A system to separate and concentrate a component of a whole material to obtain a separated component and/or a concentrated component , comprising: an integrated separation and concentration container including a separation section and a concentration section , wherein the separation section serves for separation of the whole material; a section passage between the separation section and the concentration section ; a buoy system positioned within the separation section configured to assist in a separation of the whole material and further comprising a first buoy member , a second buoy member , a third buoy member and a buoy separation volume defined between the first buoy member and the second buoy member , wherein the separated component is positioned in the buoy separation volume in use of the system; wherein the first buoy member has a first density and the second buoy member has a second density such that the buoy separation volume of the buoy system moves to a selected component density when the whole material is separated, wherein the second buoy member is interconnected with the third buoy member , wherein the third buoy member defines a buoy passage to withdraw the component from the buoy separation volume ; and wherein the section passage is in communication with the buoy passage to allow the component to be moved to the concentration section ; a whole material input syringe ; and at least one withdrawal syringe ; characterized in that the concentration section is associated with and separated by a wall from the separation section and in that the system further comprises a check valve assembly connected to the section passage ; wherein the component is operable to be drawn through the section passage and a check valve from the separation section and pushed through the check valve assembly into the concentration section . an integrated separation and concentration container including a separation section and a concentration section , wherein the separation section serves for separation of the whole material; a section passage between the separation section and the concentration section ; a buoy system positioned within the separation section configured to assist in a separation of the whole material and further comprising a first buoy member , a second buoy member , a third buoy member and a buoy separation volume defined between the first buoy member and the second buoy member , wherein the separated component is positioned in the buoy separation volume in use of the system; wherein the first buoy member has a first density and the second buoy member has a second density such that the buoy separation volume of the buoy system moves to a selected component density when the whole material is separated, wherein the second buoy member is interconnected with the third buoy member , wherein the third buoy member defines a buoy passage to withdraw the component from the buoy separation volume ; and wherein the section passage is in communication with the buoy passage to allow the component to be moved to the concentration section ; a whole material input syringe ; and at least one withdrawal syringe ; characterized in that the concentration section is associated with and separated by a wall from the separation section and in that the system further comprises a check valve assembly connected to the section passage ; wherein the component is operable to be drawn through the section passage and a check valve from the separation section and pushed through the check valve assembly into the concentration section . <EOS>