Mutlu Sönmez ÇELEBİ, Haluk ÖZYÖRÜK, Serdar ABACI

PVF+Cl- Modifiye Platinyum Elektrotlar ile Gümüş İyonlarının Voltametrik Tayini ve Önderiştirmesi

G ümüş I iyonlarının poli vinilferrosenyum /klorür PVF+Cl- ile modifiye edilmiş platin elektrotunda önderiştirilmesi ve diferansiyel puls anodik sıyırma voltametrisi ile tayini çalışıldı. Belirlenen optimum koşullarda 1x10-3 M - 5x10-5 M ve 5x10-6 M - 1x10-8 M derişim aralıklarında iki adet doğrusal kısmı bulunan bir kalibrasyon eğrisi elde edildi. Tayin sınırının 1x10-9 M olduğu yöntem için 1x10-6 M Ag+ çözeltisiyle bağıl standart sapma 9.56 % n = 6 olarak hesaplandı. Ayrıca klorür kompleksleri oluşturduğu bilinen Hg2+, Fe3+ ve Pb2+ iyonları için girişim çalışması yapıldı ve modifiye elektrot, gümüş iyonları eklenmiş çeşme suyunda test edildi

Anahtar Kelimeler:

Poli vinilferrosenyum, Modifiye elektrot, Pt disk elektrot, Gümüş tayini

Preconcentration and Voltammetric Determination of Silver Ions On PVF+Cl- Modified Platinum Electrode

Preconcentration of silver I ions on poly vinylferrocenium /chloride PVF+Cl- modified platinum electrode prior to differential pulse anodic stripping determination of the metal was reported. At the optimum conditions, a calibration curve having two linear parts with different slopes was obtained at the concentration intervals 1x10-3 M – 5x10-5 M and 5x10-6 M – 1x10-8 M. The detection limit was determined as 1x10-9 M. The relative standard deviation was calculated as 9.56 % n = 6 for 1 x 10-6 M Ag+ solution. Interferences of Hg2+, Fe3+ and Pb2+ ions which are capable of forming chloride complexes were examined. The modified electrode was applied to determination of silver ions in spiked water samples.

Keywords:

Poly vinylferrocenium, Modified electrode, Pt disc electrode, Silver determination,

PDF

___

1. R. Eisler, Silver Hazards to Fish, Wildlife and Invertebrates: A Sypnotic Review, Contaminant Hazard Reviews Report (Biological Report 32, September 1996), Patuxent Wildlife Research Center U.S. National Biological Service.
2. T. Madrakian, A. Afkhami, M.A. Zolfigol, M. Solgi, Separation, preconcentration and determination of silver ion from water samples using silica gel modified with 2,4,6-trimorpholino-1,3,5-triazin, J. Hazard. Mater., B128 (2006) 67-72.
3. J.L. Manzoori, H. Abdolmohammad-Zadeh, M. Amjadi, Ultra-trace determination of silver in water samples by electrothermal atomic absorption spectrometry after preconcentration with a ligand-less cloud point extraction methodology, J. Hazard. Mater., 144 (2007) 458-463.
4. M. Soylak, R.S. Cay, Separation/preconcentration of silver (I) and lead (II) in environmental samples on cellulose nitrate membrane filter prior to their flame atomic absorption spectrometric determinations, J. Hazard. Mater., 146 (2007) 142-147.
5. P. Biparva,M. R. Hadjmohammadi, Selective Separation/Preconcentration of Silver Ion in Water by Multiwalled Carbon Nanotubes Microcolumn as a Sorbent, Clean – Soil, Air, Water 39 (2011) 1081–1086.
6. L. Wang, A.N. Liang, H.Q. Chen, Y. Liu, B. Qian, J. Fu, Ultrasensitive determination of silver ion based on synchronous fluorescence spectroscopy with nanoparticles, Anal. Chim. Acta, 616 (2008) 170-176.
7. M. Soylak, R.S. Cay, Separation/preconcentration of silver (I) and lead (II) in environmental samples on cellulose nitrate membrane filter prior to their flame atomic absorption spectrometric determinations, J. Hazard. Mater., 146 (2007) 142-147.
8. C Yu,, J. Zhang, M. Dingc and L Chen, Silver(I) ion detection in aqueous media based on ‘‘off-on’’ fluorescent probe, Anal. Methods, 4 (2012) 342.
9. F. Wang, R. Nandhakumar, J. H. Moon, K. M. Kim, J. Y. Lee and J. Y., Ratiometric Fluorescent Chemosensor for Silver Ion at Physiological pH, Inorg. Chem. 50 (2011) 2240–2245.
10. X. Zhanga, G. Wang, Luminescent CuS nanotubes as silver ion probes, Spectrochimica Acta Part A 72 (2009) 1071–1075.
11. L. Yang, R.E. Sturgeon, On-line determination of silver in sea-water and marine sediment by inductively coupled plasma mass spectrometry, J. Anal. At. Spectrom., 17 (2002) 88-93.
12. R.K. Katarina, T. Takayanagi, M. Oshima, S. Motomizu, Synthesis of a chitosan-based chelating resin and its application to the selective concentration and ultratrace determination of silver in environmental water samples, Anal. Chim. Acta, 558 (2006) 246-253.
13. G.G. Wallace, Y.P. Lin, Preparation and application of conducting polymers containing chemically active counterions for analytical purposes, J. Electroanal. Chem., 247 (1988) 145-156.
14. P. Li, Z. Gao, Y. Xu, G. Wang, Z. Zhao, Determination of trace amounts of silver with a chemically modified carbon paste electrode, Anal. Chim. Acta, 229 (1990) 213-219.
15. E. Lorenzo, H.D. Abruna, Determination of silver with polymer-modified electrodes, J. Electroanal. Chem., J. Electroanal. Chem., 328 (1992) 111-125.
16. Y.H. Li, H.Q. Xie, F.Q. Zhou, Alizarin violet modified carbon paste electrode for the determination of trace silver (I) by adsorptive voltammetry, Talanta, 67 (2005) 28-33.
17. R.K. Shervedani, M.K. Babadi, Application of 2-mercaptobenzothiazole self-assembled monolayer on polycrystalline gold electrode as a nanosensor for determination of Ag(I), Talanta, 69 (2006) 741-746.
18. H. Zejli, J.L. Hidalgo-Hidalgo de Cisneros, I. NaranjoRodriguez, K.R. Temsamani, Stripping voltammetry of silver ions at polythiophene-modified platinum electrodes, Talanta, 71 (2007) 1594-1598.
19. A. Mohadesi, M.A. Taher, Stripping voltammetric determination of silver (I) at carbon paste electrode modified with 3-amino-2-mercapto quinazolin-4(3H)- one, Talanta, 71 (2007) 615-619.
20. F. D’Eramo, J.J. Silber, A.H. Arevalo, L.E. Sereno, Electrochemical detection of silver ions and the study of metal-polymer interactions on a polybenzidine film electrode, J. Electroanal. Chem., 494 (2000) 60-68.
21. F.Y. Song, K.K. Shiu, Preconcentration and electroanalysis of silver species at polypyrole film modified glassy carbon electrodes, J. Electroanal. Chem., 498 (2001) 161-170.
22. D.W.M. Arrigan, Voltammetric determination of trace metals and organics after accumulation at modified electrodes, Analyst, 119 (1994) 1953-1966.
23. M. Sönmez Çelebi, H. Özyörük, A. Yıldız, S. Abacı, Determination of Hg2+ on poly(vinylferrocenium) (PVF+)-modified platinum electrode, Talanta 78 (2009) 405–409.
24. F. Kuralay, A. Erdem, S. Abacı, H. Özyörük, Electrochemical characterization of redox polymer modified electrode developedfor monitoring of adenin, Colloids and Surfaces B: Biointerfaces 105 (2013) 1– 6.
25. F. Kuralay, A. Erdem, S. Abacı, H. Özyörük, A. Yıldız, Characterization of redox polymer based electrode and electrochemical behavior for DNA detection, Anal Chim Acta, 643 (2009) 83–89.
26. F. Kuralay, H. Özyörük, A. Yıldız, Potentiometric enzyme electrode for urea determination using immobilized urease in poly(vinylferrocenium) film, Sensors and Actuators B 109 (2005) 194–199.
27. E. Turkmen, S. Z. Baş, H. Gulce, S. Yildiz, Glucose biosensor based on immobilization of glucose oxidase in electropolymerized poly(o-phenylenediamine) film on platinum nanoparticles-polyvinylferrocenium modified electrode, Electrochimica Acta 123 (2014) 93–102.
28. B.C. Özer, H. Özyörük, S.S. Çelebi, A. Yıldız, Amperometric enzyme electrode for free cholesterol determination prepared with cholesterol oxidase immobilized in poly(vinylferrocenium) film, Enzyme and Microbial Technology 40 (2007) 262–265.
29. M. Gündoğan-Paul, S.S. Çelebi, H. Özyörük, A. Yıldız, Amperometric enzyme electrode for organic peroxides determination prepared from horseradish peroxidase immobilized in poly(vinylferrocenium) film, Biosensors and Bioelectronics 17 (2002) 875-881.
30. G. Aydın, S.S. Çelebi, H. Özyörük, A. Yıldız, Amperometric enzyme electrode for L(þ)-lactate determination using immobilized L(þ)-lactate oxidase in poly(vinylferrocenium) film, Sensors and Actuators B 87 (2002) 8–12.
31. C. Aso, T. Kunitake, T. Nakashima, Cationic polymerization and copolymerization of vinylferrocene, Macromol. Chem., 124 (1969) 232-239.
32. D.D. Perrin, W.L.F. Armarego, D.R. Perrin, Purification of Laboratory Chemicals, Pergamon Press, 1980.
33. P.J. Peerce, A.J. Bard, Polymer films on electrodes: Part II. Film structure and mechanism of electron transfer with electrodeposited poly(vinylferrocene), J. Electroanal. Chem., 112 (1980) 97-115.
34. H. Gülce, H. Özyörük, A. Yıldız, Electrochemical Response of Poly(vinylferrocenium)-Coated Pt Electrodes to Some Anions in Aqueous Media, Electroanal., 7 (1993) 178-183.