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Determination of some Optimal Conditions for Analyzing the two Organophosphorus Pesticides Dimethoate and Dichlorovos in Greenhouses' Soil in Burj–Islam - Lattakia by HPLC

تحديد بعض الشروط المثلى لتحليل المبيدين الفوسفوريين Dimethoate وDichlorovos في ترب الزراعات المحمية لمنطقة برج اسلام – محافظة اللاذقية باستخدام تقانة HPLC

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 Publication date 2020
  fields Chemistry
and research's language is العربية
 Created by Shamra Editor




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This study was conducted in Lattakia Governorate (Burj Islam Village) to study the level of contamination of the greenhouses soil with the two organic phosphorous pesticides Dimethoate and Dichlorovos. The optimal wavelength was determined for the analysis of both pesticides using High Performance Liquid Chromatography (HPLC) technology with UV/DAD detector. According to the results, the optimal wavelength for the analysis of Dimethoate is 200 nm, while it was 195 nm for the analysis of Dichlorovos. The recovery of Dimethoate was estimated at wavelength 200 nm which was 101.33 ± 3.868 and for dichlorvos at wavelength 195 nm when it was 98.995 ± 2.078. The results also showed that the greenhouses soil were contaminated with the residues of both pesticides, Dimethoate was detected in concentrations between (0.839 - 2.668) ppm, while Dichlorovos concentrations were between (10.046 - 44.359) ppm, indicating extensive use of both especially Dichlorovos, whose concentrations were higher than Dimethoate's in the studied sites.


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Research summary
أجريت هذه الدراسة في محافظة اللاذقية (قرية برج إسلام) بهدف دراسة مستوى تلوث تربة الزراعات المحمية بمبيدين هما Dimethoate وDichlorovos من مجموعة المبيدات الفوسفورية العضوية. تم تحديد طول الموجة المناسب لتحليل كل من المبيدين باستخدام تقانة الكروماتوغرافيا السائلة عالية الأداء (HPLC) المزودة بكاشف UV/DAD. بينت النتائج أن طول الموجة المناسب لتحليل مبيد الـDimethoate هو 200 نانومتر، بينما كان طول الموجة المناسب لتحليل مبيد Dichlorovos هو 195 نانومتر. كما أظهرت الدراسة أن تربة الزراعات المحمية ملوثة بآثار المبيدين، حيث وُجد Dimethoate بتراكيز تتراوح بين 0.839 و2.668 جزء في المليون، بينما كانت تراكيز Dichlorovos تتراوح بين 10.046 و44.359 جزء في المليون، مما يدل على الاستخدام المكثف للمبيدين، لاسيما Dichlorovos الذي كان تركيزه أعلى من تركيز Dimethoate في المواقع المدروسة. توصي الدراسة بمراقبة منتجات الزراعات المحمية ووضع حدود لتراكم المبيدات، والمساهمة في إيجاد وسائل زراعية أكثر حماية.
Critical review
دراسة نقدية: تعتبر هذه الدراسة خطوة هامة نحو فهم مدى تلوث التربة بالمبيدات الفوسفورية العضوية في منطقة محددة من سورية. ومع ذلك، يمكن توجيه بعض الانتقادات البنّاءة لتحسين الدراسات المستقبلية. أولاً، كان من الممكن توسيع نطاق الدراسة لتشمل مناطق أخرى من سورية للحصول على صورة أكثر شمولية عن تلوث التربة. ثانياً، لم تتطرق الدراسة إلى تأثيرات هذه المبيدات على صحة الإنسان بشكل مباشر، وهو جانب مهم يجب أخذه بعين الاعتبار. ثالثاً، كان من الأفضل استخدام تقنيات تحليلية إضافية للتأكد من النتائج وزيادة دقتها. وأخيراً، يجب أن تتضمن التوصيات خطوات عملية واضحة يمكن للمزارعين والجهات المعنية اتباعها للحد من استخدام هذه المبيدات.
Questions related to the research
  1. ما هو الهدف الرئيسي من الدراسة؟

    الهدف الرئيسي من الدراسة هو دراسة مستوى تلوث تربة الزراعات المحمية بمبيدين هما Dimethoate وDichlorovos في منطقة برج إسلام بمحافظة اللاذقية.

  2. ما هي التقنية المستخدمة لتحليل المبيدين في الدراسة؟

    تم استخدام تقنية الكروماتوغرافيا السائلة عالية الأداء (HPLC) المزودة بكاشف UV/DAD لتحليل المبيدين.

  3. ما هي تراكيز المبيدين التي تم العثور عليها في التربة؟

    تم العثور على تراكيز Dimethoate تتراوح بين 0.839 و2.668 جزء في المليون، بينما كانت تراكيز Dichlorovos تتراوح بين 10.046 و44.359 جزء في المليون.

  4. ما هي التوصيات التي قدمتها الدراسة؟

    توصي الدراسة بمراقبة منتجات الزراعات المحمية ووضع حدود لتراكم المبيدات، والمساهمة في إيجاد وسائل زراعية أكثر حماية.


References used
FERNANDO,C. Pesticides, environment, and food safety.Food and Energy Security,6.2,2017, 48-60
Alhumwi, M; Amin, y. removal of some pesticides contaminated water by bentonite.Chemistrydepartment, College of Science, Damascus university: Syria 2009, 9-10.(In Arabic)
YADAV, I. C; DEVI, N. L.Pesticides classification and its impact on human and environment.Environmental Science and Engineering.6,2017,140-158
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