Buffere og standarder
Hydrogenionbuffere omfattende en blanding af en svag syre og dens konjugatbase eller omvendt og anvendt til at stabilisere pH; også fortyndingsmidler, vaskeopløsninger og standardværdiopløsninger, der anvendes til en bred vifte af videnskabelige kalibreringsformål.
De buffere, der bruges til at kalibrere pH-målere, kan være certificeret og/eller sporbare til National Institute of Standards and Technology (NIST). Disse buffere kan også være farvekodede for nem identifikation:
- Rød: pH 4,0 Gul:
- pH 7,0 Blå:
- pH 10,0
Fexofenadine Hydrochloride, Mikromol™
Discover Mikromol - your trusted source for high-quality pharmaceutical reference standards. Supporting accurate, compliant analysis with ISO 17034-accredited materials designed for confidence in every result.
Fexofenadine hydrochloride 100 μg/mL in Acetonitrile, Dr. Ehrenstorfer
Discover Dr. Ehrenstorfer’s certified reference materials: available in multiple formats, including multi-component regulatory mixtures, to power your food and environmental analysis with traceable, ISO-accredited quality