Abstract: A chromatographic test device comprising, in the order of passage of a sample containing blood cell components and liquid components, a label holding member provided with a labeling substance capable of binding specifically to an analyte contained in the liquid components, a blood cell separation member for separating predetermined blood cell components in the sample from the liquid components, and a chromatographic carrier carrying a capturing substance capable of binding specifically to the analyte.

Abstract: The present invention provides a chromatographic test device, comprising a first blood cell separation member, a second blood cell separation member and a chromatographic carrier disposed in this order from the upstream side of the direction of development of a sample, wherein the first blood cell separation member is constituted so as to separate the blood cell components and the liquid components from each other based on a development speed; the second blood cell separation member is constituted so as to separate the blood cell components and the liquid components from each other based on filtration; and the chromatographic carrier carries a capturing substance being capable of binding specifically to the analyte. A method for detecting the analyte in the sample containing red blood cells and liquid components by using the chromatographic test device is also disclosed.