FLUORINE APATITE, ADSORPTION DEVICE, AND SEPARATION METHOD

摘要

A fluorine apatite according to the present invention can be used for separating an electrically chargeable substance from a sample solution containing the electrically chargeable substance and a substance other than the electrically chargeable substance. The fluorine apatite is characterized by being represented by general formula: Ca10(PO4)6(OH)2-2xF2X wherein x fulfills the relationship represented by the equation: 0.05 <= x <= 0.76. The fluorine apatite according to the present invention has excellent acid resistance and can separate the electrically chargeable substance from the sample solution with high accuracy. The present invention also provides: an adsorption derive, in which the fluorine apatite is provided as an adsorbent; and a method for separating an electrically chargeable substance using the fluorine apatite.