Voltammetric Determination of Ethalfularin on Glassy Carbon Electrode and Nafion-Graphene Modified Glassy Carbon Electrode

Abstract

In this study, the electrochemical behavior of ethalfluraline (ETF), a dinitroaniline group herbicide, on glassy carbon electrode(CKE) and nafion-graphene modified glassy carbon electrode(N-GR /CKE) was investigated by cyclic voltammetry(CV). Voltammetric determination of ETF was examined by differential pulse voltammetry(DPV). Two peaks observed at -0.942V(1st peak current) and -0.768V(2nd peak current) during the potential scan of EFT by DPV method in pH 7 phosphate buffer solution between 0 and -1.5V on CKE and at -0.674 V(1st peak current) and -0.563 V(2nd peak current) during the potential scan on N-GR/CKE. After determining the optimum experimental conditions of ETF on CKE and N-GR /CKE, calibration line, working range, limit of detection(LOD), limit of quantification(LOQ), intra-day and inter-day repeatability were determined. In addition, the interference effect of some cations(Cu2+, Ni2+, Co2+, Ca2+, Pb2+) on N-GR/CKE was also investigated.The results show that EFT can be determined in real samples(water and soil) using CKE and N-GR/CKE.

Keywords

• Ethalfluralin
• Dinitroaniline
• Herbicide
• Nafion-Graphene
• Voltammetry

Camsı Karbon Elektrot ve Nafyon-Grafenle Modifiye Edilmiş Camsı Karbon Elektrot Üzerinde Ethalfluralinin Voltametrik Tayini

Abstract

Bu çalışmada, dinitroanilin grubu bir herbisit olan ethalfluralinin(ETF), camsı karbon elektrot(CKE) ve nafyon-grafenle modifiye edilmiş camsı karbon elektrot(N-GR/CKE) üzerindeki elektrokimyasal davranışı dönüşümlü voltametri (DV) yöntemiyle araştırıldı. ETF'nin voltametrik tayini diferansiyel puls voltametrisi(DPV) yöntemiyle incelendi. ETF'nin DPV yöntemiyle pH 7 fosfat tamponunda 0 ile -1.5 V arasında CKE ile yapılan potansiyel taramasında -0.942V(1.pik akımı),-0.768V (2.pik akımı ); N-GR/CKE ile yapılan potansiyel taramasında ise -0.674 V(1.pik akımı ), -0.563 V (2.pik akımı) görüldü. ETF'nin CKE ve N-GR/CKE üzerindeki optimum deney şartları belirlendikten sonra, kalibrasyon doğrusu, çalışma aralığı, tayin edilebilme sınırı, gözlenebilme sınırı, gün içi ve günler arası tekrar edilebilirlikleri belirlendi. Bunun yanında N-GR/CKE üzerinde ETF’ye etki eden bazı katyonların (Cu2+, Ni2+, Co2+, Ca2+, Pb2+) girişim etkisi incelenmiştir. Elde edilen sonuçlar ETF'nin CKE ve NGR/CKE üzerinde gerçek numunelerde (toprak, su) uygulanabileceğini göstermektedir.

Keywords

• Ethalfluralin
• Dinitroanilin
• Herbisit
• Nafyon-Grafen
• Voltametri

References

1. Abdallah OI, 2020. Simultaneous determination of nine dinitroaniline herbicides in environmental samples using a validated vortex-assisted dispersive liquid–liquid microextraction procedure coupled with GC–MS/MS. Chemical Papers, 1-16.
2. Amir S, Jan MR, Shah J, 2019. Efficient environment friendly method for microextraction of dinitroaniline herbicides using supramolecular solvent. International Journal of Environmental Analytical Chemistry, 1-15.
3. Currie LA, 1999. International Recommendations Offered on Analytical Detection and Quantification Concepts and Nomenclature: Preamble, in Validation of Analytical Methods.
4. Er E, Çelikkan H, Erk N, 2016. Highly sensitive and selective electrochemical sensor based on high-quality graphene/nafion nanocomposite for voltammetric determination of nebivolol. Sensors and Actuators B: Chemical, 224:170-177.
5. Gao F, Gao N, Nishitani A, Tanaka H, 2016. Rod-like hydroxyapatite and Nafion nanocomposite as an electrochemical matrix for simultaneous and sensitive detection of Hg2+, Cu2+, Pb2+ and Cd2+. Journal of Electroanalytical Chemistry, 775:212-218.
6. Geim, AK, Novoselov KS, 2010. Therise of graphene. In Nano science and technology: a collection of reviews from nature journals, 11-19.
7. Gerent GG, Santana ER, Martins EC, Spinelli A, 2021. A non-mercury electrode for the voltammetric determination of butralin in foods. Food Chemistry, 343, 128419.
8. Kalambate PK, Sanghavi BJ, Karna SP, Srivastava AK, 2015. Simultaneous voltammetric determination of paracetamol and domperidone based on a graphene/platinum nanoparticles/nafion composite modified glassy carbon electrode. Sensors and Actuators B: Chemical, 213, 285-294.

9. Kang X, Wang J, Wu H, Liu J, Aksay IA, Lin Y, 2010. A graphene-based electrochemical sensor for sensitive detection of paracetamol. Talanta, 81(3): 754-759.
10. Koçak B, Er E, Çelikkan, H, 2015. Stripping voltammetric analysis of dicofol on graphene-modified glassy carbon electrode. Ionics, 21(8): 2337-2344.
11. Laviron E, 1979. General expression of the linear potential sweep voltammogram in the case of diffusion less electrochemical systems. Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 101(1): 19-28.
12. Li J, Guo S, Zhai Y, Wang E, 2009. High-sensitivity determination of lead and cadmium based on the Nafion-graphene composite film. Analytica chimica acta, 649(2), 196-201.
13. Li J, Guo S, Zhai Y, Wang E, 2009. Nafion–graphene nanocomposite film as enhanced sensing platform for ultrasensitive determination of cadmium. Electrochemistry Communications, 11(5): 1085-1088.
14. Lu Y, Liang X, Niyungeko C, Zhou J, Xu J, Tian G, 2018. A review of the identification and detection of heavy metal ions in the environment by voltammetry. Talanta, 178: 324-338.
15. Novoselov KS, Geim AK, Morozov SV, Jiang D, Zhang Y, Dubonos SV, Firsov AA, 2004. Electric field effect in atomically thin carbon films. Science, 306(5696): 666-669.
16. Ntsendwana B, Mamba BB, Sampath S, Arotiba OA, 2012. Electrochemical detection of bisphenol A using graphene-modified glassy carbon electrode. International Journal of Electrochemical Science7(4), 3501-3512.
17. Pumera M, Ambrosi A, Bonanni A, Chng ELK, Poh HL,2010. Graphene for electrochemical sensing and biosensing. TrAC Trends in Analytical Chemistry, 29(9): 954-965.
18. Saidi I, Soutrel I, Fourcade F, Amrane A, Bellakhal N, Geneste F, 2016. Electrocatalytic reduction of metronidazole using titanocene/Nafion®-modified graphite felt electrode. ElectrochimicaActa, 191: 821-831.
19. Shackelford DD, McCormick RW, West SD, Turner LG, 2000. Determination of ethalfluralin in canola seed, meal, and refined oil by capillary gas chromatography with mass selective detection. Journal of Agricultural and Food Chemistry, 48(9): 4422-4427.
20. Thriveni T, Kumar JR, Lee JY, Sreedhar NY, 2009. Study of the voltammetric behaviour of the ethalfluralin and methalpropalin and its determination in environmental matrices at hanging mercury drop electrode. Environmental Monitoring andAssessment, 151(1-4): 9-18.
21. Wang CY, Wang X, Guan J, Hu XY, 2006. Voltammetric determination of meloxicam in pharmaceutical formulation and human serum at glassy carbon electrode modified by cysteic acid formed by electrochemical oxidation of Lcysteine. Sensors,6(9): 1139-1152.
22. West SD, Weston JH, Day JREW, 1988. Gas chromatographic determination of residue levels of the herbicides trifluralin, benefin, ethalfluralin, and isopropalin in soi lwith confirmation by mass selective detection. Journal of theAssociation of Official Analytical Chemists, 71(6): 1082-1085.
23. Xia GH, Shen WJ, Wu B, Lu HY, Zhang R, Shen CY, Bian XH, 2014. Analysis of 7 dinitro aniline residues in complex food matrices by GC–NCI/MS. Chromatographia, 77(5-6): 493-499.
24. Yin H, Zhou Y, Ma Q, Ai S, Ju P, Zhu L, Lu L, 2010. Electrochemical oxidation behavior of guanine and adenine on graphene–Nafion composite film modified glassy carbon electrode and the simultaneous determination. Process Biochemistry, 45(10): 1707-1712.
25. Zhu Y, Murali S, Cai W, Li X, Suk JW, Potts JR, Ruoff, RS, 2010. Graphene and graphene oxide: synthesis, properties, and applications. Advanced Materials, 22(35): 3906-3924.