Agarose Gel Electrophoresis Sample Loading (DNA/RNA): 20.00% Ficoll increases sample density for clean well loading; 0.25% Xylene Cyanol and 0.25% Bromophenol Blue provide migration tracking.

PCR Product Analysis: Mix with amplicons before loading to visualize and track fragments during electrophoresis.

Restriction/Ligation Reaction Quenching: 100 mM EDTA chelates Mg2+ to stop enzyme activity; 1.00% SDS denatures proteins for direct gel loading.

Nuclease Inhibition During Sample Prep: EDTA protects DNA/RNA from degradation prior to and during gel loading.

Tracking Dye Reference for Run Progress: Xylene Cyanol and Bromophenol Blue indicate approximate migration fronts for size estimation and run timing.

Loading of Plasmid/Genomic DNA from Crude Extracts: SDS aids release of nucleic acids from protein complexes for quick screening (e.g., colony PCR from Escherichia coli).

RNA Sample Loading for Northern-Style Agarose Gels: Provides density and tracking dyes while EDTA limits RNase activity.

General Sample Preparation for TAE/TBE Gels: Compatible with common agarose electrophoresis systems for nucleic acid analysis.