Non disponible en dehors du Royaume-Uni et de l'Irlande
General description
This Standard Reference Material (SRM) is intended for use in the evaluation of equipment, and the validation of methodology used to measure electrophoretic mobility. A unit of SRM 1980 consists of a single 60 cm3 polyethylenebottle containing 40 cm3 of suspension, which is to be diluted prior to analysis. The suspension consists of 500 mg/L goethite (a-FeOOH) suspension saturated with 100 µmol/g phosphate in a 5 × 10–2 mol/L sodium perchlorateelectrolyte solution at a pH of 2.5. The goethite powder consists of acicular particles with an average dimension of 60 nm × 20 nm as determined from electron microscopy. For more information, please refer to the COA and SDS.SRM 1980_cert SRM 1980 _SDS
Legal Information
NIST is a registered trademark of National Institute of Standards and Technology
SRM is a registered trademark of National Institute of Standards and Technology
Ce produit répond aux critères suivants pour être admissible aux récompenses suivantes :