CAJ | 학술논문

探讨了火焰原子吸收法(FAAS法)快速测定铁矿石中金属铁的分析条件。对试样的溶解方法、元素分析线、共存元素干扰、仪器分析最佳条件等进行了试验。金属铁含量在0.2%～2.0%范围与吸光度呈良好的线性，线性方程为y=22.924x-0.8458，相关系数r=0.9991。将该法用于铁精粉样品中金属铁的测定，测定结果的相对标准偏差为1.10%～2.98%(n=6)，加标回收率为98.0%～103.0%。
탐토료화염원자흡수법(FAAS법)쾌속측정철광석중금속철적분석조건。대시양적용해방법、원소분석선、공존원소간우、의기분석최가조건등진행료시험。금속철함량재0.2%～2.0%범위여흡광도정량호적선성，선성방정위y=22.924x-0.8458，상관계수r=0.9991。장해법용우철정분양품중금속철적측정，측정결과적상대표준편차위1.10%～2.98%(n=6)，가표회수솔위98.0%～103.0%。
Analytical conditions for determination of metallic iron in iron ore by flame atomic absorption method (FAAS method) were discussed. The analytical conditions including sample dissolution method, element analytical line, interferences of coexisting elements, background correction and working parameters of the spectrometer were studied and optimized. Metallic iron content was linear with absorbance in range of 0.2%-2.0%. The linear equation was y=22.924x-0.845 8 with correlation coefficient of 0.999 1. The method was used for measuring the content of metallic iron in iron ores, and the relative deviation was 1.10%-2.98%(n=6), the standard adding recovery was in the range of 98.0%-103.0%.