| abstract |
(57) [Abstract] An object of the present invention is to provide a higher-speed and higher-resolution amino acid analyzer. A separation column, a buffer pump for sending a plurality of buffers 1, 2, 3, and 4 to the separation column are provided in a flow path between the buffer pump and the separation column. A sampler 7 for introducing an analysis sample into the flow channel, and a separation column 1 A reaction coil 14 for reacting the amino acid separated by 0 after mixing with the ninhydrin reagent, Here, the separation column 10 has a length L1 and an inner diameter R1. And the ratio (L1 / R) is 10 or less, and the separation column 10 The particle size of the ion-exchange resin to be filled is set to 4 μm or less. |