What are the advantages of post-electrophoresis staining?

Post-electrophoresis staining offers several advantages that make it the preferred technique for accurate sizing of samples. 

Advantages of post-electrophoresis staining include: 

• Does not affect or alter samples during electrophoresis
• Provides researchers with more precise analyses of molecular sizes
• Allows researchers to reuse staining solutions multiple times or use them with multiple gels