Patent ID: 8404489

Claim:
A nucleic acid extraction kit, having a container comprising a reagent well therein that stores at least a reagent, a sample well into which a biological sample is introduced, a waste liquid well, a collection well in which an extracted nucleic acid is collected, a first protective film that covers a portion of a well-forming surface in which the reagent well is formed, a second protective film that covers the first protective film and well-forming surfaces of the wells other than the reagent well, a wall surface that is higher than a depth to a bottom of each well and provided around an outer periphery of the container, and an extraction filter cartridge comprising an extraction filter for separating and extracting a nucleic acid from the biological sample and a filter support laminated on at least one surface of the extraction filter, wherein the extraction filter cartridge is formed in a manner that enables the extraction filter cartridge to be supported on the waste liquid well and the collection well.