基于光谱分析的紫外水质检测技术  

A Novel Technology for Water Quality Testing Based on UV Spectral Analysis

作　　者：赵友全[1] 李玉春[1] 郭翼[1] 顾柏军 杨震[2] 

机构地区：[1]天津市生物药学检测技术重点实验室,天津大学精密仪器与光电子工程学院,天津300072 [2]天津市水务局,天津300074

出　　处：《光谱学与光谱分析》2012年第5期1301-1305,共5页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(11074134);天津市科技支撑项目(10ZCKFSH02200);国家重大科学仪器项目(2011YQ15004008)资助

摘　　要：提供了一种基于紫外可见光谱的水质检测系统,各水样吸光度与COD线性拟合R2均大于0.99,单次测量在1s内。同时提出了光谱直接对比和归一化分析方法以及对应的指标参数。通过对大量的邻苯二甲酸氢钾标准溶液和实际水样的实验验证,采用这些光谱分析方法可将水样进行归类,从数据库中寻找适合待测水体的数学模型,进而提高紫外水质检测技术的泛化能力,同时还能得到其他水质指数。Water pollution control and prevention require that the water quality testing is of real time,online and portability.The presejt paper provides a water detecting system based on UV-visible spectra.The R2 of the linear regression is greater than 0.99 between absorbance and COD of the samples.Single measurement is within 1s.At the same time,two methods were presented for direct comparison and normalization of the spectra and their corresponding indicator parameters.By a large number of experiments with standard solution of the potassium hydrogen phthalate and water samples,we found that these methods can be used to classify samples,find suitable mathematical model of the test water from the database,to improve the universal ability of the UV water testing technology,and get other water quality indices.

关 键 词：水质检测 光谱 吸光度 COD 

分 类 号：X832[环境科学与工程—环境工程] TP27[自动化与计算机技术—检测技术与自动化装置]