CAJ | 학술논문

研究并确定了微波消解合金钢的最佳条件，应用双波长等吸收方法解决了PAR-Co2＋，Ni2＋体系中Co2＋，Ni2＋同时测定问题。测定了标准合成样品中的Co2＋和Ni2＋，其回收率分别在98.2％～103.6％和97.9%～103.7％之间。对多种合金钢样品中Co2＋和Ni2＋进行测定，钴和镍的相对标准偏差分别≤1.00％和≤1.10％；相对误差分别≤±2.5％和≤±2.0％，均优于常压消解合金钢样品所得结果。采用本法测定合金钢中钴和镍，快速、准确、样品损失少、酸用量少，并大大降低环境污染。
연구병학정료미파소해합금강적최가조건，응용쌍파장등흡수방법해결료PAR-Co2＋，Ni2＋체계중Co2＋，Ni2＋동시측정문제。측정료표준합성양품중적Co2＋화Ni2＋，기회수솔분별재98.2％～103.6％화97.9%～103.7％지간。대다충합금강양품중Co2＋화Ni2＋진행측정，고화얼적상대표준편차분별≤1.00％화≤1.10％；상대오차분별≤±2.5％화≤±2.0％，균우우상압소해합금강양품소득결과。채용본법측정합금강중고화얼，쾌속、준학、양품손실소、산용량소，병대대강저배경오염。
In this paper, alloy steel samples are digested in the sealed vessel by the microwave digestion system. The optimum parameters for microwave digestion are studied and selected. Cobalt and nickel in the colored system of Co2+ and Ni2+ 4-(2-pyridylazo) resorcinol (PAR) can be determined simultaneously by dual-wavelength equal absorption spectrophotometry. The recoveries of Co2+ and Ni2+ in synthetic samples are within 98.2%-103.6% and within 97.9%-103.7%, respectively. The relative standard deviations of analytical results in alloy steel are less than 1.00% for Co2+ and less than 1.10% for Ni2+, and relative errors are less than ±2.5% for Co2+ and less than ±2.0% for Ni2+. These results are all less than those of digestion in atmosphere. The experimental results show that the method is rapid, precise, and less contaminative.