학술저널
alpha-Picolin 동에 의한 Aspirin의 용매 흡광도 정량법
Spectrophotometric Determination of Acetylsalicylic Acid with Copper-alpha-picolin Complex in Tetrachloromethane
- 대한약학회
- 약학회지
- 제13권 제2&3호 (1969년)
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1969.0980 - 83 (4 pages)
- 71
Acetylsalicylic acid gives a water-insoluble violet complex with alpha-Picolin-Cu(II) reagent. The Complex is extractable well with a mixture of alpha-Picolin-tetrachloromethane solution. the Complex salt dissolved in the mixed solution shows a maximum absorption at 620mmc. It has a melting point at 171oC-173oC and molar ratio of Acetylsalicylic acid: Cu(II): alpha-Picolin was estimated as 2:1:2 by continuous variation method and chelate titration method.
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