CAJ | 학술논문

建立电感耦合等离子体发射光谱法同时测定镍钼中间合金中Mo，Fe，Al，Si，P元素含量的方法。样品用15 mL盐酸–硝酸–水溶液(体积比1∶1∶1)溶解。对共存元素进行了干扰试验，采用基体匹配法消除基体的影响，确定了Mo，Fe，Al，Si，P元素最佳分析谱线分别为202.095，176.641，238.204，288.158，178.287 nm。测定Mo， Fe，Al，Si，P的线性范围分别为250.0～350.0，0.0066～5.0，0.09～1.0，0.066～1.0，0.130～0.30 mg／L，线性相关系数r≥0.9995，上述5种元素的检出限为0.002～0.04 mg／L，加标回收率为95.0%～110.0%，测定结果的相对标准偏差小于4.55%(n=11)。该方法简便、快速、准确，满足镍钼中间合金日常生产的检测要求。
건립전감우합등리자체발사광보법동시측정얼목중간합금중Mo，Fe，Al，Si，P원소함량적방법。양품용15 mL염산–초산–수용액(체적비1∶1∶1)용해。대공존원소진행료간우시험，채용기체필배법소제기체적영향，학정료Mo，Fe，Al，Si，P원소최가분석보선분별위202.095，176.641，238.204，288.158，178.287 nm。측정Mo， Fe，Al，Si，P적선성범위분별위250.0～350.0，0.0066～5.0，0.09～1.0，0.066～1.0，0.130～0.30 mg／L，선성상관계수r≥0.9995，상술5충원소적검출한위0.002～0.04 mg／L，가표회수솔위95.0%～110.0%，측정결과적상대표준편차소우4.55%(n=11)。해방법간편、쾌속、준학，만족얼목중간합금일상생산적검측요구。
A method for the determination of Mo,Fe,Al,Si,P in Ni–Mo alloy by ICP–AES was established. The sample was dissolved with 15 mL HCl–HNO3–H2O solution (volumn ratio was 1∶1∶1). Interference of coexisting elements was tested and interference of matrix effct was eliminated by matrix matching. The optimum analytical lines of Mo,Fe,Al,Si,P were 202.095, 176.641, 238.204, 288.158,178.287 nm,respectively. The linear range of Mo,Fe,Al,Si, P was 250.0–350.0,0.006 6–5.0, 0.09–1.0, 0.066–1.0,0.130–0.30 mg/L,respectively. The linear correlation coefficient was more than 0.999 5. The detection limits were in the range of 0.002–0.04 mg/L,the recovery obtained by standard addition method in the range of 95.0%–110.0%with relative standard deviation less than 4.55%(n=11). The method is simple,rapid and accurate,it can meet the requirements of Ni–Mo alloy daily testing .