J.T.Baker® BAKER INSTRA-ANALYZED®, Cobalt, AA Standard
6450-04
: Avantor
:
- 濃度:1000 mg/L
- Matrix:5% HNO₃
- パックタイプ:Poly bottle for liquids, narrow mouth
- Pk:150 mL
- Element:Cobalt
- Symbol:Co
The standard is prepared by the careful dilution of the metal or its salt, usually 99,99% pure as verified by arc emission spectrometry.
- Standardised with NIST standard chemicals
- Maximum shelf life and stability
The final concentration of each lot is determined by titrimetry or gravimetry.