Measurement of Dissolved Reactive Phosphorus in Water with Polyquaternary Ammonium Salt as a Binding Agent in Diffusive Gradients in Thin-Films Technique

2014 ◽  
Vol 62 (50) ◽  
pp. 12112-12117 ◽  
Author(s):  
Hong Chen ◽  
Meng-Han Zhang ◽  
Jia-Li Gu ◽  
Gang Zhao ◽  
Yu Zhang ◽  
...  
Keyword(s):  
Thin Films ◽  
Ammonium Salt ◽  
Binding Agent ◽  
Dissolved Reactive Phosphorus ◽  
Reactive Phosphorus ◽  
Diffusive Gradients

Determination of Mo(vi) in water with poly(quaternary ammonium salt) as a binding phase of diffusive gradients in thin-films

2015 ◽  
Vol 7 (24) ◽  
pp. 10251-10255 ◽  
Author(s):  
Hong Chen ◽  
Menghan Zhang ◽  
Han Zhang ◽  
Yu Zhang ◽  
Xu Liu ◽  
...  
Keyword(s):  
Thin Films ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Binding Agent ◽  
Binding Phase ◽  
Diffusive Gradients

A DGT device with poly(quaternary ammonium salt) as a binding agent was developed for the sampling and measurement of Mo(vi) in waters.

scholarly journals A new method based on diffusive gradients in thin films for in situ monitoring microcystin-LR in waters

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Lei Yao ◽  
Alan D. Steinman ◽  
Xiang Wan ◽  
Xiubo Shu ◽  
Liqiang Xie
Keyword(s):  
Thin Films ◽  
Passive Sampling ◽  
Sampling Method ◽  
Binding Capacity ◽  
Accurate Method ◽  
In Situ Monitoring ◽  
Active Sampling ◽  
Binding Agent ◽  
Diffusive Gradients

AbstractThe passive sampling method of diffusive gradients in thin-films (DGT) was developed to provide a quantitative and time-integrated measurement of microcystin-LR (MC-LR) in waters. The DGT method in this study used HLB (hydrophilic-lipophilic-balanced) material as a binding agent, and methanol as an eluent. The diffusion coefficient of MC-LR was 5.01 × 10−6 cm2 s−1 at 25 °C in 0.45 mm thick diffusion layer. This DGT method had a binding capacity of 4.24 μg per binding gel disk (3.14 cm2), ensuring sufficient capacity to measure MC-LR in most water matrices. The detection limit of HLB DGT was 0.48 ng L−1. DGT coupled to analysis by HPLC appears to be an accurate method for MC-LR monitoring. Comparison of DGT measurements for MC-LR in water and a conventional active sampling method showed little difference. This study demonstrates that HLB-based DGT is a useful tool for in situ monitoring of MC-LR in fresh waters.

scholarly journals Residual biomass of coffee as a binding agent in diffusive gradients in thin-films technique for Cd, Cu, Ni, Pb and Zn measurement in waters

Talanta ◽  
2019 ◽  
Vol 205 ◽  
pp. 120148 ◽  
Author(s):  
Lauren N.M. Yabuki ◽  
Amauri A. Menegário ◽  
Hendryk Gemeiner ◽  
Ana Marta C.M. Rolisola ◽  
Didier Gastmans ◽  
...  
Keyword(s):  
Thin Films ◽  
Binding Agent ◽  
Residual Biomass ◽  
Diffusive Gradients

A novel Mg(OH)2 binding layer-based DGT technique for measuring phosphorus in water and sediment

2020 ◽  
Vol 22 (2) ◽  
pp. 340-349
Author(s):  
Fazhi Xie ◽  
Lu Li ◽  
Xiaoyan Sun ◽  
Tingting Hu ◽  
Kang Song ◽  
...  
Keyword(s):  
Thin Films ◽  
Natural Water ◽  
Phosphorus Species ◽  
Water And Sediment ◽  
Reactive Phosphorus ◽  
Diffusive Gradients

Diffusive gradients in thin films (DGT) have gained wide attention for in situ measurement of reactive phosphorus species (PO4) in natural water, sediments and potentially soils.

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