Raparthi Shekhar, Arunachalam J, Das Niranjan, Srirama Murthy A M
National Centre for Compositional Characterisation of Materials, Bhabha Atomic Research Centre, ECIL Post, Hyderabad 500062, India.
Talanta. 2005 Mar 15;65(5):1270-8. doi: 10.1016/j.talanta.2004.09.001.
Multielemental determination and the assessment of purity of cobalt metal used in the preparation of Ni-based super-alloys have been carried out by glow discharge quadrupole mass spectrometry (GD-QMS). Relative sensitivity factors (RSF) generated from certified iron matrix reference samples (NIST 663 and 664 low alloy steel pin standards) could be used for the determination of different trace element constituents of the sample. Different wet chemical procedures were also carried out for the determination of the trace constituents in the sample. The GD-QMS results are in reasonably good agreement with those obtained from wet chemical procedures, validating the use of the RSF values generated on low alloy steel standards for the computation of trace element concentrations in cobalt metal. A variety of molecular ions formed through the reaction of cobalt (matrix) with the discharge gas (argon) were also detected.
采用辉光放电四极杆质谱法（GD-QMS）对用于制备镍基高温合金的钴金属进行了多元素测定和纯度评估。由经认证的铁基体标准样品（NIST 663和664低合金钢销标准样品）生成的相对灵敏度因子（RSF）可用于测定样品中不同的微量元素成分。还采用了不同的湿化学方法来测定样品中的痕量成分。GD-QMS的结果与湿化学方法得到的结果相当吻合，验证了使用低合金钢标准样品生成的RSF值来计算钴金属中微量元素浓度的方法。还检测到了钴（基体）与放电气体（氩气）反应形成的各种分子离子。
