Method: photometric 1.1 - 1070 mg/l SiO₂ 0.5 - 500 mg/l Si Spectroquant®

The method is analogous to APHA 4500-SiO2 C.

This Spectroquant® Silicate Reagent Test allows the accurate quantification of silicate (silicic acid) in aqueous samples.

Method applied: In sulfuric solution silicate ions react with molybdate ions to form a yellow heteropoly acid which is determined photometrically.

The Spectroquant® Reagent Test Kits contain highly stable, ready-to-use reagent mixtures to perform the analysis according to the procedure described in the accompanying instruction leaflet .