 
| Certipur® Reference Materials for UV/VIS Spectroscopy | 
Norms and regulations such as Ph Eur, USP, GLP, GMP or DIN EN ISO 9001 demand that UV/VIS spectrometers must be checked for correctness and uniformity of results and function on a regular basis. Merck offers high-quality Certipur® UV-VIS standards for testing absorbance, stray light, spectral resolution power and wavelength accuracy according to Ph Eur. Certipur® UV-VIS standards are supplied as stable, ready-to-use solutions in glass ampoules.
| Catalog Number | Catalog Name | 
|---|---|
| 108164 | UV-VIS Standard 4: Potassium chloride solution | 
| 104660 | UV-VIS Standard 1a: Potassium dichromate solution (600 mg/l) | 
| 108160 | UV-VIS Standard 1: Potassium dichromate solution | 
| 108166 | UV-VIS Standard 6: holmium oxide solution | 
| 108165 | UV-VIS Standard 5: Toluene solution in n-hexane | 
| 108161 | UV-VIS Standard 2: Sodium nitrite solution | 
| 108163 | UV-VIS Standard 3: Sodium iodide solution | 
Find out more about the inorganic reagents of your choice!