Low Gel Extraction Yield Due to Improper Gel Dissolution (DNA Cleanup & Plasmid Purification)

Question

Accepted Answer

DNA yield from gel extraction is poor. Undissolved agarose particles may be visible or column flow is impeded. Common causes: 1) Gel slice not fully dissolved; undissolved agarose clogs column and interferes with binding 2) Gel dissolved at temperature >60°C causing DNA denaturation 3) Insufficient incubation time or temperature during gel dissolution step 4) Gel Dissolving Buffer not added in correct ratio to gel mass Solutions: 1) Ensure complete gel dissolution before loading; no visible agarose particles should remain 2) Dissolve gel slice within specified temperature range (37-55°C); do not exceed 60°C 3) Incubate in Monarch Gel Dissolving Buffer for proper time and temperature per protocol 4) Verify correct buffer-to-gel ratio is used for complete dissolution