The determination of chromium in biological materials by atomic absorption spectroscopy. Analytica chimica acta 557 spectrophotometric determination of chromium(ill) with edta g. Chromium(iii) selective membrane sensors based on schiff bases as chelating ionophores. Author information (1)department of chemistry, indian institute of technology-roorkee, roorkee 247667, india. Sensitive and selective spectrofluorimetric determination of chromium(vi) in water by fluorescence enhancement. free online library speciation of chromium using wide-bore capillary electrophoresis with electrothermal atomic absorption spectrometry detectionkroomi eri vormide spetsifitseerimine suure diameetriga kapillaari elektroforeesi ja aatomiabsorptsioon-spektrofotomeetria abil. Preconcentration and speciation of chromium by the determination of total chromium and chromium(iii) in natural waters by flame atomic absorption spectrometry with a chelating ion-exchange flow injection system, anal. A part of the chromium(iii)-humic or -fulvic acid complexes having a negative charge was of lower molecular weight. Chromium (iii) spiked in fresh water exists as various soluble anionic andor uncharged species, and the molecular weights of these anionic complexes correspond to those of chromium(iii)-humic and -fulvic complexes. Conditional stability constants for copper ions with ligands in natural waters. Preconcentration of chromium(iii) from sea water by silica adsorption with voltammetric determination. (1988) analysis of cobalt, chromium and nickel in biological materials - state of the art.