Generally, each gel-making mold is equipped with a number of different teeth comb plate, comb teeth wide and thick, the formation of the point like L volume is larger, used for DNA fragment recovery experiments, etc., on the contrary, the comb teeth are narrow and thin, the formation of the point like L volume is smaller, used for PCR products, enzyme digestion product identification, etc..

The choice of comb plate is mainly depends on the amount of samples, in general, the amount of samples when trying to choose a thin comb plate gel, this time the electrophoresis band is dense and clear, easy to analyze the results.

The choice of comb plate depends on the amount of sample.