Addition of Hi-Di formamide is traditionally necessary during primer extension procedure prior to samples loading in a gene analyzer...what does this step stand for?
To denaturate qualitatively of the DNA strands for the purpose of following analysis by electrophoresis of single-stranded DNA-fragments of different lengths in POP.
This is highly deionized formamide used to re-suspend samples before electrokinetic injection on capillary electrophoresis systems and prevent sample evaporation.