Brown-red standard colorimetric solution (set)

Silver, aluminum, boron, barium, potassium, lead multi-element standard solutions (6 types) Indium single element standard solution (10% nitric acid matrix) (total validity period: 12 months) Standard substances for spectral analysis of cast aluminum alloys Indium, cesium, niobium, titanium, hafnium, tantalum multi-element standard solutions (6 types) (total validity period: 12 months) Cd series standard solutions for the verification of graphite furnace atomic absorption spectrophotometry

Potassium persulfate solution|25 G/L|Medium standard|1 L|Standard material (RM) Germanium single element standard solution (total validity period: 6 months) Cadmium solution standard substance for atomic absorption spectrophotometer calibration (CD) Aluminum single element standard solution | C (AL) = 1000G / ML (5% nitric acid matrix) | Bolinda | 20ML * 5 | Standard material (RM) - solution type Potassium dichromate aqueous solution standard substance for titration analysis