SEARCH Articles Figures Tables First-principles calculations, solid-state Liquid-solid flotation principles Liquid-solid phase-contacting principles Matrix solid phase dispersion principle Physical Principles and Methods of Single-Molecule Spectroscopy in Solids Principles of Solid State Sintering Principles of Solid-State Biological Inorganic Chemistry Principles of Solid-State NMR Spectroscopy Separation principles for the various solid phases Solid oxide fuel cells operating principle Solid phase extraction principles Solid phase principle Solid utility principle Solid) principle states Solid-phase microextraction principles Solid-state NMR spectroscopy principles Solide principle Solide principle Solids, mixing principles The Principle of Solid Phase Extraction