Platinum and rhodium in wine samples by using voltammetric techniques

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Abstract

For the first time, the concentrations of Pt and Rh in 42 different alcoholic beverages (white and red wines, 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− 1and from 0.0006 to 0.36 μg L− 1respectively. 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)229-235
Numero di pagine7
RivistaMicrochemical Journal
Volume130
Stato di pubblicazionePublished - 2017

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Rhodium
Wine
Platinum
Voltammetry
Catalytic converters
Dust
Metals
Recovery

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Spectroscopy

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title = "Platinum and rhodium in wine samples by using voltammetric techniques",
abstract = "For the first time, the concentrations of Pt and Rh in 42 different alcoholic beverages (white and red wines, 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{\^A} {\^I}¼g{\^A} L{\^a}ˆ’{\^A} 1and from 0.0006 to 0.36{\^A} {\^I}¼g{\^A} L{\^a}ˆ’{\^A} 1respectively. 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{\^A} mL/day of wine, this supply from 0.6 to 94{\^A} {\^I}¼g and from 0.00012 to 0.072{\^A} {\^I}¼g of platinum and rhodium for person respectively.",
keywords = "Pt; Rh; Voltammetry; Wine; Analytical Chemistry; Spectroscopy",
author = "Santino Orecchio and Diana Amorello and Salvatore Barreca and Salvatore Barreca",
year = "2017",
language = "English",
volume = "130",
pages = "229--235",
journal = "Microchemical Journal",
issn = "0026-265X",
publisher = "Elsevier Inc.",

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TY - JOUR

T1 - Platinum and rhodium in wine samples by using voltammetric techniques

AU - Orecchio, Santino

AU - Amorello, Diana

AU - Barreca, Salvatore

AU - Barreca, Salvatore

PY - 2017

Y1 - 2017

N2 - For the first time, the concentrations of Pt and Rh in 42 different alcoholic beverages (white and red wines, 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− 1and from 0.0006 to 0.36 μg L− 1respectively. 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 red wines, 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− 1and from 0.0006 to 0.36 μg L− 1respectively. 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.

KW - Pt; Rh; Voltammetry; Wine; Analytical Chemistry; Spectroscopy

UR - http://hdl.handle.net/10447/280985

UR - http://www.elsevier.com/inca/publications/store/6/2/0/3/9/1

M3 - Article

VL - 130

SP - 229

EP - 235

JO - Microchemical Journal

JF - Microchemical Journal

SN - 0026-265X

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