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Thermal Desorption and Extraction Coupled With Gas Chromatography and Mass Spectrometry for the Quantification of Polystyrene Nanoplastic in Pak Choi
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This methods paper describes a thermal desorption and extraction approach coupled with gas chromatography-mass spectrometry for detecting plastic-associated chemicals including plasticizers and flame retardants in environmental samples with high sensitivity.
This study was the first to use a TED-GC/MS method for the detection of PS nanoplastics of different sizes in pak choi and thus provides an important basis for the determination and risk assessment of PS in vegetables.
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Thermal Desorption and Extraction Coupled With Gas Chromatography and Mass Spectrometry for the Quantification of Polystyrene Nanoplastic in Pak Choi
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A TED-GC/MS method was developed to detect and quantify polystyrene nanoplastics in pak choi vegetables, with limits of detection at 0.09 micrograms and quantification at 0.28 micrograms. Plants treated with 100 nm particles contained 19 micrograms per gram dry mass of PS and plants treated with 500 nm particles contained 64 micrograms per gram, providing the first TED-GC/MS nanoplastic measurements in leafy vegetables.
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