Highly selective and sensitive determination of mercury ions by total-reflection X-ray fluorescence spectrometry

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...

Atomic spectrometry update: review of advances in X-ray fluorescence spectrometry and its special applications

“…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).…”

Atomic spectrometry update: review of advances in the analysis of clinical and biological materials, foods and beverages

“…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.…”

Photoelectrochemical aptamer sensor based on AgInS2 and ZnS co-sensitized TiO2 for the detection of Hg2+

“…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.…”