The use of radiotracer techniques for QA/QC principles in pesticide residue analysis

Avrupa Birliği’ne girme sürecinde olduğumuz şu günlerde tarımsal ürünlerin pestisit kalıntıları yönünden güvenilir olması çok önemlidir. Pestisit kalıntı analiz laboratuvarlarında elde edilen verilerin doğruluğunun ve analiz metodunun geçerliliğinin dokumente edilen delillerle ispatlanması gerekir. Kalite kontrol (QC) ve kalite güvencesi (QA) sistemleri analitik verilerin doğruluğunu kontrol etmede önemli bir araçtır. Bu makalenin amacı QC/QA sisteminde, pestisit etkili madde (e.m.) saflığı/saflaştırılması, örnek işlemenin homojenliği, ekstraksiyon verimi (bağlı kalıntılar), temizleme-arıtma (cleanup), geri alım (recovery) gibi analitik işlemlerde radyoizotop izleme tekniğinin (14C-pestisit) kullanılmasını göstermektir.

Pestisit kalıntı analizlerinde kalite kontrol ve kalite güvencesi prensipleri için radyoizotop izleme tekniğinin kullanımı

Abstract: In the process of Turkish Republic being an EU member, wholesomeness of agricultural products is very important at the pesticide residue concept. The reliability of analytical data produced in the pesticide residue laboratory, and validity of method must be checked with documented evidence. Quality Assurance (QA) and Quality Control (QC) principles are very useful tools for the proving correctness of analytical data. Most of the analytical steps must be controlled in QA/QC system. The purpose of the article reported here was to demonstrate the use of radiotracer technique (14C-pesticide) for some analytical steps such as, the purity/purification of active ingredient, homogenity of sample processing, extraction efficiency (bound residues) cleanup and recovery in QA/QC system.

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