CHEMICAL COMMUNICATIONS- ROYAL SOCIETY OF CHEMISTRYLi, Y.; Li, S.; Yan, P.; Wang, X.; Yao, X.; An, G.; Li, G. Luminescence-colour-changing sensing of Mn2+ and Ag+ ions based on a white-light-emitting lanthanide coordination polymer. Chem. Commun. 2017, 53, 5067-5070. [Cross...
Colour of chemical_各种化学品的颜色_附图 Colour of chemical Ions in aqueous solution Name Formula Color Titanium (III)Ti3+ Violet Vanadium (II)V2+ Lavender Vanadium (III)V3+ Dark grey/green Vanadyl VO2+ Blue Pervanadyl VO2+ Yellow Chromium (III)Cr3+ Blue-green Chromate CrO4 2- Colorless ...
The colourimetric assay is based on the aggregation of MarR-coated gold nanoparticles in the presence of Cu2+ ions, which induces a red-to-purple colour change of the solution. The colour variation in the gold nanoparticle aggregation process can be used for qualitative and quantitative detection...
However, upon presentation of Mn2+, Zn2+ is displaced from EGTA to bind 5-Br-PAPS to produce a pronounced colour change from yellow to purple. The absorbance decreases at 449nm and increases at 552nm, both linearly to Mn2+ concentration at low micromolar levels. This should be very ...
Independence from Mn2+ ions of the catalytic activity of versatile peroxidase from P. ostreatus D1 towards different substrates was revealed. Finally, differences in the catalytic activity towards anthracene-type dyes and monoaromatic substrates of both peroxidases were found....
Emission colour changes in the CaF2 sub-microspheres doped with Yb3+, Er3+ and Mn2+ ions - ScienceDirectAgata Szczeszak aTomasz Grzyb aGrzegorz Nowaczyk bAnna Ekner-Grzyb cJournal of Alloys and Compounds
Here its polarised optical absorption spectra are interpreted on the basis of compositional and structural data, indicating the presence of transition-metal ions (Fe2 , Fe3 and Mn2 ) in different sites. Their possible contribution to colouration is discussed, but the spectral anisotropy suggests that...
EXAFS experiments confirm the presence of Mnions before and Mnions after thermal treatment in fossilised ivory and the location of Mnions on a P analogous site in apatite.doi:10.1127/0935-1221/2002/0014-1069Reiche, InaMorin, GuillaumeBrouder, Christian...
ionsChemosensorNaked-eyeFluorescencequenchingA novel chemosensor, 4(1H-benzo[d]imidazol-2-yl)-2-(pyridin-2-yl)quinoline is described which could selectively detect Cu2+ ions. Addition of Cu2+ ion…[PriyankaA.MoreGanapatiS.Shankarling]Sensors and Actuators B: Chemical...
The effect of some process parameters (CV concentration, number of TiO2 glass slides, pH and presence of metallic cations as interfering ions such as Cu2+, Fe2+, Fe3+, Mn2+ and Zn2+) was investigated. It was found that the decolourization process follows a pseudo-first order with ...