Abstract:In this work, a fast and low-cost method for the highly selective determination of ultratrace Hg(II) ions by total-reflection X-ray fluorescence spectrometry (TXRF) is presented. The method is based on...
“…The LODs for a short measurement time of 600 s were 0.001-0.002 ng mL À1 for all elements except Cd for which the LOD was 0.11 ng mL À1 . Low LODs were also obtained 67 by the same group by preconcentrating Hg II from aqueous samples with a high ionic load (e.g. seawater).…”
Section: Grazing X-ray Techniques Including Txrf Spectrometrymentioning
This review covers developments in and applications of XRF techniques such as EDXRF, WDXRF, TXRF, XRF microscopy using technologies such as synchrotron sources, X-ray optics, X-ray tubes and detectors in laboratory, mobile and hand-held systems.
“…The LODs for a short measurement time of 600 s were 0.001-0.002 ng mL À1 for all elements except Cd for which the LOD was 0.11 ng mL À1 . Low LODs were also obtained 67 by the same group by preconcentrating Hg II from aqueous samples with a high ionic load (e.g. seawater).…”
Section: Grazing X-ray Techniques Including Txrf Spectrometrymentioning
This review covers developments in and applications of XRF techniques such as EDXRF, WDXRF, TXRF, XRF microscopy using technologies such as synchrotron sources, X-ray optics, X-ray tubes and detectors in laboratory, mobile and hand-held systems.
“…By combining DSPME pre-concentration with XRF detection, Hg was quantified in the parts-per-trillion range for a variety of waters, beverages, foods and tissues in two studies by Musielak and co-workers. In the first, 131 thiosemicarbazide-functionalised carbon nanotubes were used to selectively adsorb Hg II from the sample within 10 min, followed by analysis with TXRF spectrometry. The approach achieved an LOD of 2.6 pg mL −1 for 600 s measurement time with a sample enrichment factor of 200.…”
Section: Progress With Analytical Techniquesmentioning
This review discusses developments in elemental mass spectrometry, atomic absorption, emission and fluorescence, XRF and LIBS, as applied to the analysis of specimens of clinical interest, foods and beverages. Sample preparation procedures and quality assurance are also included.
“…13 Although these tests provide reliable and accurate results, most of them require strict implementation conditions such as precision instruments and professional operators. 14,15 The photoelectrochemical (PEC) technique is a rapid and sensitive method for detecting Hg 2+ in the environment that many researchers are interested in. [16][17][18][19] Developed from electrochemistry, the benefits of PEC include its ease of use, low cost, and real-time detection.…”
In this work, a photoelectrochemical (PEC) aptamer sensor using TiO2/AgInS2/ZnS composite material as photoelectric active anode substrate and NiCo-MOF@Au as quenching element is constructed to detect Hg2+. Titanium dioxide (TiO2)...
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