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Spectrophotometric method for the microdetermination of methyl and propyl paraben in some detergents through charge transfer complex | ||
| Iraqi National Journal Of Chemistry | ||
| Article 1, Volume 17, Issue 1, 2017, Pages 87-102 | ||
| Author | ||
| Shatha Y. Yahyaa | ||
| Abstract | ||
| Simple Spectral method was developed to estimate the methyl and propyl paraben through charge- transfer (CT) complexes. The method involves the interaction of parabens compounds with o-chloranil as π-acceptor. Under the optimized conditions, the complexes were found to be absorbed at 415 and 385 nm with in the linearity range of 5-40 and 5-55 μg ml-1 respectively. The molar absorptivity values were in the range 3803.75 and 2342.6 L.mol-1.cm-1 respectively. And the lower limit of detection were in the rang 0.073 and 0.086 µg/ml-1 for methyl and propyl respectively. The stoichiometry of the paraben compounds o-chloranil complexes was found to be 1:1 method. The procedure was characterized by its simplicity with accuracy and precision. The proposed method was applied successful in some detergents (shampoo and lotion) containing paraben compounds. | ||
| Keywords | ||
| Spectrophotometric; methyl and propyl paraben; Charge Transfer Complex; detergents | ||
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