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本文研究了以微乳液为介质时钴与PAN的显色反应,该体系在570nm处有最大吸收,其表观摩尔吸光系数为2.2×10~4L·mol~(-1)·cm~(-1),钴量在0～50μg/25ml范围内符合比耳定律。该法适用于汽油中环烷酸钴的测定。
In this paper, the color reaction of cobalt with PAN with microemulsion as mediator was studied. The system has the maximum absorption at 570 nm with an apparent molar absorptivity of 2.2 × 10 ~ 4L · mol ~ (-1) · cm ~ (- 1), the cobalt content in the range of 0 ~ 50μg / 25ml Beer’s law. This method is suitable for the determination of cobalt naphthenate in gasoline.