CAJ | 학술논문

采用NaOH熔融、蒸馏水浸取、盐酸中和并酸化、氟化物解聚和钼酸铵显色测定铁矿石中的二氧化硅.本方法的检出限为0.10%.本实验以测定了国家一级铁矿标样来验证方法的准确度和精密度,测定结果与标准值相符,且测定12次的相对标准偏差(RSD)均小于10%.
채용NaOH용융、증류수침취、염산중화병산화、불화물해취화목산안현색측정철광석중적이양화규.본방법적검출한위0.10%.본실험이측정료국가일급철광표양래험증방법적준학도화정밀도,측정결과여표준치상부,차측정12차적상대표준편차(RSD)균소우10%.
This paper introduced determination of SiO2 in iron ore using NaOH fusion, distilled water extraction, hydro-chloric acid neutralization and acidification, fluoride deploymerization and ammonium molybdate coloration. This meth-od has detection limit of 0.10%. It was performed on national first-grade iron ore standard to confirm the accuracy and precision of the method. The test results conformed to the standard, with relative standard deviations less than 10% for 12 determinations.