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本文试图以国产钙型螯合树脂富集水中微量 Cu、Pb、Cd、Ni、Zn 并用火焰原子吸收光谱进行测定。首先测定了它们在柱上吸留与水样 PH 之间的关系、洗脱曲线。对实际水样测定回收均在90%以上(除 Pb),富集倍数达400倍。用火焰原子吸收法测定,可测定 Cu 0.5PPb,Cd 0.2PPb,Ni 1.3PPb,Pb 5PPb。研究了一些环境水体中常见的配位体对微量金属在柱上吸留的影响与流速的关系,建立了测定金属有机结合态分量的方法,并测定了水中微量 Cu、Pb、Cd、Ni 的总含量及以稳定的有机结合态存在的分量。以 EDTA 模拟能与金属形成稳定络合物的配他体,以 Cu 为指示金属通过螯合树脂,测定了环境水体中的给合容量。
This paper attempts to enrich the trace amounts of Cu, Pb, Cd, Ni, Zn in water with calcium chelate resin and determine by flame atomic absorption spectrometry. First, the relationship between their occlusion on the column and the pH of the water sample, the elution curve, was determined. The actual water samples were recovered at 90% (except Pb), the enrichment factor up to 400 times. By flame atomic absorption spectrometry, Cu 0.5PPb, Cd 0.2PPb, Ni 1.3PPb, Pb 5PPb can be measured. The relationship between the effect of trace metals occluded on the column and the flow rate was studied. The method for the determination of metal organic binding components was established and the trace amounts of Cu, Pb, Cd and Ni in water were determined The total content and the presence of a stable organic bound components. With EDTA simulation can form stable complexes with metals with his body, with Cu as the indicator metal through the chelating resin, measured in the ambient water to the co-capacity.