Rotating-disk sorptive extraction coupled to gas chromatography mass spectrometry for the determination of phthalates in bottled water

Manzo, Valentina; Becerra-Herrera, Mercedes; Arismendi, Daniel; Molina-Balmaceda, Alejandra; Caraballo, Manuel A.; Richter, Pablo

doi:10.1039/c9ay02076d

Cited by 15 publications

(1 citation statement)

References 44 publications

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“…The use of adequate surrogates or instrumental internal standards that guarantee the reliability of the obtained data should be considered. In this sense, the use of isotopically deuterated compounds is preferred since the application of other PAEs, which although are not included into the target selected compounds, have been demonstrated to be in the evaluated samples [ 59 – 61 ] as occur in the works of Ortega-Zamora et al [ 50 ] and Mogaddam et al [ 56 ], which could pose serious doubts on the reliability of the obtained results. This practice is especially questionable when, in addition, the selected surrogates are also classified as toxic substances and priority pollutants with prevalence in the environment [ 3 , 5 – 7 ].…”

Section: Resultsmentioning

confidence: 99%

Quality assessment of environmental water by a simple and fast non-ionic hydrophobic natural deep eutectic solvent-based extraction procedure combined with liquid chromatography tandem mass spectrometry for the determination of plastic migrants

2021

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Graphical abstract A non-ionic hydrophobic natural deep eutectic solvent (HNADES) based on thymol and menthol was proposed for the liquid-liquid microextraction of fourteen phthalates and one adipate from environmental water samples. Separation, identification, and quantification were achieved by ultra-high-performance liquid chromatography coupled to tandem mass spectrometry. The main factors affecting the extraction efficiency were thoroughly studied. Sample pH of 8 and 100 μL of thymol:menthol at molar ratio 2:1 were selected as the best conditions, while ionic strength and type of dispersant solvent were not relevant for the extraction of the target compounds. The whole methodology was validated for treated wastewater, runoff, and pond water matrices, using di- n -butyl phthalate-3,4,5,6-d 4 and dihexyl phthalate-3,4,5,6-d 4 as surrogates. Recovery ranged from 70 to 127% with relative standard deviation values lower than 14%. Limits of quantification of the method were in the range 0.042–0.425 μg/L for treated wastewater, 0.015–0.386 μg/L for runoff, and 0.013–0.376 μg/L for pond water. The methodology was applied for the analysis of real treated wastewater, runoff, and pond water samples from different places of Tenerife and Gran Canaria (Canary Islands) finding the presence of diethyl phthalate, diallyl phthalate, dipropyl phthalate, benzylbutyl phthalate, di-n-butyl phthalate, bis-(2- n -butoxyethyl) phthalate, di-n-pentyl phthalate, dicyclohexyl phthalate, and bis-(2-ethylhexyl) phthalate at concentrations between 105.2 and 3414 ng/L. Supplementary Information The online version contains supplementary material available at 10.1007/s00216-021-03166-1.

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Section: Resultsmentioning

confidence: 99%