In situ sampling of tetracycline antibiotics in culture wastewater using diffusive gradients in thin films equipped with graphene nanoplatelets

Development and applications of diffusive gradients in thin films for monitoring pharmaceuticals in surface waters

“…DGT has been applied to the measurement of a broad range of organic pollutants, including pesticides ( Guibal et al, 2017 ), pharmaceuticals ( Challis et al, 2018 ; Chen et al, 2012 ; Chen et al, 2013 ; Xie et al, 2018 ; Xie et al, 2021 ; You et al, 2020 ; You et al, 2019 ), household and personal care products ( Chen et al, 2017 ), synthetic musks ( Ren et al, 2020 ), perfluoroalkyl substances ( Fang et al, 2021 ; Guan et al, 2018 ), endocrine-disrupting chemicals ( Chen et al, 2018 ; Guo et al, 2017b ; Guo et al, 2019 ), illicit drugs ( Guo et al, 2017a ; Zhang et al, 2018 ), organophosphate esters ( Wang et al, 2019 ), brominated flame retardants ( Feng et al, 2019 ), bisphenols ( Zheng et al, 2015 ), bitter agent ( Liu et al, 2021a ), and melamine ( Liu et al, 2021b ). Although these pioneering studies extended the use of DGT to monitor organic chemicals, model contaminants have remained limited.…”

Diffusive Gradients in Thin-films technique for uranium monitoring along a salinity gradient: A comparative study on the performance of Chelex-100, Dow-PIWBA, Diphonix, and Lewatit FO 36 resin gels in the Scheldt estuary

“…The analyte mass accumulated on the binding gel is then eluted and analysed by instrumental technique [9, 5 10]. In addition to the original purpose of the DGT technique as a tool for measuring trace metals in the aquatic environment [6,[10][11][12], it is also used for the determination of nutrients [13][14][15][16], radioactive elements [17][18][19][20][21][22], platinum group elements [23][24][25], rare-earth elements [26,27], and various organic compounds (such as phenolic compounds [28], antibiotics [29],…”

“…For this reason, four resins (Chelex-100, Dow-PIWBA, Diphonix, and Lewatit FO 36) for uranium determination were selected and their abilities evaluated along the salinity gradient to investigate the influence of the changing U speciation on the DGT performance. The study area of the Scheldt estuary (Belgium and the Netherlands) is characterized by salinity ranging from freshwater (<0.05), oligohaline (0.05-5), mesohaline (5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18) to polyhaline (18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30) waters [48].…”

Effective removal of tetracycline antibiotics from wastewater using practically applicable iron(III)-loaded cellulose nanofibres

“…Adsorption performance is closely related to adsorbents types [27]. Many adsorbents, such as agricultural waste, activated carbon, nanomaterials, layered double hydroxides, covalent organic frameworks-based materials, nanocomposites of reduced graphene oxide with ZrO 2 , the hybrid nanocomposites of zero-valent iron-loaded activated carbon, α-iron oxide/reduced graphene oxide, the graphene nanoplatelet-based and the nanosized ZnO-based [10,[28][29][30][31][32][33], are used to adsorb TCs. Compared with other types of adsorbents, adsorbents fabricated using agricultural waste overcome high costs and are easy to obtain [10].…”