Determination of thiophanate-methyl using UV absorption spectra based on multiple linear regression

被引：16
|
作者：
Jiao, L. [1 ,2 ]
Dong, D. [1 ,2 ]
Zheng, W. [1 ,2 ]
Zhao, X. [1 ,2 ]
Zhang, S. [1 ,2 ]
Shen, C. [1 ,2 ]
机构：
[1] Beijing Acad Agr & Forestry Sci, Beijing Res Ctr Intelligent Equipment Agr, Beijing, Peoples R China
[2] Beijing Key & Open Lab Informat Technol Agr, Beijing 100097, Peoples R China
来源：
OPTIK | 2014年 / 125卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Thiophanate-methyl; UV absorption spectra; Multiple linear regression; Related coefficient; CHROMATOGRAPHY-MASS SPECTROMETRY; RESIDUES; GRAPES; WINES;
D O I：
10.1016/j.ijleo.2013.06.012
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
As one worldwide used agent for fungi control in the fruit and vegetable field, thiophanate-methyl has been constituted a significant health risk. To determinate thiophanate-methyl, the method using UV absorption spectra based on multiple liner regression is used. Principal absorption wavelengths related closely with thiophanate-methyl ethanol solution are confirmed through analyzing the absorption spectra of thiophanate-methyl. Utilizing multiple linear regression, mathematical model between absorbance obtained from fourteen absorption wavelengths and thiophanate-methyl concentration is established. The result shows concentrations between the predicted values and measured values are well coincident and the related coefficient is 0.9853 over the concentration range 2-35 ppm. (C) 2013 Elsevier GmbH. All rights reserved.
引用
收藏
页码：183 / 185
页数：3
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