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Journals / Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi / 2026 / Cilt: 8 Sayı: 1

Method Development and Validation for the Determination of Pesticide Residues in Water by GC-NPD

Sudaki Pestisit Kalıntılarının Belirlenmesi için GC-NPD Kullanılarak Method Geliştirilmesi ve Validasyonu

Bahar Bayrak0000-0003-1503-2841
Pages
133–141
Publication Date
2018-03-31
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The developed method is suitable for routine application in water samples in accordance with the validation data and the parameter as the high sample throughput and cost effective.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:A multi-residue method was developed for the determination of organophosphorous pesticides and Herbicide by liquid-liquid extraction (LLE) and followed by gas chromatography-nitrogen-phosphorus detector (GC/NPD).
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Key Findings & Data:The method is linear over the range 2.5 -25 μg L-1 for eleven pesticides and 5-25 μg L-1 for methamidophos.
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Conclusion & Impact:The developed method is suitable for routine application in water samples in accordance with the validation data and the parameter as the high sample throughput and cost effective.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:Çevre kirliliği · çoklu kalıntı analizleri · GC/NPD

Abstract

A multi-residue method was developed for the determination of organophosphorous pesticides and Herbicide by liquid-liquid extraction (LLE) and followed by gas chromatography-nitrogen-phosphorus detector (GC/NPD). The method was evaluated with respect to the limit of detection and quantification, linearity and accuracy (repeatability, reproducibility, recovery). The method is linear over the range 2.5 -25 μg L-1 for eleven pesticides and 5-25 μg L-1 for methamidophos. Correlation coefficients were higher or equal to 0.992. The limits of detection (LODs) were between 0.67 and 2.23 μg L-1. The limits of quantification (LOQs) ranged from 2.24 and 7.45 μg L-1. Recoveries of fortified water samples in two different concentration levels with 12 organophosphorous pesticides and herbicide were over 95% in high concentration and 80% in low concentration. For repeatability, relative standard deviation (RSD%) ranged between 2.79 and 10.99%, and for reproducibility (RSD%) ranged between 1.56 and 10.36 %. The developed method is suitable for routine application in water samples in accordance with the validation data and the parameter as the high sample throughput and cost effective.

Özet

Organik fosforlu pestisitlerin ve herbisitlerin sıvı-sıvı ekstraksiyonu (LLE) ve ardından gaz kromatografisiazot-

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Cite This Article

Bayrak, B. (2018). Method Development and Validation for the Determination of Pesticide Residues in Water by GC-NPD. Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Cilt: 8 Sayı: 1, 133–141. https://doi.org/10.21597/jist.407860

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