An Overview About Recent Advances in Sample Preparation Techniques for Pesticide Residues Analysis in Cereals and Feedstuffs

Zanella, Renato; Prestes, Osmar D.; Friggi, Caroline do Amaral; Martins, Manoel Leonardo; Adaime, Martha B.

doi:10.5772/48752

Cited by 8 publications

(9 citation statements)

References 64 publications

(73 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Here, the tetracyclines are conducted to the detector flow cell through the eluent. The analytical frequency of the flow system of six samples per hour is found to be very low relative to other FIA methods that can analyze between 42 [31] and 52 [36] samples per hour.…”

Section: Automated Spementioning

confidence: 71%

“…Despite advances in the sensitivity of modern analytical instrumentation for the determination of trace contaminants in complex matrices, such as food, a rigorous sample pre-treatment is often required for extracting and isolating the target analytes from the food matrix, and thus, facilitate their determination [31].…”

Section: Analytical Techniquesmentioning

confidence: 99%

“…The choice of sample treatment depends largely on the complexity of the matrix as well as on the selected detection method. Highly sensitive detection methods require careful sample treatment steps; this is because, most often, sensitivity increases in both the target analytes and coextractives, generating unwanted matrix interferences in the analyses [31].…”

Section: Analytical Techniquesmentioning

confidence: 99%

“…Both solvent-minimized and solventless sample pretreatment techniques developed during the last decade are among the pillars of green analytical chemistry. The interest in this green approach is greatly driven by toxicological, environmental and economical concerns [31].…”

Section: Analytical Techniquesmentioning

confidence: 99%

“…Evidently, a large sample size requires more efficient extraction and clean-up techniques than a smaller one; hence, the economic costs of analysis are likely to increase [47]. Extraction methods are usually applied toward the isolation of residue contaminants from a representative sample, whereas clean-up methods are employed with the aim of separating co-extracted matrix components in order to obtain a more purified sample extract [31]. In analytical chemistry, these terms extraction and clean-upare commonly used interchangeably, and are often interdependent.…”

Section: Sample Preparationmentioning

confidence: 99%

See 4 more Smart Citations

An overview of the main foodstuff sample preparation technologies for tetracycline residue determination

Pérez-Rodríguez

Pellerano

Pezza

et al. 2018

Talanta

135

View full text Add to dashboard Cite

Tetracyclines are widely used for both the treatment and prevention of diseases in animals as well as for the promotion of rapid animal growth and weight gain. This practice may result in trace amounts of these drugs in products of animal origin, such as milk and eggs, posing serious risks to human health. The presence of tetracycline residues in foods can lead to the transmission of antibiotic-resistant pathogenic bacteria through the food chain. In order to ensure food safety and avoid exposure to these substances, national and international regulatory agencies have established tolerance levels for authorized veterinary drugs, including tetracycline antimicrobials. In view of that, numerous sensitive and specific methods have been developed for the quantification of these compounds in different food matrices. One will note, however, that the determination of trace residues in foods such as milk and eggs often requires extensive sample extraction and preparation prior to conducting instrumental analysis. Sample pretreatment is usually the most complicated step in the analytical process and covers both cleaning and pre-concentration. Optimal sample preparation can reduce analysis time and sources of error, enhance sensitivity, apart from enabling unequivocal identification, confirmation and quantification of target analytes. The development and implementation of more environmentally friendly analytical procedures, which involve the use of less hazardous solvents and smaller sample sizes compared to traditional methods, is a rapidly increasing trend in analytical chemistry. This review seeks to provide an updated overview of the main trends in sample preparation for the determination of tetracycline residues in foodstuffs. The applicability of several extraction and clean-up techniques employed in the analysis of foodstuffs, especially milk and egg samples, is also thoroughly discussed.

show abstract

Section: Automated Spementioning

confidence: 71%

Section: Analytical Techniquesmentioning

confidence: 99%

Section: Analytical Techniquesmentioning

confidence: 99%

Section: Analytical Techniquesmentioning

confidence: 99%

Section: Sample Preparationmentioning

confidence: 99%

See 3 more Smart Citations