Evaluation of different calibration approaches in pesticide residues analysis in non-fatty food using fast GC-MS

Hercegová, Andrea; Húšková, Renáta; Matisová, Eva

doi:10.1080/03067310902871281

Cited by 16 publications

(10 citation statements)

References 23 publications

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“…A challenge would be to demonstrate the same capabilities for more complex matrices as fruits and vegetables. It is well known that limitations of single quadrupole are more evident when complex matrices are analyzed, especially due to the matrix effects (Hercegová et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Application of Fast Gas Chromatography–Mass Spectrometry in Combination with the QuEChERS Method for the Determination of Pesticide Residues in Fruits and Vegetables

et al. 2012

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Section: Introductionmentioning

confidence: 99%

Application of Fast Gas Chromatography–Mass Spectrometry in Combination with the QuEChERS Method for the Determination of Pesticide Residues in Fruits and Vegetables

et al. 2012

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“…According to experience in our laboratory, apples are good representative of high sugar and high water content commodities. Therefore, they are used for the preparation of matrix-matched standards [11,27].…”

Section: Samplesmentioning

confidence: 99%

Survey of low-level endocrine disrupting pesticides in food matrices in Slovakia

Hrouzková

Matisová

Andraščíková

et al. 2012

International Journal of Environmental Analytical Chemistry

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The search on endocrine disrupting chemicals (EDCs) in non-fatty food was evaluated. A fast, high-throughput, accurate, multiresidue method for the analysis of selected EDC pesticides in fruit and vegetable food samples was developed. The QuEChERS technique was used for sample preparation. Fast GC-MS was performed with a narrow-bore capillary column and a quadrupole benchtop detector with electron ionization (EI) and negative chemical ionization (NCI). A part of the work was devoted to the comparison of NCI versus EI approach concerning the sensitivity of detection and to the study of selectivity enhancement in NCI mode. Matrix-matched standard solutions were utilized for calibration. The methods validation was performed. Fortification studies at 1, 5, 10 and 250 mg kg À1 for 35 pesticides in EI mode and 0.1, 1, 5 and 250 mg kg À1 for 28 pesticides in NCI mode were performed. Average recoveries for each fortification level ranged from 70 to 110% with 480% of recoveries between 90 and 110%. Limits of quantification (LOQs) were established at 5 mg kg À1 for EI and at 1 mg kg À1 for NCI mode, which is lower than the lowest maximum residue level (MRL) value set by the European Commission in fruit and vegetables. The developed and validated fast GC-MS method was successfully applied to the search of EDC pesticides at ultratrace concentration level in real fruit and vegetable samples in Slovakia. Thirty-four samples of 20 different commodities were analyzed. Seven samples contained residues of three or more EDCs pesticides.

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“…To solve this problem, four types of quantitation methods can be used in pesticide residues analysis to compensate for the matrix effects [ 66 , 67 , 68 ]. For the analysis of EDCs/EDPs the same approaches to eliminate matrix effects in various matrices [ 17 , 41 ] are used: (i) method of standard addition [ 47 , 50 , 58 ]; (ii) use of isotopically labeled internal standards [ 55 , 56 ]; (iii) use of matrix-matched standards [ 45 , 46 , 48 , 49 , 50 ]; and (iv) use of analyte protectants (APs) [ 48 , 49 ]. For matrix-matched standardization the bracketing sequence of samples is recommended for better long term stability.…”

Section: Analysis Of Edpsmentioning

confidence: 99%

“…For matrix-matched standardization the bracketing sequence of samples is recommended for better long term stability. Clean-up of extracts and utilization of retention gap can additionally reduce matrix effects [ 45 , 46 , 48 , 49 , 50 , 69 ].…”

Section: Analysis Of Edpsmentioning

confidence: 99%

Analysis of Endocrine Disrupting Pesticides by Capillary GC with Mass Spectrometric Detection

Matisová

Hrouzková

2012

IJERPH

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Endocrine disrupting chemicals, among them many pesticides, alter the normal functioning of the endocrine system of both wildlife and humans at very low concentration levels. Therefore, the importance of method development for their analysis in food and the environment is increasing. This also covers contributions in the field of ultra-trace analysis of multicomponent mixtures of organic pollutants in complex matrices. With this fact conventional capillary gas chromatography (CGC) and fast CGC with mass spectrometric detection (MS) has acquired a real importance in the analysis of endocrine disrupting pesticide (EDP) residues. This paper provides an overview of GC methods, including sample preparation steps, for analysis of EDPs in a variety of matrices at ultra-trace concentration levels. Emphasis is put on separation method, mode of MS detection and ionization and obtained limits of detection and quantification. Analysis time is one of the most important aspects that should be considered in the choice of analytical methods for routine analysis. Therefore, the benefits of developed fast GC methods are important.

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Evaluation of different calibration approaches in pesticide residues analysis in non-fatty food using fast GC-MS

Cited by 16 publications

References 23 publications

Application of Fast Gas Chromatography–Mass Spectrometry in Combination with the QuEChERS Method for the Determination of Pesticide Residues in Fruits and Vegetables

Application of Fast Gas Chromatography–Mass Spectrometry in Combination with the QuEChERS Method for the Determination of Pesticide Residues in Fruits and Vegetables

Survey of low-level endocrine disrupting pesticides in food matrices in Slovakia

Analysis of Endocrine Disrupting Pesticides by Capillary GC with Mass Spectrometric Detection

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