Trace level voltammetric determination of heavy metals and total mercury in tea matrices (Camellia sinensis)

Melucci, Dora; Locatelli, Marcello; Locatelli, Clinio

doi:10.1016/j.fct.2013.10.029

Cited by 31 publications

(17 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Subsequentially, a sample digestion procedure using the Vigreux column was proposed for the determination of mercury in core sediments by cold vapour atomic fluorescence spectroscopy [97]. In the last times, this same research group has established sample preparation procedures using Vigreux column and oxidant acid mixtures for determination of mercury in foods as: vegetables [98], teas [99], meals [100] and other matrices [101,102] employing square wave anodic stripping voltammetry (SW ASV) using a gold electrode.…”

Section: Microwave Heatingmentioning

confidence: 99%

Analytical strategies of sample preparation for the determination of mercury in food matrices — A review

Ferreira

Lemos

Silva

et al. 2015

Microchemical Journal

View full text Add to dashboard Cite

Section: Microwave Heatingmentioning

confidence: 99%

Analytical strategies of sample preparation for the determination of mercury in food matrices — A review

Ferreira

Lemos

Silva

et al. 2015

Microchemical Journal

View full text Add to dashboard Cite

“…Table 3 shows some published works from 2010 that involve the use of conventional mercury electrodes, together with some works that include a modification of the mercury electrode. The evaluation of these publications shows that HMDE is used in control analysis of Cd(II), Pb(II), Cu(II) and Zn(II) in samples related with real or potential contaminated areas which are presented as case studies [41][42][43][44][45][46][47][48][49][50][51][52][53]. ASV has been the voltammetric technique considered and almost all works are more focused on the sample and the required treatment than on the method for the analysis of these metal ions.…”

Section: Mercury Electrodesmentioning

confidence: 99%

Voltammetric determination of metal ions beyond mercury electrodes. A review

Ariño

Serrano

Dı́az-Cruz

et al. 2017

Analytica Chimica Acta

145

View full text Add to dashboard Cite

For a long time mercury electrodes have been the main choice for the analysis of metal ions and some metalloids. However, in the last years, safety and environmental considerations have restricted their use and encouraged the search for alternative materials more environmentally friendly and with more possibilities for in-situ and flow analysis. This research has been reinforced by the popularisation of nanomaterials, biomolecules and screen-printed electrodes, as well as for the new advances in sensor miniaturization and integration of the electrodes in multi-sensor platforms and electronic tongues. The present review critically summarizes and discusses the progress made since 2010 in the development and application of new electrodes for the analysis of metals and metalloids.

show abstract

“…Following our previous research on plant materials used as tea (Melucci et al, 2013), foods (Sobolev et al, 2018;Di Sotto et al, 2018), food supplements , traditional herbal medicine , and their content of toxic/heavy metals (Locatelli et al, 2014;Melucci et al, 2018), we highlight and complete here the phytochemical information on this traditionally used medicinal plant.…”

Section: Introductionmentioning

confidence: 99%

Phenolic Profile and Bioactivities of Sideritis perfoliata L.: The Plant, Its Most Active Extract, and Its Broad Biological Properties

et al. 2020

Self Cite

View full text Add to dashboard Cite

Sideritis, also named "ironwort," "mountain tea," or "shepherd's tea," is a genus of flowering plants used as herbal medicine in traditional Mediterranean-area medicine systems, and these plants are generally consumed as a herbal tea. Its use as herbal tea and in traditional herbal medicine is quite popular. There are currently few studies on Sideritis perfoliata L., and only one reports the use of a liquid chromatography coupled to diode array detection and electrospray ionization tandem mass spectrometry (LC-DAD-ESI-MS n ) profile and the content of phenolic compounds without considering a possible correlation with its biological activities. This paper aims to investigate the antioxidant activities by means of several different biological/biochemical assays (radical scavenging, reducing power, ferrous ion chelating, and total antioxidant by phosphomolybdenum and b-carotene bleaching methods) as well as analyze the enzyme inhibitory activities (against AChE (acetylcholinesterase), BChE (butyrylcholinesterase), tyrosinase, a-glucosidase, and a-amylase) as well as the total phenolics, flavonoids, and condensed tannins. The reported results on Sideritis perfoliata highlighted that methanol and water extracts generally showed higher radical scavenging and reducing power activities. A similar trend could be observed for phosphomolybdenum and ferrous ion chelating activities. Methanol extracts showed lower activity only for the b-carotene bleaching assay.

show abstract

Trace level voltammetric determination of heavy metals and total mercury in tea matrices (Camellia sinensis)

Cited by 31 publications

References 31 publications

Analytical strategies of sample preparation for the determination of mercury in food matrices — A review

Analytical strategies of sample preparation for the determination of mercury in food matrices — A review

Voltammetric determination of metal ions beyond mercury electrodes. A review

Phenolic Profile and Bioactivities of Sideritis perfoliata L.: The Plant, Its Most Active Extract, and Its Broad Biological Properties

Contact Info

Product

Resources

About