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本文研究了Co（Ⅲ）－SB荧光体系。钴的浓度在10(-7)～10(-5)范围内，荧光强度与其浓度成正比，此法的灵敏度明显高于钴的比色法及原子吸收法。
In this paper, Co (Ⅲ) -SB fluorescence system was studied. The concentration of cobalt in the range of 10 (-7) ~ 10 (-5), the fluorescence intensity is proportional to its concentration, the sensitivity of this method was significantly higher than cobalt colorimetry and atomic absorption method.