Ion Exchange in Hydroxyapatite with Lanthanides

Giant exchange interaction in mixed lanthanides.

Combining strong magnetic anisotropy with strong exchange interaction is a long standing goal in the design of quantum magnets. The lanthanide complexes, while exhibiting a very strong ionic anisotropy, usually display a weak exchange coupling, amounting to only a few wavenumbers. Recently, an isostructural series of mixed (Ln = Gd, Tb, Dy, Ho, Er) have been reported, in which the exchange spli...

Sodium Ion Exchange in

2 3 Na two-dimensional nutation N M R was applied to N a t + *Zr 2 Si v P 3 _ v O, 2 with x = 0, 1, and 2. The nutat ion spectrum in each compound consists of two clearly separated peaks corresponding to the two crystallographically inequivalent sodium sites. In the compound with x = 2 the nuclear quadrupole coupling constants (e Qq/h) and the asymmetry parameters (rj) were by spectral simulati...

Reactions of Fluoride Ion with Hydroxyapatite by Harold

A problem of long standing in the study of dentin and enamel is the exact nature and structure of the inorganic material in these tissues. A review of these studies from the time of Berzelius in 1845 up to 1949 has been published by Armstrong (1). In general the mineral component of teeth as well as bones consists chiefly of a basic calcium phosphate which is most probably hydroxyapatite (2, 3)...

Reactions of Fluoride Ion with Hydroxyapatite by Harold G. Mccann

A problem of long standing in the study of dentin and enamel is the exact nature and structure of the inorganic material in these tissues. A review of these studies from the time of Berzelius in 1845 up to 1949 has been published by Armstrong (1). In general the mineral component of teeth as well as bones consists chiefly of a basic calcium phosphate which is most probably hydroxyapatite (2, 3)...

Monitoring Protein PEGylation with Ion Exchange Chromatography