ideal, non-linear chromatography, 706 ideal adsorbed state, 706 ideal chromatography, 707 ideal dilute solution, 707 ideal gas, 707 ideal mixture, 708 ideally polarized (electrified) interphase, 708 ideally unpolarized (electrified) interphase, 708 identity reaction, 708 illuminance, , , 708 image converter tube, 709 image dissection tube, 709 imaging (photoimaging), 709 imbalance, 709 imbibition in colloid chemistry , 710 imenes [obsolete] , 710 imides, 710 imidic acids, 710 imidines, 711 imidogens [obsolete] , 711 imidonium ions [obsolete] , 711 imidoyl carbenes, 711 imidoyl nitrenes, 711 imin [obsolete] , 712 imine radical [obsolete] , 712 imines, 712 iminium compounds, 712 imino acids, 713 imino carbenes, 713 iminooxy (iminoxy) radicals [obsolete] , 713 iminoxyl radicals, 713 iminyl carbenes, 714 iminyl radicals, 714 iminylium ions, 714 immersional wetting, 714 immiscibility, 714 immiscible polymer blend, 715 immission dose in atmospheric chemistry , 715 immission flux in atmospheric chemistry , 715 immission in atmospheric chemistry , 715 immission rate in atmospheric chemistry , 715 immobile adsorption, 716 immobilization in biotechnology , 716 immobilized enzyme, 716immobilized phase in chromatography, 716 immune response, 716 immunization, 717 immunoassay, 717 immunochemistry, 717 immunogen, 717 immunoglobulin (Ig), 718 immunoradiometric assay, 718 immunosuppression, 718 impact parameter, , 718 impact-modified polymer, 718 impaction, 719 impedance, , 719 impingement, 719 impinger, 719 imprecision in analysis , 720 impregnation in chromatography, 720 impregnation in polymer chemistry , 720 improved canonical variational transition-state theory (ICVTST) , 720 in situ micro-X-ray diffraction (Kossel-technique), 721 in situ microanalysis, 721 in vitro , 721 in vivo , 721 in-laboratory processing in analytical chemistry , 722 in-out isomerism, 722 in-situ composite formation, 722 inaccuracy in analysis , 722 inch, 723 incidence in medicinal chemistry , 723 incinerator, 723 inclusion compound (inclusion complex), 723 incoherent radiation, 724 increment (for bulk materials and large units), 724 indicated hydrogen, 724 indicator electrode, 725 indicator (visual), 725 indifferent absorbing ion, 725 indifferent electrolyte, 725 indirect amplification, 726 indirect reaction, 726 individual gauge for localized orbitals (IGLO), 726 individual perception threshold in atmospheric chemistry , 726 induced radioactivity, 727 induced reaction, 727 inducer in enzyme catalysis , 727induction in enzyme catalysis , 727 induction period, 728 inductive effect, 728 inductomeric effect, 728 inelastic scattering, 728 inert, 729 inert gas, 729 inertial defect, 729 inertial separator, 729 infinite source thickness, 729 information theory, 730 infrared, 730 inherent viscosity of a polymer , 730 inhibition, 731 inhibitor, 731 inhibitory concentration (), 732 inhibitory dose (), 732 inhomogeneity error in spectrochemical analysis , 732 initial (final) state correlations, 732 initial rate method, 732 initiation, 733 initiator, 733 injection temperature in chromatography , 733 inner electric potential, , 733 inner filter effect, 733 inner Helmholtz plane (IHP), 734 inner layer (compact layer) in electrochemistry , 734 inner orbital X-ray emission spectra, 734 inner-sphere electron transfer, 734 inoculation, 735 inorganic polymer, 735 inorganic–organic polymer, 735 inositols, 735 input rate in analysis , 735 insert in biotechnology , 736 insertion, 736 instability of Hartree–Fock solution, 736 instability (with reference to instrumentation), 737 instantaneous current, 737 instantaneous rate of flow in polarography , 737 instantaneous (spot) sampling in atmospheric chemistry , 738 instrumental activation analysis, 738 instrumental dependability, 738 instrumental indication (for a precision balance), 738