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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. Author information (1)department of chemistry, tsinghua university, beijing 100084, pr china. Determination of chromium in sea water by atomic absorption spectrometry. Determination of hexavalent chromium in exhaled breath condensate and environmental air among chrome plating workers. Goldoni m, caglieri a, poli d, vettori mv, corradi m, apostoli p, mutti a. A microfluidic paper-based analytical device for rapid quantification of particulate chromium. Acta, 36 (1966) 135 137 roo times by weight greater than that of chromium. The same amount of phosphate, fluoridc and citrate caused, however, low results. The presence of a 50-fold amount of sodium, potassium, calcium, barium, cadmium or zinc and a 20-fold amount of nickel, alumi- nium, molybdenum or tungsten did not cause any interference.