【摘要】 邻苯基苯酚与浓硫酸、甲醛和高铁离子生成红色化合物。该法可直接用于测定柑桔中的邻苯基苯酚的含量。邻苯基苯酚含量在0～2.5ug/5ml服从比耳定律。对桔皮的平均回收率为95.54％(n=10),标准偏差为±0.39,变异系数为2.43％。对桔肉的平均回收率为97.26％(n=10),标准偏差为±0.51,变异系数为3.56％。更多还原

【Abstract】 O-Phenylphenol react with sulfuric acid, formaldehyde and ferric iron to form a red colour compound. This method can be applied directly to determine O-Phenylphenot in orange fruit with satisfactory results. Bear’s law is obeyed for 0～2.5ug/5mL of O-Phenylphenol. The orange peel recovery of 98.54％ (n=10), standard deviation of ±0.39, coefficient variation of 2.43％ and the orange pulp recovery of 97.26％(n=10), standed deviation of ±0.51, coefficient variation of 3.56％ are given.更多还原