分析与检测

环境中荷尔蒙类化合物2,4-二氯苯酚的紫外光谱法研究及应用

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  • 东华大学环境科学与工程学院, 上海 200051
李金花(1977- ),上海东华大学2001级硕士研究生,研究方向为环境监测与环境评价.E-mail:1i7789@163.net.

收稿日期: 2004-02-10

  修回日期: 2004-02-10

  网络出版日期: 2014-09-30

基金资助

国家自然科学基金资助项目(20277005);东华大学科技发展基金资助项目

Study on the UV spectrophotometry of the hormonic compound 2,4-dichlorophenol in the environment and its application

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  • College of Environmental Science and Engineering, Donghua University, Shanghai 200051, China

Received date: 2004-02-10

  Revised date: 2004-02-10

  Online published: 2014-09-30

摘要

研究了环境中荷尔蒙类化合物2,4-二氯苯酚的紫外吸收光谱,最大吸收峰位于286nm,在该波长下,其吸光度与2,4-二氯苯酚的浓度在一定范围内符合朗伯比耳定律,据此建立了2,4-二氯苯酚的紫外光谱分析法。方法的线性范围5-50mg/L,线性方程为A=0.0125x+0.0158,相关系数r=0.9991,测定质量浓度为20mg/L的2,4-二氯苯酚(n=10)的相对标准偏差为2%,方法的检出限为0.48mg/L。用本方法测定上海市苏州河中的2,4-二氯苯酚含量,结果令人满意,回收率为92.0%-104.5%。

本文引用格式

李金花, 庄惠生 . 环境中荷尔蒙类化合物2,4-二氯苯酚的紫外光谱法研究及应用[J]. 工业水处理, 2004 , 24(5) : 57 -58 . DOI: 10.11894/1005-829x.2004.24(5)..57

Abstract

The UV spectrophotometry of the hormonic compound 2,4-dichlorophenol in the environment has been studied. The maximal absorption peak is 286 nm. In this range its absorbency and the concentration of 2,4-dichlorophenol accord with Lambert-Beer's law. The range of linear relationship between the absorption and the concentration of 2,4-dichlorophenol is 5 ~ 50 mg/L, the linear regression equations for 2,4-dichlorophenol is A = 0.012 5x + 0.015 8(r = 0.999 1). The RSD is 2.0%(20 mg/L 2,4-dichlorophenol, n=10). The detection limit for 2,4-dichlorophenol is 0.48 mg/L. The method has been applied to the detection of 2,4-dichlorophenol in the Suzhou River in Shanghai with satisfactory results. The recovery rate is 92.0% ~ 104.5%.

参考文献

[1] 解天民.水中氯代酚类化合物的直接测定[J].中国环境监测,1987,3(1):147-152
[2] 周逸虹.水和废水中2,4-D,2,4-二氯酚,2,4,6-三氯酚的测定[J].环境监测管理与技术,1995,(3):26-27

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