Animal bones wastes for coiled solid phase microextraction
The use of natural products, or wastes from them, to fabricate sorptive phases is an interesting research line with green connotations. Ramzi and Farrokhzadeh have evaluated, in a recent article accepted for publication in Journal of Separations Science, the potential use of animal bone wastes in this context. From the chemical point of view, bones are inorganic/organic composite materials where the inorganic part is mainly composed by carbonated hydroxyapatite while collagen fibers comprise the main part, up to 90 %, of the organic material. "Electronic micrograph 10000 magnification of mineralized collagen fibers in bone" by Bertazzo S used under CC BY . Via wikipedia The proposed procedure for the fabrication of the coating is simple. Bone wastes are firstly grounded, cleaned and dried. The resulting solid is dispersed in a citric acid solution and heated for a defined period o time. Finally, the solid phase microextraction (SPME) support is immersed into the solu...