A Critical Study on the Methods of Water Analysis. A Correction to my Fifth paper on the Same Subject

Abstract

In his previous paper (This Jounal II 14 (1936) 447), the author reported the marked influence of silicate on Denigès-Atkins' method of phosphate determination. He has recently found that this influence is not due to silicate, but due to fluoride or silicofluoride. There is almost no effect on the phosphate determination, if sodium silicate is used instead of sodium silicofluoride.