Nonlinear correction of turbidity effect in water quality monitoring by UV-Vis spectroscopy

FANG Ke-hao; ZHAO Ling

doi:10.13873/j.1000-9787(2018)10-0035-03

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Nonlinear correction of turbidity effect in water quality monitoring by UV-Vis spectroscopy

更新时间：2025-09-11

- Nonlinear correction of turbidity effect in water quality monitoring by UV-Vis spectroscopy
- Issue 10, Pages: 35-37(2018)
- 作者机构：
  
  四川师范大学数学与软件科学学院
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-9787(2018)10-0035-03
  CLC： X832;O657.3
- Published：2018
- 稿件说明：
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FANG Ke-hao, ZHAO Ling. Nonlinear correction of turbidity effect in water quality monitoring by UV-Vis spectroscopy[J]. 2018, (10): 35-37.
DOI：

FANG Ke-hao, ZHAO Ling. Nonlinear correction of turbidity effect in water quality monitoring by UV-Vis spectroscopy[J]. 2018, (10): 35-37. DOI： 10.13873/j.1000-9787(2018)10-0035-03.

摘要

基于不同浓度的浊度溶液在紫外—可见光谱各个波长的吸光性进行定量分析

建立非线性模型对化学需氧量(COD)特征波长进行补偿。研究表明:非线性模型精度较高

实验室中配置不同浓度的混合液、结合实际水样进行验证

模型预测数据与实际数据平均相对误差率为0.035

提出的补偿方法在浊度对COD的影响分析中具有较好的精度。

Abstract

Based on determination of the absorbance at different wavelengths of UV-Vis spectra

the nonlinearity model is constructed to compensate the characteristic wavelength of chemical oxygen demand（ COD）. The results show that precision of the nonlinear model is high

the mixed solution of different concentration is set in laboratory

and then the actual water sample is used. The relative error ratio between the model prediction data and the actual data is 0. 035. This compensation method in effect of turbidity on analysis on COD has a good precision.

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