Platinum and rhodium in wine samples by using voltammetric techniques

Gulli, E.

Risultato della ricerca: Article

1 Citazione (Scopus)

Abstract

For the first time, the concentrations of Pt and Rh in 42 different alcoholic beverages (white and redwines, vodka and brandy) produced in Italy, Malta and Gozo were investigated. Only the voltammetric techniques, in particular, differential Pulse Voltammetry (DPV/a) and Adsorptive Stripping Voltammetry (AdSV)were used for the determination of Pt and Rh respectively. Accuracy was tested with standard addition method and recoveries ranged from 90% to 98%. In analyzed wine samples, Pt and Rh concentrations are in the ranges from 3 to 470 μg L−1 and from 0.0006 to 0.36 μg L−1 respectively. We found a Pt/Rh ratios ranged from 37 to 180,000, in quite disagreement with the ratio in catalytic converters. Unlike other investigated matrices (settled dust matter), the concentrations of Pt and Rh are not correlated, suggesting that the grape or the plant (vitis vinifera) treats the two metals very differently. Daily intakes (DIM) of Pt and Rh were calculated. Consuming 200 mL/day of wine, this supply from 0.6 to 94 μg and from 0.00012 to 0.072 μg of platinum and rhodium for person respectively.
Lingua originaleEnglish
pagine (da-a)-
Numero di pagine7
RivistaMicrochemical Journal
Stato di pubblicazionePublished - 2016

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Platinum and rhodium in wine samples by using voltammetric techniques. / Gulli, E.

In: Microchemical Journal, 2016, pag. -.

Risultato della ricerca: Article

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abstract = "For the first time, the concentrations of Pt and Rh in 42 different alcoholic beverages (white and redwines, vodka and brandy) produced in Italy, Malta and Gozo were investigated. Only the voltammetric techniques, in particular, differential Pulse Voltammetry (DPV/a) and Adsorptive Stripping Voltammetry (AdSV)were used for the determination of Pt and Rh respectively. Accuracy was tested with standard addition method and recoveries ranged from 90{\%} to 98{\%}. In analyzed wine samples, Pt and Rh concentrations are in the ranges from 3 to 470 μg L−1 and from 0.0006 to 0.36 μg L−1 respectively. We found a Pt/Rh ratios ranged from 37 to 180,000, in quite disagreement with the ratio in catalytic converters. Unlike other investigated matrices (settled dust matter), the concentrations of Pt and Rh are not correlated, suggesting that the grape or the plant (vitis vinifera) treats the two metals very differently. Daily intakes (DIM) of Pt and Rh were calculated. Consuming 200 mL/day of wine, this supply from 0.6 to 94 μg and from 0.00012 to 0.072 μg of platinum and rhodium for person respectively.",
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T1 - Platinum and rhodium in wine samples by using voltammetric techniques

AU - Gulli, E.

AU - Orecchio, Santino

AU - Amorello, Diana

AU - Barreca, Salvatore

PY - 2016

Y1 - 2016

N2 - For the first time, the concentrations of Pt and Rh in 42 different alcoholic beverages (white and redwines, vodka and brandy) produced in Italy, Malta and Gozo were investigated. Only the voltammetric techniques, in particular, differential Pulse Voltammetry (DPV/a) and Adsorptive Stripping Voltammetry (AdSV)were used for the determination of Pt and Rh respectively. Accuracy was tested with standard addition method and recoveries ranged from 90% to 98%. In analyzed wine samples, Pt and Rh concentrations are in the ranges from 3 to 470 μg L−1 and from 0.0006 to 0.36 μg L−1 respectively. We found a Pt/Rh ratios ranged from 37 to 180,000, in quite disagreement with the ratio in catalytic converters. Unlike other investigated matrices (settled dust matter), the concentrations of Pt and Rh are not correlated, suggesting that the grape or the plant (vitis vinifera) treats the two metals very differently. Daily intakes (DIM) of Pt and Rh were calculated. Consuming 200 mL/day of wine, this supply from 0.6 to 94 μg and from 0.00012 to 0.072 μg of platinum and rhodium for person respectively.

AB - For the first time, the concentrations of Pt and Rh in 42 different alcoholic beverages (white and redwines, vodka and brandy) produced in Italy, Malta and Gozo were investigated. Only the voltammetric techniques, in particular, differential Pulse Voltammetry (DPV/a) and Adsorptive Stripping Voltammetry (AdSV)were used for the determination of Pt and Rh respectively. Accuracy was tested with standard addition method and recoveries ranged from 90% to 98%. In analyzed wine samples, Pt and Rh concentrations are in the ranges from 3 to 470 μg L−1 and from 0.0006 to 0.36 μg L−1 respectively. We found a Pt/Rh ratios ranged from 37 to 180,000, in quite disagreement with the ratio in catalytic converters. Unlike other investigated matrices (settled dust matter), the concentrations of Pt and Rh are not correlated, suggesting that the grape or the plant (vitis vinifera) treats the two metals very differently. Daily intakes (DIM) of Pt and Rh were calculated. Consuming 200 mL/day of wine, this supply from 0.6 to 94 μg and from 0.00012 to 0.072 μg of platinum and rhodium for person respectively.

UR - http://hdl.handle.net/10447/356655

M3 - Article

SP - -

JO - Microchemical Journal

JF - Microchemical Journal

SN - 0026-265X

ER -