NMRIRSpectroscopyThe objective of this work was to quantify the effect of the presence of water as impurity in ionic liquids. First, density and viscosity of five ionic liquids as well as their aqueous solutions were measured. For hydrophobic dried ionic liquids, traces of water (50 ppm) have...
The Profile NMR-MOUSE has been used to monitor the penetration and the sublimation process of cyclododecane in Carrara marble, Lecce stone, and mortar [33]. Depending on the porous structure and on the method of application, cyclododecane can act as a suitable temporary consolidant and protective...
et al. Characterizing the influence of water on charging and layering at electrified ionic-liquid/solid interfaces. Advanced Materials Interfaces 2 (2015). McLean, B. et al. Nanostructure of li(g4) tfsi and li(g4) no3 solvate ionic liquids at hopg and au(111) electrode interfaces as a ...
In summary, we observe no positive effect of water on the growth rate or carbon impurity levels of metallic Npriefsiulmmseftohra5t .a0naynpdro7m.5o mtiMonaNl ie(fafeccatc)o2f feedstock, in contrast to deposition from 2.5 mM precursor solutions. We surface OH-groups for the precursor ...
24. Gavin, P.F., Olsen, B.A., “A quality by design approach to impurity method development for atomoxetine hydrochloride (LY139603),” J. Pharm. Biomed. Anal., 2008, 46, 431-441. 25. Li, Y.; Terfloth, G., Kord, A. S. “...
In this study, drinking water disinfection with ClO2 containing 0-25% chlorine impurity (i.e., at Cl-2 to ClO2 mass ratios of 0-25%) was simulated, and the effect of chlorine impurity on the DBP formation and developmental toxicity of the finished water was evaluated. With increasing the...
The surface melting on the interfaces of soil particle and the pore ice has key influence on the variation of the liquid water content. Meanwhile, the unfrozen water content increases with the increasing impurity concentration and surface charge on soil particles. Besides, the unfrozen water ...
Secondary C+ ions were centred in the 2000 μm field aperture (field of view on the sample of ca. 20 μm) automatically at the start of each analysis, passed through a 50 eV energy window and separated using a magnetic field that was locked to high stability using an NMR field sensor...
This percent degradation was determined by NMR analysis. Additionally, provided are linear mPEG polymer alkanals of the invention that are substantially free of the corresponding PEG-dialkanal (i.e., a homobifunctional PEG impurity arising from the presence of an amount of PEG-diol in the mPEG...
TLC showed a small spot for a less polar dye (RPS-F plates with 8/2 or 7/3 water:methanol or silica gel plates with 10% water in acetonitrile), although according to NMR any impurity was probably less than 1%. Likewise, there was no alcohol contamination. It analyzed C 35.93, 35.87;...