A flow cell (1,201) configured to be installed on a surface plasmon resonance measurement device, comprising: a flow channel (9,209) through which a sample solution flows; an inlet section (4,204) which communicates with the flow channel (9,209) and to which the sample solution is supplied; a sample transfer section (5,206) which includes a plurality of opening sections, each of the opening sections extending from one end to another end, the first end communicating with the flow channel (9,209) and the other end being configured to open to outside air, a sealing member (12, 222) which is configured to seal the openings of the sample transfer section (5, 206) and/or the inlet section (4,204), wherein the sealing member (12,222) is detachable from the inlet section and/or from the opening of the sample transfer section (5, 206), so that the openings and/or the inlet section open to outside air when the sealing member (12,222) is detached, wherein the sample solution transfer section (5,206) communicates with the flow channel (9,209), and wherein the flow cell (1,201) is configured to draw in and guide the sample solution supplied into the inlet section (4,204) to the flow channel (9,209) and to the sample solution transfer section (5,206) by capillarity action, when the sealing member (12c,222) is detached and the other ends of the sample solution transfer section (5,206) open to outside air, a detecting section (10,210) in the flow channel (9,209) which is configured to face and contact the sample solution flowing through the flow channel, characterized in that: the flow cell (1,201) comprises a reference solution transfer section (5,205) different from the sample solution transfer section (5,206), the reference solution transfer section (5,205) including a plurality of opening sections, wherein each of the opening sections extend from one end to another end, the one end communicating with the flow channel (9,209) and the other end being configured to open to outside air, wherein the reference solution transfer section (5,205) communicates with the flow channel (9,209), wherein the flow cell (1,201) is configured to draw in and guide a reference solution supplied into the inlet section, to the flow channel (9, 209), to the detecting section (10,210) and to the reference solution transfer section (5,205) by capillarity action, when the other end of the reference solution transfer section (5,205) open to outside air. a flow channel (9,209) through which a sample solution flows; an inlet section (4,204) which communicates with the flow channel (9,209) and to which the sample solution is supplied; a sample transfer section (5,206) which includes a plurality of opening sections, each of the opening sections extending from one end to another end, the first end communicating with the flow channel (9,209) and the other end being configured to open to outside air, a sealing member (12, 222) which is configured to seal the openings of the sample transfer section (5, 206) and/or the inlet section (4,204), wherein the sealing member (12,222) is detachable from the inlet section and/or from the opening of the sample transfer section (5, 206), so that the openings and/or the inlet section open to outside air when the sealing member (12,222) is detached, wherein the sample solution transfer section (5,206) communicates with the flow channel (9,209), and wherein the flow cell (1,201) is configured to draw in and guide the sample solution supplied into the inlet section (4,204) to the flow channel (9,209) and to the sample solution transfer section (5,206) by capillarity action, when the sealing member (12c,222) is detached and the other ends of the sample solution transfer section (5,206) open to outside air, a detecting section (10,210) in the flow channel (9,209) which is configured to face and contact the sample solution flowing through the flow channel, characterized in that: the flow cell (1,201) comprises a reference solution transfer section (5,205) different from the sample solution transfer section (5,206), the reference solution transfer section (5,205) including a plurality of opening sections, wherein each of the opening sections extend from one end to another end, the one end communicating with the flow channel (9,209) and the other end being configured to open to outside air, wherein the reference solution transfer section (5,205) communicates with the flow channel (9,209), wherein the flow cell (1,201) is configured to draw in and guide a reference solution supplied into the inlet section, to the flow channel (9, 209), to the detecting section (10,210) and to the reference solution transfer section (5,205) by capillarity action, when the other end of the reference solution transfer section (5,205) open to outside air. the flow cell (1,201) comprises a reference solution transfer section (5,205) different from the sample solution transfer section (5,206), the reference solution transfer section (5,205) including a plurality of opening sections, wherein each of the opening sections extend from one end to another end, the one end communicating with the flow channel (9,209) and the other end being configured to open to outside air, wherein the reference solution transfer section (5,205) communicates with the flow channel (9,209), wherein the flow cell (1,201) is configured to draw in and guide a reference solution supplied into the inlet section, to the flow channel (9, 209), to the detecting section (10,210) and to the reference solution transfer section (5,205) by capillarity action, when the other end of the reference solution transfer section (5,205) open to outside air.