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Spectrophotometic Determination of some Sulphonamides in Aqueous Solution Via Azo- Dye Formation Reaction | ||
| Journal of Education and Science | ||
| Article 4, Volume 17, Issue 2, 2005, Pages 32-40 PDF (0 K) | ||
| DOI: 10.33899/edusj.2005.81308 | ||
| Author | ||
| N. S. Othman | ||
| Abstract | ||
| A spectrophotometric method for the determination of trace amounts of some sulphonmides (six compounds) in aqueous solutions is described. The method in based on dizotisation and coupling with pyrogallol to form a yellow coloured, stable and water- soluble azo-dye which shows maximum absorption at 420 nm. Beer's law is obeyed over the concentrations range of 0.4-14 ppm. The relative error is -2.47 to + 3.41 % and the relative standard deviation is ±0.51 to ±2.9% depending on the concentration level. The proposed method has been successfully applied to the determination of sulphacetamide sodium in eye drop drug. | ||
| Keywords | ||
| Spectrophotometric; pyrogallol; sulphacetamide | ||
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