16Jun 2018

ADSORPTIVE STRIPPING VOLTAMMETRIC DETERMINATION OF ULTRA TRACE COBALT WITH ALIZARIN RED S MODIFIED CARBON PASTE ELECTRODE.

  • Chemistry Department, Faculty of Science, Al-Azhar University, Assiut branch, 71524, Assiut, Egypt.
Crossref Cited-by Linking logo

  • Abstract
  • Keywords
  • References
  • Cite This Article as
  • Corresponding Author

A very sensitive and selective square wave cathodic adsorptive stripping (SWCAS) voltammetric method at modified carbon paste electrode (CPE) for determination of Cobalt(II) has been developed and evaluated. Square wave Cathodic Adsorptive Stripping Voltammetric (SWCASV) mechanism is proposed to interpret the amplified sensitivity. The procedure is based on the interfacial preconcentration of Cobalt (II) ion on Alizarin Red S through a surface coordination effect. The effect of various parameters such as medium, pH, accumulation potential, scan rate, accumulation time and ionic strength were tested to optimize the conditions for the determination of Cobalt(II) ion. The adsorbed form is reduced irreversible at optimal conditions viz; 0.15M Phosphate buffer (pH~9.5). Linear concentration range 2?10-12 - 6?10-11 M (0.00012 ? 0.00354 ng/mL (at 60s, can be determined successfully. The interferences of some common foreign species and some metal ions were studied. The high sensitivity and selectivity of this method were demonstrated by determination of cobalt in human hair and water samples.

  1. Wang J., Analytical Electrochemistry, 2nd edn, Wiley-Vch, New York, 2000.
  2. Bobrowski, A., Zarebbski, J., (2000) Catalytic Systems in Adsorptive Stripping Voltammetry. Electroanalysis 12 (15), 1177-1186.
  3. Gao Z. Siong Siow, K. , (1996)? Catalytic-adsorptive stripping voltammetry of cobalt in the presence of 2,2'-bipyridine and nitrite. Talanta 43: 255-261.
  4. Vega M., van den Berg C.M.G? (1997) Determination of Cobalt in Seawater by Catalytic Adsorptive Cathodic Stripping Voltammetry
  1. Chem 69: 874-881.
  2. Safavi, A., Shams, E (2000) Highly sensitive and selective measurements of cobalt by catalytic adsorptive cathodic stripping voltammetry. Talanta, 51:1117 -1123
  3. Bobrowski, A., Bond, A.M (1991) Catalytic adsorptive stripping voltammetric determination of cobalt as an α‐benzil dioxime complex in the presence of an extremely large excess of zinc. Electroanalysis 3: 157-162.
  4. Donat, J.R., Bruland K. W (1988) Direct determination of dissolved cobalt and nickel in seawater by differential pulse cathodic stripping voltammetry preceded by adsorptive collection of cyclohexane-1,2-dione dioxime complexes Anal. Chem. 60:240-244.
  1. Wang J., Analytical Electrochemistry (2nd Edition), VCH Publishers, inc., New York (1994) 44 -54.
  2. Brainina K. H. and Neyman E., Electroanalytical Stripping Methods, John Wiley and Sons, New York 'l; (1993) 71-120.
  3. Wang J., Stripping Analysis: Principles, Instrumentation and applications, VCH Publishers Inc., Florida, 1985.
  4. Kalvoda R., Adsorptive Stripping Voltammetry in Analytical Chemistry II, (J. Zuka, Ed.), Ellis Horwood, New York, 1996.
  5. Wang J., Electroanalytical Techniques in Clinical Chemistry and Laboratory Medicine, VCH Publishers Inc., New York, (1988) 17-20.
  6. Zaitsev P. M., Salikhdzhanova R. M. and Zaitsev N. K., Indus. Lab Diagno. Mater., 65, (1999), 1-15.
  7. Abu Zuhri A. Z. and Voelter W (1998) Applications of adsorptive stripping voltammetry for the trace analysis of metals pharmaceuticals and biomolecules Fresenius J. Anal. Chem 360 1-9.
  8. Brainina K. H., Malakhova N. A. and Stojko N. Y (2000)? Stripping voltammetry in environmental and food analysis Fresenius J. Anal. Chem 368 307-25.
  1. Alghamdi A. H., areview, J. Saudi Chem Soc., 6, (2002), 185-98.
  2. Vire J. C., Kauffmann J. M. and Patriarche G. J (1989), Adsorptive stripping voltammetry applied to drug analysis: a powerful tool.
  1. Pharma. Biomed. Anal7:1323-35.
  2. Farghaly O.A (2004) a novel method for determination of magnesium in urine and water samples with mercury film-plated carbon paste electrode. Talanta 63 497?501.
  3. Amrallah A.H., Abdalla N.A. and El-Haty (1998)? Mixed ligand complexes of benzimidazole and pyrimidine hydroxy azo dyes with some transition metals and glycine, dl-alanine or dl-leucine.Talanta, 46 (4) 491-500.
  1. Cassandra R. B. C., Aldal?a L. B.M., Edmar P. M., William S.C. and Jiujun Zhang (2006) Ultra Trace Copper Determination by Catalytic-AdsorptiveStripping Voltammetry Using an Alizarin Red S modified Graphite Electrode?? J.Electrochem. Sci 1, 343-353
  2. O. A. Farghaly (2003) Direct and simultaneous voltammetric analysis of heavy metals in tap water samples at Assiut city: an approach to improve the analysis time for nickel and cobalt determination at mercury film electrode?? Microchemical Journal 75 119-131.
  3. [22]- Ali A. M., Farghaly O. A. and Ghandour M. A (2000) Determination of thiopentone sodium in aqueous and biological media by cathodic stripping voltammetry Anal.Chim. Acta 412 99-110.
  4. Farghaly O. A., Abd El-Wadood H. M. and Ghandour M. A (1999) Anodic adsorptive stripping voltammetric determination of the anesthetic drug: methohexital sodium J. Pharm. Biomed.?Anal 21 233-240.
  5. Gelaneh Woldemichael a,Taffa Tulu b , Gerd-Uwe Flechsig (2016) ?Solar UV-treatment of water samples for stripping-voltammetric determination of trace heavy metals in Awash river, Ethiopia
  1. Heliyon 2(3) e00091
  2. Iwona Rutyna?, ?Mieczyslaw Korolczuk (2015) Determination of cobalt by adsorptive stripping voltammetry with double accumulation and stripping steps International Journal of Environmental Analytical Chemistry 95(11) 1042-1053
  1. [26]- Foroozan H.,Hossein T., Masoud F. and Masoumeh (2013)
  2. Trace and selective determination of cobalt(II) in water and salt samples using cathodic adsorptive stripping voltammetry in the presence of Pyrogallol Red J. Serb. Chem. Soc. 78 (5) 717?724
  3. Carlos R., Ver?nica A., Marisol G. and Edgar N (2012) Adsorptive Stripping Voltammetric Determination of Cobalt in the Presence of Nickel and Zinc Using Pyrogallol Red as Chelating Agent? J. Electrochem. Sci. 7: 979 - 990
  4. Mohadesi, E. Teimoori, M. Taher and H. Beitollah (2011) ?????Adsorptive Stripping Voltammetric Determination of Cobalt (II) on the Carbon Paste Electrode International Journal Electrochem Science 6(2) 301- 308.
  5. S. Bahrami, S. Abbasi, Y. A. Ghorbani and A. A. Miran?Beigi (2009)? High sensitive determination of trace amount of cobalt by catalytic adsorptive stripping voltammetry ?Russian J. Electrochem 45(2) 208- 214.
  6. Zhang Hao?,?J-C. Vire?,?G. J. Patriarche?&?R. Wollast (1988) Determination of Cobalt Ions in Natural Waters Using Differential Pulse Adsorptive Stripping Voltammetry Analytical Letters,? 21( 8) 1409 - 1424
  7. Henry A. Schroeder M. DAlexis P. Nason B.A (1969)? Trace Metals in Human Hair ?Journal of Investigative Dermatology ?53(1)? 71-78.

[Ahmed. A. Gahlan. (2018); ADSORPTIVE STRIPPING VOLTAMMETRIC DETERMINATION OF ULTRA TRACE COBALT WITH ALIZARIN RED S MODIFIED CARBON PASTE ELECTRODE. Int. J. of Adv. Res. 6 (Jun). 446-454] (ISSN 2320-5407). www.journalijar.com

Ahmed. A. Gahlan
Chemistry Department, Faculty of Science, Al-Azhar University, Assiut branch, 71524, Assiut, Egypt.

DOI:

Article DOI: 10.21474/IJAR01/7230      
DOI URL: https://dx.doi.org/10.21474/IJAR01/7230

Download Full Paper

Download PDF No. of Downloads: 27 | No. of Views: 122