Electrochemical determination of inorganic mercury and arsenic—A review

Inorganic arsenic speciation by electroanalysis. From laboratory to field conditions: A mini-review

“…Reviews [1,12] give the regulations for the levels of As concentration permitted in different samples and the list of certified reference materials for arsenic [6]. Other reviews consider the special features of As and its species determination by a variety of techniques [6][7][8][13][14][15]including voltammetric methods [9], as well as various combined techniques of which HPLC-ICPMS is the most powerful [6,14,15]. Critical overviews of review articles dealing with As speciation are given in [14,16].…”

A Label-free “Turn-on” Fluorescence Method for Detecting Mercury Ion in Aqueous Solution Based on N-Methyl Mesoporphyrin IX (NMM)/G-quadruplex DNA

“…6,7 The traditional methods [8][9][10] mainly rely on inductively coupled plasma mass spectrometry (ICP-MS), atomic absorption spectrometry (AAS), atomic fluorescence spectrometry (AFS) and X-ray fluorescence spectroscopy (R-FS). Although these methods provide satisfying detection performance, they require expensive instrumentation and skilled personnel to accomplish the operational procedures.…”

“…Although these methods provide satisfying detection performance, they require expensive instrumentation and skilled personnel to accomplish the operational procedures. To overcome this issue, several types of mercury-ion sensors have been developed based on small organic molecules, [11][12][13][14] gold nanoparticles, [15][16][17][18] aggregation-induced emission (AIE), [19][20][21] nanotubes, 22,23 electrochemical techniques, 7,24 DNAzymes 25 and proteins. 26 Many of these sensors show sufficient sensitivity and selectivity for the detection of mercury in aqueous solution; however, most of them still suffer from several limitations, such as low water solubility, sophisticated synthesis procedures, difficult modification of the probe materials and sample matrix interference.…”

An Ultrasensitive and Selective Probe for Ratiometric Determination and Removal of Hg2+

“…The US Environmental Protection Agency (EPA) and World Health Organization (WHO) have set the maximum allowable levels of Hg 2? in drinking water at 2.0 and 6.0 ppb [8]. Over the past years, lots of analytical methods have been developed for detection of Hg 2? , including atomic absorption/emission spectroscopy (AAS/AES) [9], inductively coupled plasma mass spectrometry (ICP-MS) [10], colorimetric methods [11][12][13][14], fluorescent sensors [15][16][17], and electrochemical approaches [18][19][20][21]. However, exploration of ultrasensitive and selective probes for on-site monitoring of Hg 2? , as well as for effectively removing it from water, is highly pressing [22,23].…”