Copyright (c) 2015 AJC
This work is licensed under a Creative Commons Attribution 4.0 International License.
Determination of Iodide, Iodate, Dichromate, Bismuth(III) and Hydrogen Peroxide Through Spot Tests Quantification by Computational Image Scanning Densitometry
Corresponding Author(s) : Rabia Rehman
Asian Journal of Chemistry,
Vol. 27 No. 1 (2015): Vol 27 Issue 1
Abstract
Analytical methods based on image digitization followed by computational quantification have been devised for the micro determination of various ions and compounds which can otherwise be determined by iodometry directly or indirectly. All methods were based on iodometric reactions to produce intense coloured spots of starch-iodine complex which were then determined by image scanning densitometry. A sample aliquot was transferred to a reagent impregnated TLC plate and the colour intensity of the resulting spot was quantified using a flat-bed scanner connected to a computer equipped with especially developed software. The technique has been applied for the determination of various ions in commercial and synthetic samples at micro level through image scanning densitometry. Iodide, iodate, dichromate, bismuth(III) and hydrogen peroxide were successfully determined up to ppm level by the this technique. Effects of the concerned factors have been studied and the precision of method was verified statistically. Standard deviation was calculated to check the precision of the method.
Keywords
Download Citation
Endnote/Zotero/Mendeley (RIS)BibTeX
- C. Radecka and W.L. Wilson, J. Chromatogr. A, 57, 297 (1971); doi:10.1016/0021-9673(71)80043-2.
- E. Malinowska, W. Krzyczkowski, G. Łapienis and F. Herold, Food Res. Int., 43, 988 (2010); doi:10.1016/j.foodres.2010.01.011.
- F. Peter and R.G. Reynolds, J. Chromatogr. B Biomed. Sci. Appl., 143, 153 (1977); doi:10.1016/S0378-4347(00)81820-4.
- V. Esters, L. Angenot, V. Brandt, M. Frederich, M. Tits, C.V. Nerum, J.N. Wauters and P. Hubert, J. Chromatogr. A, 1112, 156 (2006); doi:10.1016/j.chroma.2006.01.035.
- J.M. Nzai and A. Proctor, Food Chem., 63, 571 (1998); doi:10.1016/S0308-8146(98)00043-0.
- S.K. Motwani, R.K. Khar, F.J. Ahmad, S. Chopra, K. Kohli and S. Talegaonkar, Anal. Chim. Acta, 582, 75 (2007); doi:10.1016/j.aca.2006.08.053.
- J. Anwar, U. Waheed-Uz-Zaman, M.U. Shafique and M. Salman, Anal. Lett., 43, 367 (2010); doi:10.1080/00032710903325898.
- M. Salman, M. Athar, U. Waheed-Uz-Zaman, U. Shafique, J. Anwar, R. Rehman, S. Ameer and M. Azeem, Anal. Methods, 4, 242 (2012); doi:10.1039/c1ay05569k.
- M. Salman, R. Rehman and J. Waheed-Uz-Zaman, EJEAFChem., 11, 279 (2012).
- U. Shafique, J. Anwar, M. Salman, A. Waheed-Uz-Zaman, A. Dar, R. Rehman, M. Azeem and S. Ameer, J. Sulfur Chem., 32, 151 (2011); doi:10.1080/17415993.2010.550295.
References
C. Radecka and W.L. Wilson, J. Chromatogr. A, 57, 297 (1971); doi:10.1016/0021-9673(71)80043-2.
E. Malinowska, W. Krzyczkowski, G. Łapienis and F. Herold, Food Res. Int., 43, 988 (2010); doi:10.1016/j.foodres.2010.01.011.
F. Peter and R.G. Reynolds, J. Chromatogr. B Biomed. Sci. Appl., 143, 153 (1977); doi:10.1016/S0378-4347(00)81820-4.
V. Esters, L. Angenot, V. Brandt, M. Frederich, M. Tits, C.V. Nerum, J.N. Wauters and P. Hubert, J. Chromatogr. A, 1112, 156 (2006); doi:10.1016/j.chroma.2006.01.035.
J.M. Nzai and A. Proctor, Food Chem., 63, 571 (1998); doi:10.1016/S0308-8146(98)00043-0.
S.K. Motwani, R.K. Khar, F.J. Ahmad, S. Chopra, K. Kohli and S. Talegaonkar, Anal. Chim. Acta, 582, 75 (2007); doi:10.1016/j.aca.2006.08.053.
J. Anwar, U. Waheed-Uz-Zaman, M.U. Shafique and M. Salman, Anal. Lett., 43, 367 (2010); doi:10.1080/00032710903325898.
M. Salman, M. Athar, U. Waheed-Uz-Zaman, U. Shafique, J. Anwar, R. Rehman, S. Ameer and M. Azeem, Anal. Methods, 4, 242 (2012); doi:10.1039/c1ay05569k.
M. Salman, R. Rehman and J. Waheed-Uz-Zaman, EJEAFChem., 11, 279 (2012).
U. Shafique, J. Anwar, M. Salman, A. Waheed-Uz-Zaman, A. Dar, R. Rehman, M. Azeem and S. Ameer, J. Sulfur Chem., 32, 151 (2011); doi:10.1080/17415993.2010.550295.