Analytical methods applied to the determination of pesticide residues in foods of animal origin. A review of the past two decades

Determination of Organochlorine Pesticides in Wildlife Liver and Serum Using Gas Chromatography Tandem Quadrupole Mass Spectrometry

“…Neat standards in pure solvent were prepared to examine matrix effects. Matrix may enhance the signal of a compound due to the binding of active sites in the inlet and chromatography column leading to higher amounts of analyte reaching the detector and producing significant increases in recovery [5,21,22]. The effects were apparent in serum samples with an average increase in response of 20.6%.…”

“…Common pesticide extraction methods for a variety of matrices have been the subject of several reviews [3][4][5][6][7]. The QuEChERS extraction method was developed in 2003 by Anastassiades et al in an effort to minimize time and analytical cost associated with multiresidue pesticide analysis in produce [8].…”

Food Analysis: Present, Future, and Foodomics

“…One of the main topics is the case of contaminants in foods whose analysis is a must for ensuring human exposure to noxious residues though diet does not exceed acceptable levels for health. As mentioned above, the everyday more exigent demands on food safety are bringing about a tremendous development in analytical instruments and methodologies to analyze foodborne pathogens [77] and contaminants [78][79][80], or the effect of food processing on pesticide residues in fruits and vegetables [81]. Good examples of the tremendous work devoted to these issues are the analysis of mycotoxins in foods [82,83], the analysis of other toxin-like compounds as, for instance, sterigmatocystin, a toxic metabolite closely related to aflatoxins, and produced by the fungi Aspergillus nidulans and A. versicolor that has been found in different foods [84].…”

“…As such, there is an important role for the so-called preanalytical sample processing that in this case would include bacterial concentration and purification from the sample matrix as a step preceding detection [144]. In this regard, one analytical challenge that still remains in food safety is to present reliable results with respect to official guidelines, as fast as possible without impairing method properties such as recovery, accuracy, sensitivity, selectivity, and specificity [78]. It is also now under discussion the way in which the toxicity of food chemical contaminants is addressed.…”

Desarrollo de una metodología para el análisis de residuos de plaguicidas en leches mediante cromatografía líquida acoplada a espectrometría de masas

“…Para el caso específico de leches, los principales interferentes corresponden a lípidos, vitaminas y, de manera común, compuestos liposolubles que se encuentran presentes en la leche. Como solución a este inconveniente, se aprovechan diferentes técnicas como la cromatografía de permeación en gel, la EFS, la ELL y más recientemente el uso de adsorbentes como la amina primaria secundaria (APS) o octadecilsilano (C18) (Chung y Chen, 2011;Gilbert-López, García-Reyes y Molina-Díaz, 2009;LeDoux, 2011).…”