The Coated-Wire Ion Selective Electrode (CWISE) of Chromate Using PVC-Membrane Based on Chitosan as A Carrier
Dedeh Kurniasih, Atikah Atikah, Hermin Sulistyarti
J. Pure App. Chem. Res. Vol 1, No 1 (2012), pp. 33-40
Submitted: October 02, 2012     Accepted: October 02, 2012     Published: December 01, 2012
DOI: http://dx.doi.org/10.21776/ub.jpacr.2012.001.01.104

Abstract



A coated-wire ion selective electrode (CWISE) based on chitosan as a carrier for detection of chromate, was developed. CWISE has easy measurement for field analysis, good selectivity and sensitivity. The CWISE’s membrane consist of mixture an active material of chitosan, aliquat 336-chromate, polyvinylchloride (PVC) and dioctylphtalate (DOP) as plasticizer = 4:0.5:35:60.5 (% w/w) dissolved in tetrahydrofuran (THF) solvent (1:3 w/v). The electrode exhibited a good Nernstian slope of 29.77±0.03 mV/decade and a linear concentration range from 10-6 to 10-1 M for chromate. The limit of detection was 1.862 x 10-6 M. It had response time of 20 – 40 sec, and could be used for 49 days. This chromate selective-electrode was found more selective towards the chromate ion than other anions, useable in pH range of 5.0 – 9.0 and temperature of 20 – 50 oC. It was applied as an electrode for direct determination of chromate in water samples and their result compared to standard spectrophotometric method.


Keywords : Coated-wire ion selective electrode (CWISE), chromate ion, chitosan membrane, water samples
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References


[1] Slamet., S, Riyadi., D, Danumulyo, Makara Teknologi, 2003, 7(1), 27-32.


[2] Palmer, C.D. and Wittbrodt, P.R., Environ. Health Perspect., 1991, 92, 25-40.


[3] Puhlmann, P., Pretsch, E. and Bakker, E. Chem. Rev., 1998, 98, 1593-1681.


[4] Singh, A.K., Ponwar, A., Kumar, S. and Baniwal, S., Analyst, 1999, 124, 521-527.


[5] Srinivasan, K. and Rechnitz, G.A., Anal. Chem., 1969, 41, 1203-1208.

[6] Tavakkoli, N. and Shamsipur, M., Anal. Lett., 1996, 29, 2269-2273.


[7] Bailey, P. L., Analysis With Ion-Selective Electrodes, 1976, 26. Heyden and Sons, New York.


[8] Atikah, Sulistyarti, H., Budi, W., and Sumarlina, L., Potentiometric PVC Membrane Sensor for Thiocyanate Based on Chitosan as a Carrier in A Coated-Wire Membrane Electrode. 3rd International Conferences and Workshop on Basic and Applied Sciences, 2011, 1.


[9] Zulkarnaen. (2012). The Construction and Characterization Coated-Wire Selective Electrode of Dichromate Based on Chitosan (Pembuatan Dan Karakterisasi Elektroda
Selektif Ion (ESI) Bikromat Tipe Kawat Terlapis Berbasis Kitosan). Tesis, University of Brawijaya : Malang, 2012, 63


[10] Ardakani, M.M., Dastanpour, A., and Niasari, M.S., Microchim. Acta, 2005, 150, 67-72.


[11] Ardakani, M.M., Sadeghi, A., and Niasari, M.S., Scientia Iranica, 2008, 15(4), 444-451.


[12] Ardakani, M.M., Highly Selective Lead (II) Membrane Electrode Based on New Oxim Phenyl 2-Keto Methyl Quinoline (OPKMQ). Dept of Chem., 2008, 49, 228-230.


[13] Gea, S., The Construction and Characterization of PB2+–Chitosan Membrane as a Chemical Sensor (Pembuatan dan Karakterisasi Membran Pb2+ - Kitosan Sebagai Sensor
Kimia). Master Thesis, Magister PPs Universitas Sumatera Utara, Medan, 2000, 35.


[14] Kamata, S., Bhal, A., Fakunaga, Y. and Marata, A., Anal. Chem., 1988, 60, 2464-2467.


[15] Zanjanchi, M. A., A. Arvand, M. Akbari, K. Tabatabeian and G. Zaraci., Sensor. Actuat. B-Chem., 2006, 113, 304-309.


[16] Ramsey, J.D., Xia L., Kendig, M.W., and McCreery, R.L., Corros. Sci., 2000, 43, 1557-1572.


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