Thallium release from acid mine drainages: Speciation in river and tap water from Valdicastello mining district (northwest Tuscany)

Campanella, Beatrice; Casiot, Corinne; Onor, Massimo; Perotti, Martina; Petrini, Riccardo; Bramanti, Emilia

doi:10.1016/j.talanta.2017.05.009

Cited by 57 publications

(47 citation statements)

References 32 publications

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“…Released ethanol and lactate were determined in CCM after 48 h incubation with three different single Tl doses: 1, 10, 100 μg/L (4.9, 49 and 490 nmol/L, respectively). These concentrations were much lower than those previously used for the treatment of other cell culture systems [ 41 – 44 ] and related to the concentrations recently found in drinking water of some contaminated regions [ 7 , 12 ]. After 48 h exposure to Tl single dose, neurons were “reperfused” with fresh CCM every 24/48 h until 7 days after the treatment and the removed CCM was collected and analysed.…”

Section: Introductionmentioning

confidence: 63%

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Thallium stimulates ethanol production in immortalized hippocampal neurons

et al. 2017

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Lactate and ethanol (EtOH) were determined in cell culture medium (CCM) of immortalized hippocampal neurons (HN9.10e cell line) before and after incubation with Thallium (Tl). This cell line is a reliable, in vitro model of one of the most vulnerable regions of central nervous system. Cells were incubated for 48 h with three different single Tl doses: 1, 10, 100 μg/L (corresponding to 4.9, 49 and 490 nM, respectively). After 48 h, neurons were “reperfused” with fresh CCM every 24/48 h until 7 days after the treatment and the removed CCM was collected and analysed. Confocal microscopy was employed to observe morphological changes. EtOH was determined by head space—solid phase microextraction -gas chromatography -mass spectrometry (HS-SPME-GCMS), lactate by RP-HPLC with UV detection. Tl exposure had significant effects on neuronal growth rate and morphology. The damage degree was dose-dependent. In not exposed cells, EtOH concentration was 0.18 ± 0.013 mM, which represents about 5% of lactate concentration (3.4 ± 0.10 mM). After Tl exposure lactate and EtOH increased. In CCM of 100 and 10 μg/L Tl-treated cells, lactate increased 24 h after reperfusion up to 2 and 3.3 times the control value, respectively. In CCM of 10 and 100 μg/L Tl-treated cells 24 h after reperfusion, EtOH increased up to 0.3 and 0.58 mmol/L. respectively. These results are consistent with significant alterations in energy metabolism, despite the low doses of Tl employed and the relatively short incubation time.

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Section: Introductionmentioning

confidence: 63%

“…Thallium concentration in drinkable water is not regulated in most countries although the occurrence of Tl in drinkable water is not exceptional or rare [ 11 ]. Thus, chronic exposure may occur for long time at Tl concentration levels ranging from 0.1 to 100 μg/L [ 7 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Thallium stimulates ethanol production in immortalized hippocampal neurons

et al. 2017

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“…Tl(III) also has been observed in some aquatic environments (Campanella et al, 2017;Campanella et al, 2018) but no information about its interactions with clay minerals exists. It could be usefull to assess the potential role of those minerals in Tl(III) stability in natural waters for instance.…”

Section: Discussionmentioning

confidence: 99%

Thallium (Tl) sorption onto illite and smectite: Implications for Tl mobility in the environment

Martin

Wissocq

Benedetti

et al. 2018

Geochimica et Cosmochimica Acta

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Clay minerals play a relevant role in the transport and fate of trace elements in the environment. Though illite has been referred as an important Thallium (Tl) bearing phase in soils, mechanisms and affinity of thallium for clay minerals remain poorly known. This study investigated the sorption behavior of thallium as Tl(I) onto illite and smectite, two clay minerals occurring mainly in soils and sediments. Different sorption experiments were carried out under various pH conditions and Tl concentrations, in competition with sodium and calcium at a constant ionic strength of 0.01 mol L À1. Our results showed that illite displayed more affinity than smectite for thallium. With illite, the distribution coefficients (K d in L kg À1) varied between 10 2.75 ± 0.17 and 10 4.0 ± 0.17 in Na solutions versus between 10 2.25 ± 0.17 and 10 3.0 ± 0.17 in Ca solutions, depending on pH. With smectite, K d (in L kg À1) ranged between 10 2.50 ± 0.16 and 10 3.20 ± 0.16 and between 10 1.25 ± 0.16 and 10 1.95 ± 0.16 in Na and Ca solutions, respectively. Sorption behavior was described with the Multi-Site Ion Exchanger model and selectivity coefficients with respect to protons were calculated for the first time. In all cases, independently of clay mineral and background electrolyte, low capacity but highly reactive sites were dominant in thallium uptake, highlighting Tl affinity for those sites. Moreover, the exchangeable and reversible interactions between Tl + and clays reactive sites suggested that in changing conditions, thallium could be released in solution. The role of clay minerals in thallium environmental cycle is evident and confirmed illite to be a dominant Tl bearing phase, in some environment competing with manganese oxides. Compared to others Tl bearing mineral phases, clays are ranked as follows: MnO 2 > illite > smectite $ ferrihydrite ! Al 2 O 3 $ goethite > SiO 2. Finally, over the three monovalent cations (Tl, Rb, Cs) Tl is the one less sorbed on illite independently of the background cations.

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“…Campanella et al. used a cation exchange guard‐column Dionex CG‐2 with 5 mmol/L HNO 3 −3 mmol/L NH 4 NO 3 −0.75 mmol/L DTPA as mobile phase to separate the species of Tl in river and tap water from Valdicastello mining district, and the detection limits were 0.05 μg/L for Tl(I) and Tl(III). Most of the previous studies focused on the use of one column to determine specific water samples, and there is a lack of research on HPLC‐ICP‐MS method optimization and discussion on the separation effect of cation/anion columns and the concentration of DTPA in the mobile phase.…”

Section: Introductionmentioning

confidence: 99%

“…Chu et al [19] and Chen et al [20] both used a Perkin-Elmer C8 column as the stationary phase with 1 mmol/L TBAP, 2 mmol/L DTPA in 1% v/v methanol solution (pH 6) as mobile phase, and the LOD was 0.002 μg/L for both Tl(I) and Tl(III) compounds based on peak height. Campanella et al [13] used a cation exchange guard-column Dionex CG-2 with 5 mmol/L HNO 3 −3 mmol/L NH 4 NO 3 −0.75 mmol/L DTPA as mobile phase to separate the species of Tl in river and tap water from Valdicastello mining district, and the detection limits were 0.05 μg/L for Tl(I) and Tl(III). Most of the previous studies focused on the use of one column to determine specific water samples, and there is a lack of research on HPLC-ICP-MS method optimization and discussion on the separation effect of cation/anion columns and the concentration of DTPA in the mobile phase.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous separation and determination of thallium in water samples by high‐performance liquid chromatography with inductively coupled plasma mass spectrometry

Zhao

Cheng

Men

et al. 2019

J of Separation Science

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An analytical method for separation and determination of thallium species in water using high‐performance liquid chromatography with inductively coupled plasma mass spectrometry was developed. The composition and concentration of mobile phase, injection volume, and pH value were optimized respectively with an anion or cation exchange column. The results showed that Tl(I) and Tl(III) were effectively separated using anion exchange column Hamilton PRP‐X100, with the mobile phase consisting of 200 mmol/L ammonium acetate and 10 mmol/L diethylenetriaminepentaacetic acid (pH = 4.2). When using a Dionex cation exchange guard column, CS12A, 15 mmol/L HNO3, and 3 mmol/L diethylenetriaminepentaacetic acid as the mobile phase, Tl(I) and Tl(III) could be effectively separated. The detection limits of the methods were 3–6 and 9–12 ng/L, respectively. In a solution containing Fe ions and oxalic acid, a significant quantity of Tl(I) was oxidized. Fe ions and oxalic acid in the water samples did not interfere with high‐performance liquid chromatography‐inductively coupled plasma mass spectrometry measurement results.

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Thallium release from acid mine drainages: Speciation in river and tap water from Valdicastello mining district (northwest Tuscany)

Cited by 57 publications

References 32 publications

Thallium stimulates ethanol production in immortalized hippocampal neurons

Thallium stimulates ethanol production in immortalized hippocampal neurons

Thallium (Tl) sorption onto illite and smectite: Implications for Tl mobility in the environment

Simultaneous separation and determination of thallium in water samples by high‐performance liquid chromatography with inductively coupled plasma mass spectrometry

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