Platinum and rhodium associated with the leaves of Nerium oleander L.; analytical method using voltammetry; assessment of air quality in the Palermo (Italy) area

Orecchio, Santino; Amorello, Diana

doi:10.1016/j.jhazmat.2009.09.110

Cited by 47 publications

(35 citation statements)

References 50 publications

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“…Palermo is a densely populated city (about 850,000 inhabitants) characterized by conspicuous air pollution [3,[23][24][25][26][27][28][29]. Palermo is a typically European town in building style and is generally built in stone (tuff), clay bricks and concrete.…”

Section: Study Areamentioning

confidence: 99%

Photodegradation of selected phthalates on mural painting surfaces under UV light irradiation

Barreca

Indelicato

Orecchio

et al. 2014

Microchemical Journal

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The esters of phthalic acid are considered as hazardous pollutants due to their mutagenicity, carcinogenicity and are also classified as endocrine disruptor chemicals. Several compounds of this class of substances for decades, and probably even now, were used as softeners in water-based synthetic paintings. Surfaces and structures, such as house walls painted with phthalates based paintings, can be a concern to construction workers engaged in demolition, restore and paint removal activities if they are not protected from hazardous dust inhalation. In this paper we report the results of an investigation about phthalate ester degradation by direct UV irradiation at 254 nm. The results of kinetic parameters for PAE photodegradation are reported and it shows that k values for the single PAEs ranged from 0.221 to 0.737 h −1 . Moreover, the results indicate that photolysis is a successful way to remediate PEAs contaminated on mural painting.

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Section: Study Areamentioning

confidence: 99%

Photodegradation of selected phthalates on mural painting surfaces under UV light irradiation

Barreca

Indelicato

Orecchio

et al. 2014

Microchemical Journal

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“…Palermo is a densely populated city (about 850,000 inhabitants). It is characterized by conspicuous air pollution [1,[32][33][34][35][36][37]. The town is situated on the north-western coast of the island along the wide bay Piana di Palermo and is overlooked by Mt.…”

Section: Study Areamentioning

confidence: 99%

Determination of selected phthalates by gas chromatography–mass spectrometry in mural paintings from Palermo (Italy)

Orecchio

Indelicato

Barreca

2014

Microchemical Journal

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Phthalate esters for decades, and probably even now, were used as softeners in water-based paintings. In general, these compounds are dangerous owing to their carcinogenicity and reproductive effects. Phthalates are not chemically but only physically bound to the matrices, hence, they may be leached into the environment and are ubiquitously found in environmental matrices. Considering that, construction is one of most important fields in Europe, and probably worldwide, with respect to its economic, technological and environmental impact. In the present work the phthalate esters content of several mural paintings was evaluated by gas chromatographymass spectrometry (GC-MS). Because, this issue is especially important to ensure proper security measurements during processes that could involve particulate inhalation, the total concentrations of 15 compounds in the analyzed mural paintings, ranged from 0.8 to 236 mg/Kg d.w. with an average of 39.4 mg/Kg d.w. The highest concentration was found in a mural painting sampled in an apartment built about 50 years ago, though, building age was not significantly correlated with the levels of total and single PAEs. Among the monitored phthalates, only four (bis(2-ethylhexyl) phthalate, diisobutyl phthalate, Di-n-butyl phthalate and diethyl phthalate) were detected in appreciable quantities. Benzyl butyl phthalate was relevant only for one sample and, at trace levels, only for two samples. In all tested mural paintings, except two samples, predominates the bis(2-ethylhexyl) phthalate (DEHP) (from 30 to 100% of total). In general, occasionally, dinonyl phthalate (DNP) was used as an alternative to DEHP, however, in our case, its occurrence was not found. Diisobutyl phthalate (DiBP) was detected in seven samples and ranged from 0.17 to 13.2 mg/Kg d.w.

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“…The samples were then transferred into a ziplock bag and stored in the fridge at 4°C until analysis. The working environment was also kept clean to avoid any cross-contamination [27].…”

Section: Sample Collectionmentioning

confidence: 99%

“…Since the certificate samples are not available, the analytical procedure was checked for accuracy by analysing enriched samples prepared by us. For metal contents lower than the detection limits a known quantity of Pd, Pt and Rh standards to samples of soil and dust was spiked [27]. The relative standard deviations on the metals measurements of recovery were found to be less than 15%.…”

Section: Quality Assurancementioning

confidence: 99%

Graphene Oxide–Antimony Nanocomposite Sensor for Analysis of Platinum Group Metals in Roadside Soil Samples

Silwana¹,

Horst²,

Iwuoha³

et al. 2017

Graphene Materials - Advanced Applications

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The present study introduced a very sensitive and low-cost analytical procedure based on voltammetry to study platinum group metals in road dust and roadside soil matrices. Cathodic stripping voltammetry in conjunction with a reduced graphene oxide-antimony nanocomposite sensor and ICP-MS analysis were used to analyse roadside soil and dust samples. The results were processed to evaluate possible pollution in order to map the distribution of the PGMs along specific roads in the Stellenbosch area, outside Cape Town. The results revealed that within each site under investigation, Pd was more abundant than Pt and Rh using both voltammetric and spectroscopic methods. The AdDPCSV results obtained showed concentrations for Pd(II) ranging between 0.92 -4.0 ng kg -1 . For Pt (II), the concentrations ranged between 0.84 -0.99 ng kg . For Rh, concentrations ranged between 0.002 -0.26 µg kg -1 . The analysis showed significant levels of all PGMs in soil and dust samples analysed. Metal concentration in dust and soil followed the trend Pd > Pt > Rh using both voltammetric and spectroscopic techniques.

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Platinum and rhodium associated with the leaves of Nerium oleander L.; analytical method using voltammetry; assessment of air quality in the Palermo (Italy) area

Cited by 47 publications

References 50 publications

Photodegradation of selected phthalates on mural painting surfaces under UV light irradiation

Photodegradation of selected phthalates on mural painting surfaces under UV light irradiation

Determination of selected phthalates by gas chromatography–mass spectrometry in mural paintings from Palermo (Italy)

Graphene Oxide–Antimony Nanocomposite Sensor for Analysis of Platinum Group Metals in Roadside Soil Samples

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