Spectrophotometric determination of iron and reducing agents with PPTS, a new water-soluble ferroin-type chromogen of superior sensitivity.
A sulphonated derivative of 3-(4-phenyl-2-pyridyl)-5-phenyl-1,2,4-triazine has been prepared, its structure identified, and its chelation products with iron(II) and copper(I) identified and characterized. The water-soluble compound, referred to as PPTS, has been applied to the determination of iron in various types of samples and the spectrophotometric determination of trace quantities of certain reductants.
Schilt
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Department of Chemistry, Northern Illinois University, DeKalb, Illinois 60115, U.S.A.
Di Tusa
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