阳离子表面活性剂协同增敏动力学光度法测定消毒液中过氧乙酸  被引量:7

Kinetic spectrophotometry determination of trace peracetic acid in disinfectant solution with synergistic sensitization effect of cationic surfactants

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作  者:李静雅 向晓明[2] 张小林 

机构地区:[1]甘肃医学院,甘肃平凉744000 [2]西北民族大学化工学院

出  处:《中国消毒学杂志》2016年第10期939-941,共3页Chinese Journal of Disinfection

摘  要:目的建立过氧乙酸对铁(Ⅱ)-邻二氮杂菲分光光度法测定微量过氧乙酸的新方法。方法在稀硫酸介质中,过氧乙酸对Fe(Ⅱ)-邻二氮杂菲体系的显色反应有明显的阻抑作用,在510 nm波长处测量阻抑体系吸光度值。结果过氧乙酸浓度在0.05~1.5μg/ml范围内与吸光度递减呈良好的线性关系,检出限0.02μg/ml。结论过氧乙酸对铁(Ⅱ)-邻二氮杂菲分光光度法测定微量过氧乙酸的新方法,用于测定消毒液中过氧乙酸结果满意。Objective To establish the spectrophotometric method of peracetic acid and Iron( II)- Orthophenanthroline system for determination of traces of peracetic acid. Methods In dilute sulphuric acid medium,the chromogenic reaction of peracetic acid and Iron( II)- Orthophenanthroline system had obvious inhibitory effect. So the absorbance value in suppression system was measured in 510 nm wavelength. Results The concentration between 0. 05 ~ 1. 5 g / m L of peracetic acid had good linear relationship with the absorbance decreasing,and the detection limit was 0. 02 μg / ml. Conclusion The new method with Iron( II)- Orthophenanthroline system used in the determination of disinfectant peracetic acid has satisfactory results.

关 键 词:过氧乙酸 Fe(Ⅱ)-邻二氮杂菲体系 动力学光度法 

分 类 号:R187.1[医药卫生—流行病学]

 

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