QUANTITATIVE ANALYTIC METHOD FOR ANTIMON OR CADMIUM

摘要

The present invention relates to a quantitative analytic method for antimon or cadmium comprising: a step of preparing a talc powder which is a blank powder reference specimen; a step of preparing at least two powder referenced specimens with different concentrations by adding antimon or cadmium to the talc powder; a step of selecting an interference element of which a corresponding energy value is within the anitmon or cadmium detecting an energy value range among the elements detected by radiating X-rays to the analysis specimen; a deconvolution step of correcting the antimom or cadmium detecting energy peak among energy peaks detected in the step of selecting the interference element by radiating the X-rays to the liquid reference specimens with different concentrations from a detected energy peak of the overlapped interference element; a step of preparing a reference calibration curve by performing the deconvolution step after radiating the X-rays to the prepared liquid reference specimens with the different concentrations separately; and a step of measuring a concentration of the antimon or cadmium of the analysis specimen in accordance with a reference calibration method based on the reference calibration curve prepared based on the detected energy peaks after detecting the energy peak by radiating the X-rays to the analysis specimen. The purpose of the present invention is to provide an optimal X-ray fluorescence analysis capable of conveniently, rapidly, and accurately analyze antimon or cadmium existing in the liquid specimen by a small amount.