Preparation of samples
Agarose gel analysis
Run 2 µl of each sample on a 1% agarose gel* for analysis of the fractions at each stage of the plasmid purification procedure. This figure shows an analytical gel of the different fractions, together with examples of problems that can arise at each step. If you find that you have a problem with a particular step of the protocol, turn to the hints in the relevant section of the troubleshooting guide in the handbooks. If the problem remains unresolved, or if you have any further questions, please call QIAGEN Technical Service.