MICROBIOLOGY FOR STUDENTS (M4S)

GENE XPERT MTB/RIF ASSAY

Preparation of solution: Some Important Formulae S. No. Formulae 1 Mass= molarity X molecular weight X volume of solution in litre 2 Mass= normality X equivalent weight X volume of solution in litre 3 Volume of desired solution in ml = molarity X molecular weight X volume of solution in ml X 100 / [1000 X specific gravity X assay(purity) ] 4 Volume of desired solution in ml = normality X equivalent weight X volume of solution in ml X 100 / [1000 X specific gravity X assay (purity) ] 5 Dilution factor = concentration of stock solution/ concentration of working solution 6 A working solution (lower conce...