Spectrophotometric determination of microgram amounts of penicillins by solvent extraction with azure b
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Solvent Extraction and Spectrophotometric Determination of Magnesium by Paratoly l-2-Thenohydroxamic Acid and Quinalizarin
Magnesium is extracted with a chloroform solution of N-p-tolyl-2- thenohydroxamic acid (PTTHA) from aqueous solution of pH 9.5 .Mg-PTTHA complex is colourless and the colour is developed by adding quinalizarin into the extract. lmax and e of the complex are 590nm and 2.8´103 Lmol -1cm-1respectively.Most common ions do not interfere in the determination of magnesi...
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ژورنال
عنوان ژورنال: Analytica Chimica Acta
سال: 1982
ISSN: 0003-2670
DOI: 10.1016/s0003-2670(01)84219-7