Polarographic determination of folic acid in tablets containing iron(II) sulphate
- 1 January 1978
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in The Analyst
- Vol. 103 (1230) , 950-954
- https://doi.org/10.1039/an9780300950
Abstract
A polarographic method has been developed for the determination of folic acid in tablets containing a large excess of iron(II) sulphate. A prepared extract of the sample is treated with lactate-phosphate buffer and the precipitate removed by filtration. The pH of the iron-free filtrate is adjusted with ascorbic acid to 6.8–7.5 and the folic acid determined polarographically.Keywords
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