IMPROVED SUPPRESSOR DEVICE

PROBLEM TO BE SOLVED: To provide an improved suppressor device.SOLUTION: An apparatus for detecting an analyte in a liquid sample may comprise: a slender primary channel which allows an ionic species to flow therethrough and extends through a primary channel member; a first regenerant channel which allows a regenerant to flow therethrough and extends adjacently to the primary channel and is formed in a first block; a first charged barrier which has exchangeable ions capable of passing ions of only one positive or negative charge and of blocking bulk liquid flow and is disposed between the primary channel member and the first block to separate the primary channel from the first regenerant channel; and a first sealing member which is disposed between the first charged barrier and the first block to define the first regenerant channel.