scholarly journals Defect population variability in deuterated potassium di-hydrogen phosphate crystals

2012 ◽  
Vol 2 (11) ◽  
pp. 1612 ◽  
Author(s):  
Zhi M. Liao ◽  
R. Roussell ◽  
J. J. Adams ◽  
M. Runkel ◽  
W. T. Frenk ◽  
...  
Keyword(s):  
Population Variability ◽  
Hydrogen Phosphate

scholarly journals Mechanistic Insight of Sensing Hydrogen Phosphate in Aqueous Medium by Using Lanthanide(III)-Based Luminescent Probes

Nanomaterials ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 53
Author(s):  
Jashobanta Sahoo ◽  
Santlal Jaiswar ◽  
Pabitra B. Chatterjee ◽  
Palani S. Subramanian ◽  
Himanshu Sekhar Jena
Keyword(s):  
Drug Discovery ◽  
Aqueous Medium ◽  
Hydrogen Phosphate ◽  
Heterocyclic Ligand ◽  
Luminescent Probes ◽  
Mechanistic Insight ◽  
Sensitivity And Selectivity ◽  
Spectrophotometric Titrations ◽  
Ethanesulfonic Acid ◽  
High Degree

The development of synthetic lanthanide luminescent probes for selective sensing or binding anions in aqueous medium requires an understanding of how these anions interact with synthetic lanthanide probes. Synthetic lanthanide probes designed to differentiate anions in aqueous medium could underpin exciting new sensing tools for biomedical research and drug discovery. In this direction, we present three mononuclear lanthanide-based complexes, EuLCl3 (1), SmLCl3 (2), and TbLCl3 (3), incorporating a hexadentate aminomethylpiperidine-based nitrogen-rich heterocyclic ligand L for sensing anion and establishing mechanistic insight on their binding activities in aqueous medium. All these complexes are meticulously studied for their preferential selectivities towards different anions such as HPO42−, SO42−, CH3COO−, I−, Br−, Cl−, F−, NO3−, CO32−/HCO3−, and HSO4− at pH 7.4 in aqueous HEPES (2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid) buffer. Among the anions scanned, HPO42− showed an excellent luminescence change with all three complexes. Job’s plot and ESI-MS support the 1:2 association between the receptors and HPO42−. Systematic spectrophotometric titrations of 1–3 against HPO42− demonstrates that the emission intensities of 1 and 2 were enhanced slightly upon the addition of HPO42− in the range 0.01–1 equiv and 0.01–2 equiv., respectively. Among the three complexes, complex 3 showed a steady quenching of luminescence throughout the titration of hydrogen phosphate. The lower and higher detection limits of HPO42− by complexes 1 and 2 were determined as 0.1–4 mM and 0.4–3.2 mM, respectively, while complex 3 covered 0.2–100 μM. This concludes that all complexes demonstrated a high degree of sensitivity and selectivity towards HPO42−.

Di-ammonium hydrogen phosphate for the consolidation of lime-based historic mortars – Preliminary research

2021 ◽  
Vol 48 ◽  
pp. 45-53
Author(s):  
Agnieszka Defus ◽  
Elena Possenti ◽  
Antonio Sansonetti ◽  
Cristina Tedeschi ◽  
Chiara Colombo ◽  
...  
Keyword(s):  
Hydrogen Phosphate ◽  
Ammonium Hydrogen ◽  
Historic Mortars ◽  
Ammonium Hydrogen Phosphate ◽  
Preliminary Research
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