Diffusive gradients in thin films: devices, materials and applications

C Li, S Ding, L Yang, Y Wang, M Ren, M Chen… - Environmental chemistry …, 2019 - Springer
A large number of ex situ sampling techniques have been used traditionally to investigate
the impact and fate of pollutants in soil, sediment and waters. However, the distribution and …

Developments in the diffusive gradients in thin-films technique for the speciation of oxyanions and platinum group elements in aquatic systems

Y Gao, C Zhou, J Galceran, C Rey-Castro, J Puy… - TrAC Trends in …, 2022 - Elsevier
Abstract Diffusive Gradients in Thin-films (DGT) is an in situ passive sampler with a
widespread use in environmental studies. Within the ample range of analytes that can be …

A new DGT technique comprised in a hybrid sensor for the simultaneous measurement of ammonium, nitrate, phosphorus and dissolved oxygen

M Ren, S Ding, D Shi, Z Zhong, J Cao, L Yang… - Science of the total …, 2020 - Elsevier
A new diffusive gradients in thin films technique (ZrO-AT DGT) with zirconium oxide, A-62
MP and T-42H resins containing in a single binding gel was developed for simultaneous …

Non-Steady-State Fickian Diffusion Models Decrease the Estimated Gel Layer Diffusion Coefficient Uncertainty for Diffusive Gradients in Thin-Films Passive Samplers

SD Hodges, DG Wahman, LM Haupert… - Environmental …, 2023 - ACS Publications
Mass transport in diffusive gradients in thin-film passive samplers is restricted to diffusion
through a gel layer of agarose or agarose cross-linked polyacrylamide (APA). The gel layer …

In situ biochar capping is feasible to control ammonia nitrogen release from sediments evaluated by DGT

Y Zhu, B Shan, J Huang, PR Teasdale… - Chemical Engineering …, 2019 - Elsevier
Abstract Evaluation of in situ capping with biochar (BC) to control ammonia nitrogen (NH 4+-
N) release from the sediments of Baiyangdian Lake, the largest freshwater lake in northern …

New holder configurations for use in the diffusive gradients in thin films (DGT) technique

S Ding, Y Wang, L Zhang, L Xu, M Gong, C Zhang - RSC advances, 2016 - pubs.rsc.org
This study reports two new holder configurations that can be used in the diffusive gradients
in thin films (DGT) technique, including a dual-mode holder and a new flat-type holder. The …

[HTML][HTML] In-situ sampling of nitrophenols in industrial wastewaters using diffusive gradients in thin films based on lignocellulose-derived activated carbons

N You, JY Li, HT Fan, H Shen - Journal of Advanced Research, 2019 - Elsevier
Nitrophenols (such as o-nitrophenol (ONP), p-nitrophenol (PNP), and 2, 4-dinitrophenol
(DNP)) are priority environmental pollutants. Their toxicity is pH dependent, and these …

[HTML][HTML] In situ measurement of estrogenic activity in various aquatic systems using organic diffusive gradients in thin-film coupled with ERE-CALUX bioassay

W Guo, K Van Langenhove, T Vandermarken… - Environment …, 2019 - Elsevier
Organic-diffusive gradients in thin-film samplers (o-DGT), were developed and applied for
accumulation of estrogen and estrogen-like compounds on a XAD18 resin and deployed in …

Estrogenic activity measurements in water using diffusive gradients in thin-film coupled with an estrogen bioassay

W Guo, K Van Langenhove, MS Denison… - Analytical …, 2017 - ACS Publications
A novel type of diffusive gradients in thin-film (DGT) was combined with a chemically
activated luciferase gene expression bioassay (CALUX) to measure estrogens in aquatic …

A cyclodextrin polymer membrane-based passive sampler for measuring triclocarban, triclosan and methyl triclosan in rivers

M Wei, X Yang, P Watson, F Yang, H Liu - Science of the total environment, 2019 - Elsevier
In recent years, extensive attention has been paid to the passive sampling technology of
diffusive gradients in thin films (DGT) due to its growing application in the measurement of a …