Abstract
A spectrophotometric method is developed for the determination of dissolved tri-n butyl phosphate (TBP) in aqueous streams of Purex process used in nuclear fuel reprocessing. The method is based on the formation of phosphomolybdate with added ammonium molybdate followed by reduction with hydrazine sulphate in acid medium. Orthophosphate and molybdate ions combine in acidic solution to give molybdophosphoric (phosphomolybdic) acid, which upon selective reduction (with hydrazinium sulphate) produces a blue colour, due to molybdenum blue. The intensity of blue colour is proportional to the amount of phosphate. If the acidity at the time of reduction is 0.5 M in sulphuric acid and hydrazinium sulphate is the reductant, the resulting blue complex exhibits maximum absorption at 810–840 nm. The system obeys Lambert–Beer’s law at 830 nm in the concentration range of 0.1–1.0 μg/ml of phosphate. Molar Absorptivity was determined to be 3.1 × 104 L mol−1 cm−1 at 830 nm. The results obtained are reproducible with standard deviation of 1 % and relative error less than 2 % and are in good agreement with those obtained by ion chromatographic technique.
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References
Leroy (1967) ORNL-TR-4344
Geetha R (1996) Indian Chem Eng Congress Dec
Hyder LM (1996) Nucl Technol 16:327
Sege G (1953) HW-28690
Das Biplab, Mondal P, Kumar Shekhar (2011) J Radioanal Nucl Chem 288:641
Dicholkar DD, Patil LK, Gaikar VG, Kumar Shekhar, Kamachi Mudali U, Natarajan R (2011) J Radioanal Nucl Chem 289:545
Krishnamurthy MV, Sampathkumar R (1992) J Radioanal Nucl Chem 166:421
Mamadal S, Kundu D (2005) J Indian Chem Soc 82:1030
Williams KE, Haswell SJ, David AB, Preston G (1993) Analyst 118:245
Krishnamurthy N, Suryanarayana AV (1982) Z Anal Chem 312:548
Christian GD, Feldman FJ (1968) Anal Chem Acta 40:173
Motomizu S, Oshima M (1987) Analyst 112:295
Lamouroux C, Virelizier H, Moulin C, Tabet JC, Jankowski CK (2000) Anal Chem 72:1186–1191
Botker HE, Kimose HH, Helligso P, Nielsen TT (1994) J Mol Cell Cardiol 26:41
Ruiz-Calero V, Galceran MT (2005) Talanta 66:376
Leo ML, Nollet (2007) Handbook of water analysis, p 284
Ali MA, Al-Ani AM (1991) Analyst 116:1067
Kuno Y, Hina T, Akiyama T, Matsui M (1991) J Chromatogr. 537:489
Ishimori T, Veno K (1969) Talanta 16:613
Smeller JM (1995) Analyst 120:207
Borissova R, Mitropolitska E (1979) Talanta 26:543
Hayashi K, Dazuka T, Ueno K (1960) Talanta 4:244
Vincent PG (1985) Talanta 32:93
Motomizu S, Wakimoto T, Toei K (1984) Talanta 31:235
Ganesh S, Velavendan P, Nair BS, Selvi T, Ahmed MK, Geetha R (2009) IGC Report 302
Mahadevaiah MS, Kumar Yogendra, Mansour S, Galil Abdul, Suresha MS, Sathish MA, Nagendrappa G (2007) E J Chemi 4:467
Yathirajan V, Dhamija S (1979) Talanta 24:319
Hughes E (1966) PG-737
Mendham J, Denney RC, Barnes JD, Thomas M (2002) Vogel’s Textbook of Quantitative Chemical Analysis (6th Ed) Longmans London, 473 & 672
Theodore GT (1986) Anal Chem 58:223–229
Burton JD (1971) Water Res 7:294
Bode H (1991) Fresenius J Anal Chem 339:898
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Ganesh, S., Velavendan, P., Pandey, N.K. et al. Spectrophotometric determination of dissolved tri n-butyl phosphate in aqueous streams of Purex process. J Radioanal Nucl Chem 293, 529–533 (2012). https://doi.org/10.1007/s10967-012-1731-0
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DOI: https://doi.org/10.1007/s10967-012-1731-0