Suspect and nontarget screening of known and unknown organophosphate esters (OPEs) in soil samples

Gong, Shuai; Ren, Kefan; Ye, Langjie; Deng, Yangbo; Su, Guanyong

doi:10.1016/j.jhazmat.2022.129273

Cited by 39 publications

(17 citation statements)

References 73 publications

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“…Based on previous studies, a combination of suspect screening and nontarget screening was adopted for the comprehensive identification of OPEs in FCMs. ,− …”

Section: Methodsmentioning

confidence: 99%

“…Traditionally, target analysis has been performed to study OPEs in environmental monitoring, with a focus on a small set of known OPEs. Recently, nontarget analysis using high-resolution mass spectrometry (HRMS) has led to the discovery of numerous novel OPEs in house dust, soil, sediment, and wild fish. ,− It is therefore of interest to investigate whether novel OPEs also occur in FCMs. Furthermore, as organophosphite antioxidants (OPAs)which are commonly added to polymeric materials (including FCMs) to retard agingcan be naturally oxidized to OPEs, − the occurrence of OPAs in FCMs must also be explored.…”

Section: Introductionmentioning

confidence: 99%

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Discovery of 18 Organophosphate Esters and 3 Organophosphite Antioxidants in Food Contact Materials Using Suspect and Nontarget Screening: Implications for Human Exposure

Wang

Xiao

Yuan

et al. 2022

Environ. Sci. Technol.

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In this study of extracts of 100 food contact material (FCM) samples collected from South China, we identified 21 organophosphate esters (OPEs) by suspect screening and seven novel OPEs by characteristic fragments-based nontarget screening. Six organophosphite antioxidants (OPAs) were further identified using a suspect list derived from these identified OPEs. Of these compounds, 18 OPEs and 3 OPAs were found for the first time in the extracts of FCMs. (Semi-)quantification revealed that seven of the OPEs [triphenyl phosphate, tris(2,4-di-tert-butylphenyl) phosphate (TDtBPP), bis(2,4-di-tert-butylphenyl) methyl phosphate, (2,4-di-tert-butylphenyl)pentaerythritol phosphate, triethyl phosphate, 2-ethylhexyl-diphenyl phosphate, and trimethyl phosphate] and two of the OPAs [tris(2,4-di-tert-butylphenyl) phosphite (TDtBPPi) and pentabutylated triphenyl phosphite] were present in more than 50 FCM samples and that TDtBPP and TDtBPPi were the dominant OPE and OPA in FCMs, respectively [with median concentrations of 7260 ng/g (range: <8.50–103,879 ng/g) and 31,920 ng/g (range: <9.80–657,399 ng/g), respectively]. A migration test revealed that the migration efficiencies of compounds from a plastic coffee cup to food simulants in the cup increased as the ethanol/water ratio in the food simulants increased. This study significantly enhanced our understanding on the diversity and occurrences of OPEs and OPAs in FCMs used in China and their FCM-to-food migration risk.

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“…Based on previous studies, a combination of suspect screening and nontarget screening was adopted for the comprehensive identification of OPEs in FCMs. ,− …”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Discovery of 18 Organophosphate Esters and 3 Organophosphite Antioxidants in Food Contact Materials Using Suspect and Nontarget Screening: Implications for Human Exposure

Wang

Xiao

Yuan

et al. 2022

Environ. Sci. Technol.

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“…The adsorption capacity of these materials was low due to the P–O bond in OPEs [ 82 ]. Therefore, Wang et al [ 72 ] chose widely used resin materials and studied for the first time the adsorption kinetics and isotherms of XAD4 hydrophobic and XAD7hP hydrophilic resin on five typical OPEs and the influence of pH, common influencing factors of water, adsorption mechanisms, recyclability, reuse, etc.…”

Section: Adsorption Methodsmentioning

confidence: 99%

Organophosphate Esters (OPEs) Flame Retardants in Water: A Review of Photocatalysis, Adsorption, and Biological Degradation

et al. 2023

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As a substitute for banned brominated flame retardants (BFRs), the use of organophosphate esters (OPEs) increased year by year with the increase in industrial production and living demand. It was inevitable that OPEs would be discharged into wastewater in excess, which posed a great threat to the health of human beings and aquatic organisms. In the past few decades, people used various methods to remove refractory OPEs. This paper reviewed the photocatalysis method, the adsorption method with wide applicability, and the biological method mainly relying on enzymolysis and hydrolysis to degrade OPEs in water. All three of these methods had the advantages of high removal efficiency and environmental protection for various organic pollutants. The degradation efficiency of OPEs, degradation mechanisms, and conversion products of OPEs by three methods were discussed and summarized. Finally, the development prospects and challenges of OPEs’ degradation technology were discussed.

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“…The high-resolution mass spectrometry method using data-independent acquisition (HRMS-DIA) has been applied in nontarget analysis to discover numerous chemicals in the environment. − Different from the data-dependent acquisition (DDA) mode in which only compounds with high abundance can be selected for fragmentation, all of the precursor ions in the predefined isolation windows can be fragmented with no pre-selection in the DIA mode, so that MS 2 spectra for all precursor ions are generated . DIA analysis enables acquisition of comprehensive spectra which can immensely improve the capability of detecting and identifying more compounds that are in low abundance.…”

Section: Introductionmentioning

confidence: 99%

Discovery of Three Organothiophosphate Esters in River Water Using High-Resolution Mass Spectrometry

Chen

Wang

et al. 2023

Environ. Sci. Technol.

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Records of the environmental occurrence of organothiophosphate esters (OTPEs), which are used as flame retardants and food and industrial additives, are unavailable. In this study, we discovered three OTPEs, namely O,O,O-tris(2,4-di-tert-butylphenyl) phosphorothioate (AO168S), O-butyl O-(butyl-methylphenyl) O-(di-butylphenyl) phosphorothioate (BBMDBPt)/O,O-bis(dibutylphenyl) O-methyl phosphorothioate (BDBPMPt), and O-butyl O-ethyl O-hydrogen phosphorothioate (BEHPt), in the surface water of the Yangtze River Basin by applying a characteristic phosphorothioate fragment-directed high-resolution mass spectrometry method. Among the 17 water samples tested, the detection frequencies of AO168S and BEHPt were 100% and that of BBMDBPt/BDBPMPt was 29%. The mean concentration of AO168S was 56.9 ng/L (30.5–148 ng/L), and semi-quantitative analysis revealed that the mean concentrations of BEHPt and BBMDBPt/BDBPMPt were 17.2 ng/L (5.5–65.4 ng/L) and 0.8 ng/L (

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Suspect and nontarget screening of known and unknown organophosphate esters (OPEs) in soil samples

Cited by 39 publications

References 73 publications

Discovery of 18 Organophosphate Esters and 3 Organophosphite Antioxidants in Food Contact Materials Using Suspect and Nontarget Screening: Implications for Human Exposure

Discovery of 18 Organophosphate Esters and 3 Organophosphite Antioxidants in Food Contact Materials Using Suspect and Nontarget Screening: Implications for Human Exposure

Organophosphate Esters (OPEs) Flame Retardants in Water: A Review of Photocatalysis, Adsorption, and Biological Degradation

Discovery of Three Organothiophosphate Esters in River Water Using High-Resolution Mass Spectrometry

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