In situ measurement of solution concentrations and fluxes of sulfonamides and trimethoprim antibiotics in soils using o-DGT

Chen, Chang-Er; Chen, Wei; Ying, Guang‐Guo; Jones, Kevin C.; Zhang, Hao

doi:10.1016/j.talanta.2014.08.048

Cited by 43 publications

(19 citation statements)

References 32 publications

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“…Theoretically, DGT can be applied to any inorganic or organic diffusing species, 19 although most research so far has focused on the measurement of inorganic substances, 21,22 More recently, some studies have demonstrated applications for organic substances such as antibiotics, [23][24][25] phenol and 4-chlorophenol (4-CP), 26,27 bisphenols (BPs), 28 glyphosate and aminomethyl phosphonic acid, 29 and other polar organic contaminants in WWTPs. 30 Thus, the possibility of a DGT sampler for the wide family of HPCPs-preservatives, antioxidants and disinfectants is of great interest.…”

Section: Datmentioning

confidence: 99%

DGT Passive Sampling for Quantitative in Situ Measurements of Compounds from Household and Personal Care Products in Waters

Chen

et al. 2017

Environ. Sci. Technol.

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Widespread use of organic chemicals in household and personal care products (HPCPs) and their discharge into aquatic systems means reliable, robust techniques to monitor environmental concentrations are needed. The passive sampling approach of diffusive gradients in thin-films (DGT) is developed here and demonstrated to provide in situ quantitative and time-weighted average (TWA) measurement of these chemicals in waters. The novel technique is developed for HPCPs, including preservatives, antioxidants and disinfectants, by evaluating the performance of different binding agents. Ultrasonic extraction of binding gels in acetonitrile gave good and consistent recoveries for all test chemicals. Uptake by DGT with HLB (hydrophilic-lipophilic-balanced) as the binding agent was relatively independent of pH (3.5-9.5), ionic strength (0.001-0.1 M) and dissolved organic matter (0-20 mg L), making it suitable for applications across a wide range of environments. Deployment time and diffusion layer thickness dependence experiments confirmed DGT accumulated chemicals masses are consistent with theoretical predictions. The technique was further tested and applied in the influent and effluent of a wastewater treatment plant. Results were compared with conventional grab-sampling and 24-h-composited samples from autosamplers. DGT provided TWA concentrations over up to 18 days deployment, with minimal effects from biofouling or the diffusive boundary layer. The field application demonstrated advantages of the DGT technique: it gives in situ analyte preconcentration in a simple matrix, with more quantitative measurement of the HPCP analytes.

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Section: Datmentioning

confidence: 99%

DGT Passive Sampling for Quantitative in Situ Measurements of Compounds from Household and Personal Care Products in Waters

Chen

et al. 2017

Environ. Sci. Technol.

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“…Over 700 papers have now been published using DGT, with over 300 users in more than 30 countries. Building on this track record, DGT has been developed more recently to sample a range of organic chemicals, including antibiotics (Chen et al 2015a, Chen et al 2012, Chen et al 2013, household and personal care products (Chen et al 2017), polar organic contaminants (Challis et al 2016), anionic pesticides (Guibal et al 2017), bisphenols (Zheng et al 2015), phenol and 4-chlorophenol (Dong et al 2014a, Dong et al 2014b, glyphosate and aminomethyl phosphonic acid (Fauvelle et al 2015) and illicit drugs (Guo et al 2017). This paper develops DGT for a very important new set of selected endocrine disrupting compounds.…”

Section: Introductionmentioning

confidence: 99%

Diffusive gradients in thin-films (DGT) for in situ sampling of selected endocrine disrupting chemicals (EDCs) in waters

et al. 2018

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A passive water sampler based on the diffusive gradients in thin-films (DGT) technique was developed and tested for 3 groups of endocrine disrupting chemicals (EDCs, including oestrogens, alkyl-phenols and bisphenols). Three different resins (hydrophilic-lipophilic-balanced (HLB), XAD18 and Strata-XL-A (SXLA)) were investigated for their suitability as the binding phase for DGT devices. Laboratory tests across a range of pH (3.5-9.5), ionic strength (0.001-0.5 M) and dissolved organic matter concentration (0-20 mg L) showed HLB and XAD18-DGT devices were more stable compared to SXLA-DGT. HLB-DGT and XAD18-DGT accumulated test chemicals with time consistent with theoretical predictions, while SXLA-DGT accumulated reduced amounts of chemical. DGT performance was also compared in field deployments up to 28 days, alongside conventional active sampling at a wastewater treatment plant. Uptake was linear to the samplers over 18 days, and then began to plateau/decline, indicating the maximum deployment time in those conditions. Concentrations provided by the DGT samplers compared well with those provided by auto-samplers. DGT integrated concentrations over the deployment period in a way that grab-sampling cannot. The advantages of the DGT sampler over active sampling include: low cost, ease of simultaneous multi-site deployment, in situ analyte pre-concentration and reduction of matrix interferences compared with conventional methods. Compared to other passive sampler designs, DGT uptake is independent of flow rate and therefore allows direct derivation of field concentrations from measured compound diffusion coefficients. This passive DGT sampler therefore constitutes a viable and attractive alternative to conventional grab and active water sampling for routine monitoring of selected EDCs.

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“…The binding agents used for the measurement of metals, oxyanions and nutrients have been considerably developed, while there is a tendency for the development of DGT in measurement of organic compounds. XAD-18 resin is to date, the most commonly used adsorbent for measuring antibiotics and it has been developed to simultaneously several drugs and perfluoroalkyl substances (PFASs) in water and soil (Chen et al 2014a(Chen et al , 2015aGuan et al 2018;Guo et al 2017a). Some studies have proven that XAD-18 DGT is effective in situ tools to monitor multiple antibiotics and illicit drugs in the wide range of pH 4-9, with ionic strengths of 0.001-0.1 M NaCl (Chen et al 2015b;Zhang et al 2018b).…”

Section: Single Solid Binding Agentsmentioning

confidence: 99%

“…The toxicity and potential risk of organics are of wide global concern; therefore numerous studies have applied DGT techniques to the in situ measurement of organics in various environments (Cizmas et al 2015). Chen et al (2013Chen et al ( , 2014aChen et al ( , 2015a used XAD-18 as a DGT sorbent for the in situ sampling of multiple antibiotics in water and soil, combined with the DIFS model to investigate the supply kinetics of antibiotics from soil solid phase into solution. Estrogenic activity was measured by XAD-18 DGT and conventional grab sampling, with good agreement between conventional sampling methods and DGT sampling results (Guo et al 2017b).…”

Section: Measurement Of Time-averaged Concentrationsmentioning

confidence: 99%

Diffusive gradients in thin films: devices, materials and applications

Ding

Yang

et al. 2018

Environ Chem Lett

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HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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In situ measurement of solution concentrations and fluxes of sulfonamides and trimethoprim antibiotics in soils using o-DGT

Cited by 43 publications

References 32 publications

DGT Passive Sampling for Quantitative in Situ Measurements of Compounds from Household and Personal Care Products in Waters

DGT Passive Sampling for Quantitative in Situ Measurements of Compounds from Household and Personal Care Products in Waters

Diffusive gradients in thin-films (DGT) for in situ sampling of selected endocrine disrupting chemicals (EDCs) in waters

Diffusive gradients in thin films: devices, materials and applications

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