【摘要】 提出一种同时测定三组份的新方法 ,即K系数 -多波长线性回归分光光度法 ,用于同时测定原油中的铁、钴、镍。以OP -5-Br-PADAP为显色体系 ,控制 pH为 4 0以消除干扰。相对标准偏差在 1 1 %～ 5 3%之间。该方法简便、准确 ,灵敏度高。更多还原

【Abstract】 Dual-wavelength K coefficient spectrophotometry and multiwavelength linear regression spectrophotometry are used in combination in a new method for the simultaneous determination of three components,iron,cobalt and nickel in oil by using OP-5-Br-PADAP at pH 4.0 with a RSD of 1.1%～5.3%.The method is simple,accurate and highly sensitive. [更多还原