Immunoaffinity operation instrument and sample extraction method

The invention relates to an immunoaffinity operation instrument and a sample extraction method. The invention discloses an immunoaffinity operation instrument which comprises a shell, a sample rotating device, an uncapping device, a leaching device, an eluting device and a collecting and rotating device, the sample rotating device comprises a sample disc for placing an immunoaffinity column and a first driving mechanism for driving the sample disc to horizontally rotate; the cover removing device is used for removing a cover plug of the immunoaffinity column; the leaching device is used for leaching a sample in the immunoaffinity column; the elution device is used for eluting a sample in the immunoaffinity column; the collecting and rotating device comprises a collecting disc and a second driving mechanism for driving the collecting disc to horizontally rotate; and the collecting disc is used for collecting eluate eluted by the eluting device. According to the immunoaffinity operation instrument, automatic un