3% Nachlass bei Online-Bestellung; Schnelle Lieferzeiten; DIN ISO 9001:2015 zertifiziert; Herstellerexpertise; Kontaktieren Sie uns ; Direkt zum Inhalt B12 Assay Medium (Vitamin B12 Assay Medium) (DM269) is recommended for Vitamin B12 assay using Lactobacillus leichmannii ATCC 7830 as the test organism. Dispense 5 ml of medium into tubes containing increasing concentrations of cyanocobalamin (Cat. No. 43107) standard or the unknown. The total volume of 10 ml per tube is adjusted by adding distilled water. SDS details and previous versions (where available) Vitamin B12 Assay Medium Manufacturer Millipore Sigma/ Sigma Aldrich USA/ Fluka / RdH Laborchemikalien / Sial /SAFC Product code 82897 Revision date 2025 March 10 Language English Dispense 5 ml of medium into tubes containing increasing concentrations of cyanocobalamin (Cat. No. 95190) standard or the unknown. The total volume of 10 ml per tube is adjusted by adding distilled water. Sterilize by autoclaving at 15 lbs. pressure (121°C) for 15 minutes. Cool the medium. B3801 | Vitamin B12 Assay Medium is a Vitamin B12 free medium recommended for microbiological assay of Vitamin B12 from various test samples. Order from Sigma Aldrich. MilliporeSigma® (Sigma-Aldrich) SKU: B3801-100G $146.42 (You save) Net 30 Terms Available B12 Assay MediumNutriSelect Plus - Find MSDS or SDS, a COA, data sheets and more information. B3801-100G — Vitamin B12 assay medium, 100g. Restored in factory conditions. Guarantee 1 year. from Millipore. B2B order at Samplify FZCO. Gradual increase in growth with increasing USP Cyanocobalamin reference standard levels of 0.0, 0.025, 0.050, 0.075, 0.1, 0.125, 0.150 and 0.2 ng per assay tube is recorded as equivalent increase in absorbance at 620nm.