摘要
本文研究了应用ＩＣＰ－ＭＳ法测定钢铁中微量杂质元素（Ａｓ、Ｓｎ、Ｓｂ、Ｐｂ、Ｂｉ）的实验方法。考察了内标元素，试样溶解介质、酸度，分离、富集条件，样品基体等因素对测定结果的影响。用数学公式校正ＨＣＩ对测定Ａｓ的干扰。实验结果表明，用硝酸或王水溶解样品，Ｉｎ为内标元素，数学校正消除谱线及非谱线干扰，按此方法测定标准钢样中上述微量杂质元素所得结果与推荐值相吻合，ＲＳＤ小于８％，可直接进行钢铁样品中＂五害＂元素的分析。
A procedure for determinating trace elements(AS,Sn,Sb,Pb,Bi)in steels and alloys by ICP-MS is described. Some experiments,such as the introduction of internal standard in to neglect the matrix suppression,the seperation and the preconcentration to improve the determination limits and the mathematical correction to eliminate spectral and other interference on As determination have been conducted.Several reference specimens were analysed by this method, and the satisfactory results which coincides with certified value in RSD≤8% were obtained.Therefore,it could suggest an accurate and fast method for measuring the five detrimental trace elements in practice.
出处
《质谱学报》
EI
CAS
CSCD
1996年第1期9-14,共6页
Journal of Chinese Mass Spectrometry Society
基金
中国科学院大型仪器功能开发基金
