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

页码：183 / 185

页数：3

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