry (DPASV) technique

“…It is well known that the maximum environmental tolerable amount of mercury is 0.6 ppm, and therefore, accurate determination of low concentrations of mercury in water and other environmental systems is of crucial importance. Mercury is being determined with several techniques such as colorimetric methods [1,2] atomic absorption spectrometry [3][4][5][6][7][8][9][10][11], inductively coupled plasma [11][12][13], high performance liquid chromatography, ion chromatography, other separation methods [13][14][15][16][17][18][19][20][21] and hyphenated techniques [14,[22][23][24][25][26][27][28]. Some of these techniques are time consuming, expensive, and need proficiency.…”

Determination of Hg(II) and Methylmercury by Electrothermal Atomic Absorption Spectrometry after Dispersive Solid-Phase Microextraction with a Graphene Oxide Magnetic Material

“…In recent years, different microextraction techniques coupled with atomic absorption spectrometry have been used for the determination of Hg(II) [15][16][17]; however, very few works are found in the literature in which the speciation of mercury and its subsequent quantification are carried out [18]. Moreover, the analysis of MeHg in water samples is usually carried out using chromatographic techniques, although a derivatizing treatment of the sample is required [19,20].…”