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Formation – Extraction of Ion – Pair Complex [PdI4]-2 and [BiI4]-1 with Codeine Phosphate drug and determination by Molecular Absorption | ||
| Tikrit Journal of Pure Science | ||
| Article 1, Volume 13, Issue 1, 2008, Pages 131-136 | ||
| Author | ||
| Suham Towfig Amine | ||
| Abstract | ||
| This study involves the determination of Codeine Phosphate (CP) drug via the formation of ion association pair with [PdI4]-2 and with [BiI4]-1. The analytical results are as follow : The optimum pH is 3 and,4 reaction time of 20,30 minutes with a ratio of (4/5,3/4ml of organic phase / aqueous phase) , mixing time (2,1.5) minutes , and the percent extracted E% = 98.87,97.43 for one batch extractionThe statistical and other analytical results for the first ion association pair in the concentration range (0.4 – 8) ppm were as follow : The detection limit is 0.008 and 0.0302ppm , molar absorption coefficient is 68427 and 58016 L/mol.cm at 299 and 362 nm respectively The statistical and other analytical results for second ion association the concentration range (0.2 – 5) ppm ; detection limit is 0.031 and 0.029 ppm , molar absorption coefficient is 51539and 42042 L/mol.cm at 290 and 360 nm respectively . This method was applied to Plumocodine syrup with percent recovery not less than 97% and the best solvent is 1,2 – dichloro ethane. | ||
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