CAJ | 학술논문

以ICP-OES法测定八氧化三铀中杂质元素钨。采用浓HNO3-浓HCl、浓HNO-HF、3 mol/L HNO3三步酸溶方案，利用CL-TBP萃淋树脂将铀基体分离，淋洗液基质为3 mol/L HNO3，淋洗液流速为1 mL/min。弃去最初2 mL死体积淋洗液后接收10 mL，分离回收率平均值为95.93%，线性方程为y=539.71x+16.6，相关系数r2=0.9997，4水平样品测定结果的相对标准偏差为0.39％～3.12％(n=6)。用该方法对标准物质进行测定，测定结果在参考值范围内。
이ICP-OES법측정팔양화삼유중잡질원소오。채용농HNO3-농HCl、농HNO-HF、3 mol/L HNO3삼보산용방안，이용CL-TBP췌림수지장유기체분리，림세액기질위3 mol/L HNO3，림세액류속위1 mL/min。기거최초2 mL사체적림세액후접수10 mL，분리회수솔평균치위95.93%，선성방정위y=539.71x+16.6，상관계수r2=0.9997，4수평양품측정결과적상대표준편차위0.39％～3.12％(n=6)。용해방법대표준물질진행측정，측정결과재삼고치범위내。
Tungsten in U3O8 was determined by ICP-OES method. Sample was prepared with HNO3-HCl, HNO3-HF, 3 mol/L HNO3 in proper order, U was separated by CL-TBP with 3 mol/L HNO3, the flow velocity was 1 mL/min. 10 mL filter solution was received after 2 mL dead filter was discarded, the recovery ratio was 95.93%, the work-curve lin-ear equation was y=539.71x+16.6 with the correlative coefficient (r2) of 0.999 7. 4 level samples were determined and the relative standard deviation was 0.39%-3.12%(n=6). Reference material was determined by the method and the determina-tion results were in the reference range.