Application of electrochemically modified sensor for the detection of fungicide famoxadone / (Record no. 169122)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 06242namaa22004211i 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OSt |
| 005 - أخر تعامل مع التسجيلة | |
| control field | 20250223033333.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 241130s2023 |||a|||f m||| 000 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloguing agency | EG-GICUC |
| Language of cataloging | eng |
| Transcribing agency | EG-GICUC |
| Modifying agency | EG-GICUC |
| Description conventions | rda |
| 041 0# - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| Language code of summary or abstract | eng |
| -- | ara |
| 049 ## - Acquisition Source | |
| Acquisition Source | Deposit |
| 082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 543 |
| 092 ## - LOCALLY ASSIGNED DEWEY CALL NUMBER (OCLC) | |
| Classification number | 543 |
| Edition number | 21 |
| 097 ## - Degree | |
| Degree | M.Sc |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Local Call Number | Cai01.12.08.M.Sc.2023.Ab.A |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Authority record control number or standard number | Abdelaziz Hassan Ragab Abdelaziz, |
| Preparation | preparation. |
| 245 10 - TITLE STATEMENT | |
| Title | Application of electrochemically modified sensor for the detection of fungicide famoxadone / |
| Statement of responsibility, etc. | by Abdelaziz Hassan Ragab Abdelaziz ; supervisors Prof. Dr. Faten Ahmed Nour El-Dien, Prof. Dr. Hussein Mahmoud Fahmy. |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | / تطبيق محس معدل كهروكيميائيا لتقدير مبيد الفطريات فامكسادون |
| 264 #0 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE | |
| Date of production, publication, distribution, manufacture, or copyright notice | 2023. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 124 pages : |
| Other physical details | illustrations ; |
| Dimensions | 25 cm. + |
| Accompanying material | CD. |
| 336 ## - CONTENT TYPE | |
| Content type term | text |
| Source | rda content |
| 337 ## - MEDIA TYPE | |
| Media type term | Unmediated |
| Source | rdamedia |
| 338 ## - CARRIER TYPE | |
| Carrier type term | volume |
| Source | rdacarrier |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.)-Cairo University, 2023. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE | |
| Bibliography, etc. note | Bibliography: pages 106-124. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | In this work, the synthesis and optimization of an electrochemical sensor based on gold nanoparticles (AuNPs)/ conducting poly Congo red dye (poly(CR)) nanocomposite is reported and applied for detection and micro determination of the Oxazolidinone fungicide famoxadone (FAM), which is considered as an environmentally hazardous material on excessive uncontrolled application. The modification of glassy carbon electrode (GCE) was performed using cyclic voltammetry (CV) technique, to deposit poly(CR) at a potential window -0.2 – 1.5 V and scan rate 0.1 V/s for 10 cycles, then chronoamperometry technique was applied for electrodeposition of AuNPs at constant potential -0.4 V for 120 s. The modified sensor was characterized electrochemically using Cyclic Voltammetry (CV) and electrochemical impedance spectroscopy (EIS) to investigate the nature of charge transfer upon modification. The topography of the sensor was characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM) and energy dispersive X-ray spectroscopy (EDX). The prepared and well characterized sensor has been applied for micro determination of FAM in two linear ranges 0.001 - 1 µM (0.37 - 374.40 µg/L) and 3 - 100 µM (1.12 - 37.44 mg/L) were recorded using AuNPs/poly (Congo Red)/GCE sensor for FAM with limit of detection (LOD) of 0.17 nM (0.06 µg/L) and limit of quantification (LOQ) of 0.48 nM (0.18 µg/L). The tested sensor showed good stability, reproducibility, and repeatability, in addition, sufficient selectivity towards FAM in presence of other tested pesticides. Finally, the fabricated sensor was applied for the determination of FAM in vegetable and formulation samples, with recovery range 98.9 - 105.4% and RSD 0.70 - 4.46%. Thus, this approach can be efficiently applied in regulatory authorization for tracing the FAM concentration, being very simple, portable, cost effective and easy to operate compared to chromatographic detection, thus allows fast decisions for regulatory authorities |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | في هذا العمل ، تم الإبلاغ عن تخليق وتحسين مستشعر كهروكيميائي على أساس جزيئات الذهب النانوية (AuNPs) / موصلة صبغة كونغو حمراء متناهية الصغر (بولي (CR)) وتطبيقها للكشف عن مبيد الفطريات فاموكسادون (FAM) ، والذي يعتبر كمادة خطرة على البيئة عند الاستخدام المفرط غير الخاضع للرقابة. تم توصيف المستشعر المعدل كهربائيا باستخدام مقياس الفولتميتر الدوري (CV) والتحليل الطيفي للمقاومة الكهروكيميائية (EIS) للتحقق من طبيعة نقل الشحنة عند التعديل. أيضًا ، تميزت تضاريس المستشعر بالمسح المجهري الإلكتروني (SEM) ، والفحص المجهري للقوة الذرية (AFM) والتحليل الطيفي للأشعة السينية المشتتة للطاقة (EDX). تم تسجيل نطاقين خطيين 0.001 - 1 ميكرومتر (0.37 - 374.40) ميكروغرام / لتر و3-100 ميكرومتر (1.12 - 37.44) مجم / لتر باستخدام جزيئات الذهب النانوية / بولي (الكونغو الأحمر) / مستشعر GCE لـ FAM مع حد الكشف(LOD) 0.17 نانومتر (0.06 ميكروغرام / لتر) وحد القياس الكمي (LOQ) البالغ 0.48 نانومتر (0.18 ميكروغرام / لتر). أظهر المستشعر الذي تم اختباره ثباتًا جيدًا وإمكانية التكاثر والتكرار ، بالإضافة إلى انتقائية كافية تجاه FAM في وجود مبيدات آفات أخرى تم اختبارها. أخيرًا ، تم تطبيق المستشعر المصطنع لتقدير FAM في عينات الخضروات والتركيبات ، مع نطاق استرداد (98.9 - 105.4٪) و الانحراف المعياري النسبي (0.70 – 4.46٪) و وبالتالي ، يمكن تطبيق هذا النهج بكفاءة في الإذن التنظيمي لتتبع تركيز FAM ، كونه بسيطًا جدًا ومحمولًا وفعالًا من حيث التكلفة وسهل التشغيل مقارنة بالكشف الكروماتوغرافي ، وبالتالي يسمح باتخاذ قرارات سريعة للسلطات التنظيمية. |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Issues CD | Issues also as CD. |
| 546 ## - LANGUAGE NOTE | |
| Text Language | Text in English and abstract in Arabic & English. |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Analytical chemistry |
| Source of heading or term | qrmak |
| 653 #0 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Electropolymerization |
| -- | famoxadone |
| -- | poly(Congo Red) |
| -- | gold nanoparticles |
| -- | modified electrodes |
| -- | environmental analysis |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Faten Ahmed Nour El-Dien |
| Relator term | thesis advisor. |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Hussein Mahmoud Fahmy |
| Relator term | thesis advisor. |
| 900 ## - Thesis Information | |
| Grant date | 01-01-2023 |
| Supervisory body | Faten Ahmed Nour El-Dien |
| -- | Hussein Mahmoud Fahmy |
| Universities | Cairo University |
| Faculties | Faculty of Science |
| Department | Department of Chemistry |
| 905 ## - Cataloger and Reviser Names | |
| Cataloger Name | Shimaa |
| Reviser Names | Huda |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Thesis |
| Edition | 21 |
| Suppress in OPAC | No |
| Source of classification or shelving scheme | Home library | Current library | Date acquired | Inventory number | Full call number | Barcode | Date last seen | Effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | قاعة الرسائل الجامعية - الدور الاول | 30.11.2024 | 89382 | Cai01.12.08.M.Sc.2023.Ab.A | 01010110089382000 | 30.11.2024 | 30.11.2024 | Thesis |