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Third-order derivative UV spectrophotometry and densitometry for the simultaneous assay of acetylsalicylic acid and salicylic acid in tablet formulations

By G Jovicić, L Nikolić, K Karijikovic Rajić, Danica Agbaba, M Jovanović and Zorica Đurić


Third-order derivative spectrophotometry is proposed for simultaneous determination of acetylsalicylic acid and free salicylic acid in sustained-release tablets, and compared with TLC-densitometry. Both methods were evaluated through selectivity, and accuracy tests. Results for acetylsalicylic acid and salicylic acid in aspirin sustained-release tablets showed good agreement

Publisher: Societa Chimica Italiana
Year: 1995
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