Preparation of matrix reference material for quality assurance and control of pesticides analysis in olive oil
| Autor: | Ibrahim F. Tahoun, Adel B. Shehata, Randa N. Yamani |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Pesticide residue
Waste management business.industry General Chemical Engineering media_common.quotation_subject 010401 analytical chemistry Comparability General Chemistry Certification 01 natural sciences Food Analysis 0104 chemical sciences 010309 optics Matrix (chemical analysis) Certified reference materials 0103 physical sciences Environmental science Quality (business) Safety Risk Reliability and Quality business Instrumentation Quality assurance media_common |
| Zdroj: | Accreditation and Quality Assurance. 24:297-304 |
| ISSN: | 1432-0517 0949-1775 |
| Popis: | The legislative requirements and the concern about the harmful effects of pesticide residues have encouraged National Institute of Standards to start development of a series of reference materials for food control to meet requirements of the regulatory authorities, improvement of the comparability and the quality of pesticides analysis and monitoring laboratories overall performance on a reliable, systematic and comparable basis. CRMs play a key role in quality control, precision studies, confirmation and validation of test methods. Comparability and the accuracy of the measurement results depend mainly on availability of certified reference materials appropriate for a particular application. This article gives an overview for complete production process of olive oil matrix reference material certified for organochlorine pesticides. A commercially available virgin olive oil was spiked with 23 pesticides in the range of 4 ng/g, and batch of 300 units was prepared. Characterization, stability, within- and between-samples homogeneity were determined according to ISO standards and guides. The results show that matrix reference material prepared under controlled metrologically valid procedures is valuable tool in the food analysis. |
| Databáze: | OpenAIRE |
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