Keywords: SPRi, surface plasmon resonance imaging; SOC, small organic compound; O-DCB, ortho-dichlorobenzene; CyHex-OH, cyclohexanol; Ac, acetone; HCHO, formaldehyde; P-OH, 1-pentanol; Hex-al, hexanal; EtOH, ethanol; RI, refractive index; LOD, limit of detection; p