Vitamin B-12 Assay Medium, Powder, EMD
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Typical Composition (g/L): D(+)glucose anhydrous 40g; casein hydrolysate "vitamin-free" 15g; L-asparagine 200mg; L-cystinium chloride 200mg; L-cystine 400mg; DL-tryptophan 400mg; adenine 20mg; guanine 20mg; uracil 20mg; xanthine 20mg; 4-aminobenzoic acid 2mg; L(+)ascorbic acid 4g; D(+)biotin (vitamin H) 10µg; calcium D(+)pantothenate 1mg; folic acid 200µg; nicotinic acid 2mg; pyridoxol hydrochloride 4mg; pyridoxal hydrochloride 4mg; pyridoxamine hydrochloride 800µg; riboflavin 1mg; thiaminium dichloride 1mg; di-potassium hydrogen 1g; iron(II) sulfate 20mg; potassium di-hydrogen 1g; magnesium sulfate 400mg; manganese(II) sulfate 20mg; sodium acetate anhydrous 20g; sodium chloride 20mg.
Also to be added: Tween® 80: 2mL. .
Application: FoFor the microbiological assay of vitamins in drugs, foodstuffs, animal feed preparations and other minerals...
Preparation: 83.0g/L
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