In situ calibration of polar organic chemical integrative samplers to monitor organophosphate flame retardants in river water using polyethersulfone membranes with performance reference compounds

2018 ◽  
Vol 610-611 ◽  
pp. 1356-1363 ◽  
Author(s):  
Ying Li ◽  
Cunman Yang ◽  
Daoping Zha ◽  
Li Wang ◽  
Guanghua Lu ◽  
...  
2021 ◽  
Vol 269 ◽  
pp. 116121
Author(s):  
Branislav Vrana ◽  
Jakub Urík ◽  
Ganna Fedorova ◽  
Helena Švecová ◽  
Kateřina Grabicová ◽  
...  

2011 ◽  
Vol 13 (5) ◽  
pp. 1427 ◽  
Author(s):  
Thitima Rujiralai ◽  
Ian D. Bull ◽  
Neville Llewellyn ◽  
Richard P. Evershed

2019 ◽  
Vol 219 ◽  
pp. 08003
Author(s):  
Maja Verstraeten

The SoLid Collaboration is currently operating a 1.6 ton neutrino detector near the Belgian BR2 reactor. Its main goal is the observation of the oscillation of electron antineutrinos to previously undetected flavour states. The highly segmented SoLid detector employs a compound scintillation technology based on PVT scintillator in combination with LiF-ZnS(Ag) screens containing the 6Li isotope. The experiment has demonstrated a channel-to-channel response that can be controlled to the level of a few percent, an energy resolution of better than 14% at 1 MeV, and a determination of the interaction vertex with a precision of 5 cm. This contribution highlights the major outcomes of the R&D program, the quality control during component manufacture and integration, the current performance and stability of the full-scale system, as well as the in-situ calibration of the detector with various radioactive sources.


2020 ◽  
Vol 92 (10) ◽  
pp. 1717-1731
Author(s):  
Yucui Hou ◽  
Zhi Feng ◽  
Jaime Ruben Sossa Cuellar ◽  
Weize Wu

AbstractPhenolic compounds are important basic materials for the organic chemical industry, such as pesticides, medicines and preservatives. Phenolic compounds can be obtained from biomass, coal and petroleum via pyrolysis and liquefaction, but they are mixtures in oil. The traditional methods to separate phenols from oil using alkaline washing are not environmentally benign. To solve the problems, deep eutectic solvents (DESs) and ionic liquids (ILs) have been developed to separate phenols from oil, which shows high efficiency and environmental friendliness. In this article, we summarized the properties of DESs and ILs and the applications of DESs and ILs in the separation of phenols and oil. There are two ways in which DESs and ILs are used in these applications: (1) DESs formed in situ using different hydrogen bonding acceptors including quaternary ammonium salts, zwitterions, imidazoles and amides; (2) DESs and ILs used as extractants. The effect of water on the separation, mass transfer dynamics in the separation process, removal of neutral oil entrained in DESs, phase diagrams of phenol + oil + extractant during extraction, are also discussed. In the last, we analyze general trends for the separation and evaluate the problematic or challenging aspects in the separation of phenols from oil mixtures.


2015 ◽  
Vol 7 (8) ◽  
pp. 10480-10500 ◽  
Author(s):  
Ting Chan ◽  
Derek Lichti

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