Mid-infrared and Raman spectrometry for quality control of pesticide formulations

Armenta, Sergio; Quintás, Guillermo; Garrigues, Salvador; Guárdia, Miguel de la

doi:10.1016/j.trac.2005.03.017

Cited by 52 publications

(16 citation statements)

References 20 publications

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“…[11] Thus, the aim of this study was the development of a FTIR procedure for a fast, accurate, and direct determination of oxadiazon in commercial herbicide formulations that can be used in the quality control of these products and could avoid the application of chromatography procedures that work better for residue analysis than for products containing oxadiazon at percentage level.…”

Section: Introductionmentioning

confidence: 99%

First‐Derivative Fourier‐Transform Infrared Determination of Oxadiazon in Commercial Herbicide Formulations

Moros

Quintás

Armenta

et al. 2008

Spectroscopy Letters

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A Fourier-transform infrared (FTIR) method has been developed for the quantification of oxadiazon in herbicide formulations. The method involves the extraction of the active ingredient by sonication of the samples with CHCl 3 and direct measurement of the peak area values in first-order derivate spectra from 1770 cm 21 to 1774 cm 21 corrected with a baseline point located at 1950 cm 21 and after a 5-point smoothing. A limit of detection (3 s) of 0.03 mg g 21 and a typical relative standard deviation (RSD) of 1.3% were found. Results obtained were comparable with those found by liquid chromatography with UV detection. The proposed method involves a 7-times reduction in solvent consumption and 20-times increase of the sampling throughput compared with the chromatography procedure, and thus, it can be concluded that the proposed method is a sustainable alternative for quality control of commercial pesticide formulations.

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Section: Introductionmentioning

confidence: 99%

First‐Derivative Fourier‐Transform Infrared Determination of Oxadiazon in Commercial Herbicide Formulations

Moros

Quintás

Armenta

et al. 2008

Spectroscopy Letters

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“…The main advantage that FT-Raman presents over FTIR spectrometry is the very weak Raman spectra of glass, water and plastic packaging, which allow direct analysis of samples inside glass bottles or plastic bags without opening the package, thus minimising the risk of contamination. In this article, it is clearly shown that these techniques enable fast, non-destructive, precise and accurate measurements, and thus vibrational spectrometry is a promising tool for analysis in the agrochemical-industry samples (Armenta, 2005). In Brazil, thin-layer chromatography (TLC) is still a common technique used in pesticide identification in forensic toxicological and chemistry laboratories.…”

Section: Forensic Analysis Of Pesticides In Brazilmentioning

confidence: 99%

A Forensic View of Pesticide Poisonings in Brazil

Sabino¹,

Rozenbaum²,

Oliveira³

2011

Pesticides in the Modern World - Effects of Pesticides Exposure

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“…It had already been used in quality control of pesticide formulations [15]. Tianfeng Xu developed a method to detect chlorpyrifos on apples through Raman spectroscopy technology [16]. And now Raman technology have been a fast, accurate method for non-destructive detection and in several cases in-situ method for detection of various materials is gaining its importance in agricultural application as well [17].…”

Section: Introductionmentioning

confidence: 99%

A Correction Method of Mixed Pesticide Content Prediction in Apple by Using Raman Spectra

Peng

Qin

et al. 2019

Applied Sciences

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In the study, a new correction method was applied to reduce error during Raman spectral detection on mixed pesticide residue in apples. Combined with self-built pesticide residues detection system by Raman spectroscopy and the application of surface enhancement technology, rapid real-time qualitative and quantitative analysis of deltamethrin and acetamiprid residues in apples could be applied effectively. In quantitative analysis, compared with the intensity value of characteristic peaks of single pesticide with same concentration, the intensity value of characteristic peaks of the two pesticides decreased after mixing the pesticides, which affected the results severely. By comparing the difference in the intensity of characteristic peaks of single and mixed pesticides, a correction method was proposed to eliminate the influence of pesticides mixture. Characteristic peak intensity values of gradient concentration pesticide from 100 mg·kg−1 to 10−3 mg·kg−1 and Lagrangian interpolation were applied in the correction method. And a smooth surface was applied to describe the correction coefficient of characteristic peak intensity. Through detecting the characteristic peak intensity values of the mixed pesticide, correction coefficient would be obtained. Then real values of the peak intensity of pesticides and the content of each component of the mixed pesticide would be acquired by the correction method. Correlation coefficient of model validation exceeded 0.88 generally and Root Mean Square Error also decreased obviously after correction, which proved the reliability of the method.

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Mid-infrared and Raman spectrometry for quality control of pesticide formulations

Cited by 52 publications

References 20 publications

First‐Derivative Fourier‐Transform Infrared Determination of Oxadiazon in Commercial Herbicide Formulations

First‐Derivative Fourier‐Transform Infrared Determination of Oxadiazon in Commercial Herbicide Formulations

A Forensic View of Pesticide Poisonings in Brazil

A Correction Method of Mixed Pesticide Content Prediction in Apple by Using Raman Spectra

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