![]() A typical XRF spectrum of the sample is shown after XRF analysis, sample and standard pellets were sealed in clean polyethylene bags and were irradiated in AHWR critical facility reactor, BARC for 4 h. Characteristic K α X-ray of Sb (26.35 keV) was used for quantification. EDXRF measurement was carried out using Jordan Valley, EX-3600 M spectrometer with a Rhodium X-ray source. Sample pellets were also prepared by mixing with microcrystalline cellulose. For EDXRF analysis, calibration standards were prepared by mixing spectroscopic grade antimony trioxide with microcrystalline cellulose (2.5 to 20 mg g -1 of antimony) and pellets were made by using hydraulic press. X-ray diffraction (XRD) measurement indicated that the sample was antimony trioxide. Antimony oxide encapsulated in stainless steel tube (internal diameter = 0.5 mm) was received from BHAVINI, Kalpakkam. ![]() In this work, the study reported the determination of antimony by energy dispersive X-ray fluorescence (EDXRF) spectrometry and validation of the result by neutron activation analysis (NAA) technique. Although gravimetry is the most precise and accurate method for % level analysis, it is tedious and time consuming. 124 Sb (γ-ray energy = 1.69 MeV t 1/2 = 60 d) is obtained by irradiating antimony oxide and as per specification, antimony content in the oxide should be ≥ 83.0 % i.e antimony should be in the form of trioxide. It is proposed to use 124 Sb - 9 Be neutron source for starting Proto Type Fast Breeder Reactor, IGCAR, Kalpakkam. ![]() International Nuclear Information System (INIS) Determination of antimony in antimony oxide by EDXRF and NAA
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