Application of hydride generation - microwave plasma - atomic emission spectrometry and partial least squares regression for the determination of antimony directly in water and in PET after alkaline methanolysis

Magaña-Maldonado, Luis Mario; Wróbel, Katarzyna; Cruz, T.; Barrientos, Eunice Yáñez; Escobosa, Alma Rosa Corrales; Wróbel, Kazimierz

doi:10.1016/j.chemosphere.2022.137316

Cited by 2 publications

(1 citation statement)

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“…One by Magana-Maldonado et al used an alkaline methanolysis of PET samples and then determined the Sb extracted using hydride generation introduction to a microwave plasma-optical emission spectroscopy instrument . 114 The extraction process was discussed in detail and involved adding methanol, 5% potassium hydroxide, 0.5% sodium methoxide and a small amount of calcium carbide to approximately 10 mg of PET. This was then heated at 60 °C for 24 hours, cooled, 500 μL of water added, mixed, 200 μL of 8 M HCl added, centrifuged, the supernatant washed with 3 × 1 mL of 1 M hydrochloric acid, the washings combined and diluted to 25 mL using 1 M hydrochloric acid containing 10% methanol.…”

Section: Organic Chemicals and Materialsmentioning

confidence: 99%

Atomic spectrometry update: review of advances in the analysis of metals, chemicals and materials

Clough,

Fisher,

Gibson

et al. 2023

J. Anal. At. Spectrom.

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Section: Organic Chemicals and Materialsmentioning

confidence: 99%

Atomic spectrometry update: review of advances in the analysis of metals, chemicals and materials

Clough,

Fisher,

Gibson

et al. 2023

J. Anal. At. Spectrom.

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Antimony in Polyethylene Terephthalate-Bottled Beverages: The Migration Puzzle

Carneado,

López-Sánchez,

Sahuquillo

2023

Molecules

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A novel strategy to assess the main variables that potentially affect the migration of antimony from PET bottles to beverages, including mineral waters and juices, is herein proposed. In a preliminary step, an LC-ICP-MS method previously used for water analysis was optimized to correct identify Sb species present in the studied matrices using HRMS. Subsequently, the influence of temperature and storage time up to 30 days on Sb migration from PET bottles into peach and pineapple juices of the same brand was studied. Storing PET bottled drinks at elevated temperatures (i.e., in a hot car or in summer) can cause antimony migration to exceed the limits allowed in the EU or USA. Because the behavior observed differed from the results reported for Sb migration in mineral waters, a second approach was proposed: three mineral water and two juice samples were kept in different PET containers and stored at an elevated temperature (up to 60 °C) to understand the role of the PET type and matrix simultaneously. This study demonstrated that both matrix characteristics and type of PET bottle greatly influence antimony leaching, highlighting the need to consider these variables together when conducting migration experiments. The obtained results can be helpful for developing future legislation concerning migration of pollutants from packing to food commodities.

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Application of hydride generation - microwave plasma - atomic emission spectrometry and partial least squares regression for the determination of antimony directly in water and in PET after alkaline methanolysis

Cited by 2 publications

References 45 publications

Atomic spectrometry update: review of advances in the analysis of metals, chemicals and materials

Atomic spectrometry update: review of advances in the analysis of metals, chemicals and materials

Antimony in Polyethylene Terephthalate-Bottled Beverages: The Migration Puzzle

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