title: [Determination of potassium in sodium by flame atomic emission spectroscopy].
abstract: Sodium is used as a coolant in China experiment fast reactor (CEFR). Potassium in sodium has an influence on heat property of reactor. A analytical method has been developed to determinate potassium in sodium by flame atomic emission spectroscopy. Sodium sample is dissolved by ultrasonic humidifier. The working conditions of the instrument and inTerferences from matrix sodium, acid effect and concomitant elements have been studied. Standard addition experiments are carried out with potassium chloride. The percentage recoveries are 94.7%-109.8%. The relative standard deviation is 4.2%. The analytical range accords with sodium quality control standard of CFFR. The precision corresponds to the international analytical method in sodium coolant reactor.
authors.affiliation: China Institute of Atomic Energy, P.O. Box 275(92), 102413 Beijing.
authors.forename: C
authors.initials: C
authors.lastname: Xie
authors.forename: X
authors.initials: X
authors.lastname: Wen
authors.forename: Y
authors.initials: Y
authors.lastname: Jia
authors.forename: S
authors.initials: S
authors.lastname: Sun
mesh_terms: D011188:Potassium / Q000032:analysis*; D011189:Potassium Chloride / Q000032:analysis; D012964:Sodium / Q000032:analysis* / Q000302:isolation & purification*; D012965:Sodium Chloride / Q000032:analysis; D013054:Spectrophotometry, Atomic
chemical_list: D012965:Sodium Chloride; D011189:Potassium Chloride; D012964:Sodium; D011188:Potassium