【摘要】 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2.2×10⁴L·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。更多还原

【Abstract】 The color reaction has been studied for the determination of cobalt with mi-croemulsion and l-（2-pyridylazo）-2-naphthol, and its apparent molar absorptivity is 2.2 × 10⁴L ·mol^-1 ·cm^-1 at 570 nm. Beer’s law is obeyed in the range of 0-50 μg/25 ml for Co （ Ⅱ ）. This method is suggested for the determination of cobalt naphthenate in the gasoline.更多还原