Description

Silica reagent set for the preparation for 2 L of reagent R1, 2 L of reagent R2, 2 L of reagent R3, 2 L of reagent R4. Only powders are provided, ultrapure water (18.3 Megaohm conductivity approx 0.054 uS/cm at 25°C), concentrated sulphuric acid (CAS 7664-93-9 analytical grade) and nitric acid (CAS 7697-37-2 analytical grade) are not included to be added for preparation. The set includes instructions for the preparation.