A qualification of Kartini Water Coolant Reactor Based On Data By Flame Atomic Absorption Spectrometry (F-AAS) and Ion Selective Electrode (ISE) Methods

A water coolant reactor represent one of product at reactor cooler system in nuclear reactor. Quality assurance of water coolant reactor needed to fulfilled of conditioned such as the content of Fe, Mn, Mg, Na, Cr, Ca and Cl elements in water coolant reactor < 1 ppm. The content of Fe, Mn, Mg, Na, Cr, and Ca elements in water coolant reactor were detected by flame atomic absorption spectrometry method, while the content of Cl- element was detected by ion selective electrode (ISE). The validation of AAS instrument were done by calibration of AAS instrument using solution of Cu 2 ppm and obtained of sensitivity and precision 0.019 ppm and precision 0.65 % respectively smaller than maximum permissible 0.4 ppm and 1 % respectively. The validation of ISE instrument showed that obtained of slope in the potential ring 0.56 - 0.59 mV. The content of Ca and Cl in ATR each 0.32 ± 0.005 ppm and 1.052 ± 0.009 ppm respectively, while the other elements such as Fe, Mn, Mg, Na, and Cr under the limit of detection. Based on the data show that quality of ATR fulfilled one of the qualifications of IAEA. (author)