2David 0 H.Fluorine in health care:Organofluorine contai-ning blockbuster drugs[J].Journal of Fluorine Chemistry,2010,131(11):1071-1081.
3ZhouY Y,Yu C,Shan Y.Adsorption of fluoride from aque-ous solution on La3 +-impregnated cross-linked gelatin[J].Separation and Purification Technology,2004,36(2):89-94.
4Viswanathan N,Meenakshi S.Selective sorption of fluorideusing Fe( 1H) loaded carboxylated chitosan beads[J].Jour-nal of Fluorine Chemistry,2008,129(6):503-509.
5Jagto S,Yenkie M K,Das S,et al.Synthesis and character-ization of lanthanum impregnated chitosan flakes for fluorideremoval in w#ter[J].Desalination,2011,273(2):267-275.
6Viswanathan N,Meenakshi S.Synthesis of Zr ( IV ) en-trapped chitosan polymeric matrix for selective fluoride sorp-tion[J].Colloids and Surfaces B:Biointerfaces,2009,72(1):88-93.
7Yao R,Meng F,Zhang L,et al.Defluoridation of water usingneodymium-modified chitosan[J].Journal of Hazardous Ma-terials,2009,165(1):454-460.
8KambleS P,Jagtap S,Labhsetwar N K,et al.Defluoridation of drinking water using chitin,chitosan and lanthanum-modified chitosan[J].Journal of Chemistry Engineering,2007,129(1):173-180.
9Zhao Y P,Li X Y,Liu L,et al.Fluoride removal by Fe(HI )-loaded ligand exchange cotton cellulose adsorbentfrom drinking water[J].Carbohydrate Polymers,2008,72(1):144-150.
10Popat K M,Anand P S,Dasare B D.Selective removal offluoride ions from water by the aluminium form of the aminomethyl phosphonic acid-type ion exchange[J].Reactive Pol-ymers,1994,23(1):23-32.
