Development of a Multiresidue Methods for The Simultaneous Determination of Pesticide Residues in Water by GC/Mass Spectrometry

Öz

A Multi-residue methods were developed for the determination of pesticides by liquid-liquid extraction (LLE) and followed by gas chromatographymass spectrometry (GC/Mass).
The method was evaluated with respect to the limit of detection and quantification, linearity and accuracy. For GC/MS, LODs were between 1.27 µg/L and 4.24 µg/L and LOQs were between 4.23 µg/L and 14.15 µg/L. Recoveries were obtained over 96% in high concentration and 92% in low concentration. Repeatabilities were varied from 3.81 to 14.40 (except for simazine) and reproducibilities (RSD%) were varied from 5.81 to17.32.

Anahtar Kelimeler

• Pesticides
• Method validation
• GC/MS

Gaz Kromatografisi/Kütle Spektrometrisi ile Sudaki Pestisit Kalıntılarının Eşzamanlı Olarak Belirlenmesi için Çoklu Kalıntı Metodu Geliştirilmesi

Öz

Sıvı-sıvı ekstraksiyonu (LLE) ve ardından gaz kromatografisi kütle spektrometrisi (GC/MS) ile pestisitlerin tayini için çoklu kalıntı yöntemi geliştirildi. Yöntem; her bir pestisit için nicel tayin sınırı (LOQ) ve belirtme alt sınırı (LOD), doğrusallık ve doğruluk parametrelerine göre değerlendirildi. GC/MS için, LOD değerleri 1.27 μg/L ile 4.24 μg/L arasında ve LOQ değerleri 4.23 μg/L ile 14.15 μg/L arasında elde edildi. Geri kazanımlar, yüksek konsantrasyonda % 96 ve düşük konsantrasyonda % 92 olarak bulundu. Tekrarlanabilirlik (simazin hariç) 3.81 ila 14.40 arasında değişirken, yeniden üretilebilirlik (RSD%) 5.81 ila 17.32 arasında değişmiştir.

Anahtar Kelimeler

• Pestisitler
• Metot validasyonu
• GC/MS

Kaynakça

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