Arkhipova, A. A. published the artcileDifferent Approaches to Solid-Phase Extraction of Lanthanum with Low-Polar Sorbents: Comparison of Dynamic Coating, Impregnation and On-Line Mixing, SDS of cas: 4551-69-3, the publication is Separation Science and Technology (Philadelphia, PA, United States) (2015), 50(5), 729-734, database is CAplus.
Three different approaches to preconcentration of metal ions using low-polar sorbents were compared: dynamic coating of the sorbent surface with hydrophobic chelating reagent; impregnation of the sorbent with a solution of the reagent in a suitable volatile organic solvent; and online merging of sample and reagent streams prior to solid-phase extraction of metal-reagent complexes. Lanthanum was used as a model analyte; 1-phenyl-3-methyl-4-benzoylpyrazol-5-one (PMBP) as a reagent for preconcentration It was found out that the most effective approach for the analyte recovery from a large sample volume is the use of a dynamically coated sorbent with high sp. surface.
Separation Science and Technology (Philadelphia, PA, United States) published new progress about 4551-69-3. 4551-69-3 belongs to pyrazoles-derivatives, auxiliary class Benzenes, name is 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, and the molecular formula is C17H14N2O2, SDS of cas: 4551-69-3.
Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics