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KMID : 0370219870310020045
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Yakhak Hoeji
1987 Volume.31 No. 2 p.45 ~ p.51
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Spectrophotometric Determination of Ion Pair Extraction of Quaternary Amines with Methyl Orange
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최종환/Choi JH
김영수/Kim YS
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Abstract
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Methyl orange(MO) and cetyltrimethylammonium bromide(CTA) were mixed and added to 10ml of the buffer solution and then the solution was shaken for 5 minutes. The maximum absorption wavelength of the reaction product was 419nm. Dichloromethane was the best extracting solvent among the several organic solvents and the most suitable pH range was 2-8. When the CTA-MO calibration curve was made in the best experimental condition, the Lambert-Beer’’s law was obeyed in the range of CTA concentration of 1.5 X 10-5-1.0 X 10-4M by UV spectrophotometer. This method was possible to determine quaternary ammonium salts in the pharmaceutical preparations.
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