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SPECTROPHOTOMETRIC DETERMINATION OF SACCHARIN BY COUPLING WITH DIAZOTISED 4-NITROANILINE | ||
| AL-TAQANI | ||
| Article 1, Volume 21, Issue 1, 2008, Pages 72-79 | ||
| Authors | ||
| Thaira Idrees Younis; Suad Yousif Al-Kass | ||
| Abstract | ||
| A spectrophotometric method is described for the determination of saccharin. The Intended reacts with diazotised 4-nitroaniline in alkaline solution to form a stable brown coloured azo dye. The absorbance is measured at 427 nm. Beer’s law is obeyed over the concentration range of 10 200 g of saccharin in a final volume of 25 ml, i.e. , ( 0.4 8 ppm ) with a molar absorptivity of 2.75104 1. mol 1 , cm 1 and Sandell sensitivity index is 0.0088 g. cm2 , a relative error of 0.541 to + 1.851 % and a relative standard deviation of a 0.35 to 2.2 %, depending on the concentration level. Further, the method requires neither temperature control nor solvent extraction | ||
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