Multielements in normal people's and cancer patient's hair and serum samples were simultaneously determine with inductively coupled plasma-at. emission spectrometry (ICP-AES). The trace amount of Se in hair and serum was determine with a graphite furnace atomic absorption spectrometer (GF-AAS). The experimental results obtained were then studied with the chemometric technique. Both partial least squares (PLS) and Gram-Schmid methods were applied to the classification of normal people and cancer patients. The technique developed is considered to be used as a preliminary clin. diagnostic method for cancer patients. Hair samples are preferred as the analyte due to their easy sampling, treatment, storage as well as transportation.

Key words: DIAGNOSIS, ATOMIC ABSORPTION SPECTROPHOTOMETRY, CARCINOMA, HUMAN HAIR, GRAPHITIZING FURNACES, SERUM, ICP, ATOMIC EMISSION SPECTROMETRY, STOICHIOMETRY