吖啶黄催化动力学光度法测定纺织品中的微量甲醛  

Determination of Micro Formaldehyde in Textiles by Catalytic Kinetic Photometry with Acridine Yellow

作　　者：梁恕坤[1] 

机构地区：[1]临沂大学实验中心,山东省临沂市通达路18号276005

出　　处：《光谱实验室》2011年第4期1933-1936,共4页Chinese Journal of Spectroscopy Laboratory

摘　　要：在硫酸介质中,甲醛能灵敏地催化溴酸钾氧化吖啶黄褪色,据此建立了一种测定甲醛的催化动力学光度法。在5.0—150.0μg/L范围内,ΔA与甲醛的浓度呈良好的线性关系,线性方程为ΔA=0.0292+0.0084C(μg/L),检出限为0.57μg/L。用于纺织品中甲醛的测定,相对标准偏差小于4.50%,加标回收率为96.6%—102.1%。Formaldehyde can sensitively catalyze the oxidation fading of acridine yellow by potassium bromate in sulfuric acid medium,and a catalytic kinetic photometry for determination of formaldehyde was developed.There was a good linear relationship between ΔA and the concentration of formaldehyde in the range of 5.0—150.0μg/L,and the linear equation was ΔA=0.0292＋0.0084C（μg/L） with the detection limit of 0.57μg/L.The method was used for the determination of formaldehyde in textiles,and the relative standard deviation was less than 4.50% with recovery of 96.6%—102.1%.

关 键 词：吖啶黄 催化动力学光度法 甲醛 

分 类 号：O657.32[理学—分析化学]