荧光分光光度法与直接分光光度法测定饮用水中挥发酚

Determination of volatilizable phenol in drinking water by fluorescence spectrophotometry and direct spectrophotometric method

目的:用4-氨基安替吡啉直接分光光度法、荧光分光光度法两种方法测定水中挥发酚,并做了方法比较。方法:使用此两种方法分别测定样品及标准中的挥发酚的含量,比较其相关系数、线性范围、回收率与检出限。结果:以上两种方法的相关系数都为0.9997,线性范围都为0 mg/L～2.00 mg/L,平均回收率分别为101%、100%,检出限分别为0.013 mg/L、0.004 mg/L。结论:荧光分光光度法有很好的精密度与准确度,方法简单且试剂毒性小,适合检验受到污染的饮用水样品。

Objective： 4-amino-antipyrine direct spectrophotometric method and fluorescence spectrophotometry for determination of volatilizable phenol in drinking water were carried out and compared.Methods：The volatilizable phenol was detected in samples of drinking water and standardized items were determined with the two methods for comparison of the correlation coefficient,linear range,detection limits,average recovery ratio.Results：For the 2 methods,the correlation coefficients were both 0.9997;the linear ranges were both 0 mg/L^2.00 mg/L;the average recovery rates were 101%,100%;the detection limits were 0.013 mg/L,0.004 mg/L.Conclusion： Fluorescence spectrophotometry with high precision and acccuracy should be good choice for detection of volatilizable phenol in drinking water.