Abstract: A container for forming a cell aggregate is provided in which a group represented by a general formula of: (in the formula, each of R1, R2, and R3 is independently a an alkyl group with a carbon number of 1 or more and 6 or less and m is an integer of 2 or more and 6 or less.) and at least one of an amino group, a carboxyl group, and a hydroxyl group are present near a surface thereof.

Abstract: A sample injection part connected to a column to inject a sample into the column; a sample injection needle attachable to the sample injection part; a sample suction part connectable to the sample injection needle and configured to cause a predetermined amount of the sample to be drawn by suction into the sample injection needle upon connecting to the sample connection needle; a mobile phase supply part configured to supply the column with a mobile phase; a first switching valve for selectively connecting the sample injection needle to one of the sample suction part and the mobile phase supply part; and a second switching valve, including the sample injection part, for supplying the sample and the mobile phase to the column via the sample injection needle in the case of having the sample injection needle attached to the sample injection part and for supplying the mobile phase to the column via the first switching valve in the case of having the sample injection needle removed from the sample injection part ar

Abstract: A container for forming a cell aggregate is provided in which a group represented by a general formula of: (in the formula, each of R1, R2, and R3 is independently a an alkyl group with a carbon number of 1 or more and 6 or less and m is an integer of 2 or more and 6 or less.) and at least one of an amino group, a carboxyl group, and a hydroxyl group are present near a surface thereof.

Abstract: A sample injection part connected to a column to inject a sample into the column; a sample injection needle attachable to the sample injection part; a sample suction part connectable to the sample injection needle and configured to cause a predetermined amount of the sample to be drawn by suction into the sample injection needle upon connecting to the sample connection needle; a mobile phase supply part configured to supply the column with a mobile phase; a first switching valve for selectively connecting the sample injection needle to one of the sample suction part and the mobile phase supply part; and a second switching valve, including the sample injection part, for supplying the sample and the mobile phase to the column via the sample injection needle in the case of having the sample injection needle attached to the sample injection part and for supplying the mobile phase to the column via the first switching valve in the case of having the sample injection needle removed from the sample injection part ar

Abstract: The present invention relates to a sample injection device, a sample injection method, and a liquid chromatograph that control the flow of a mobile phase using a switching valve. The sample injection device includes a port connected to a separation column, a pump for supplying a mobile phase, first and second sample injection needles, a syringe, and a valve configured to selectively connect the first sample injection needle to the pump or the syringe and to connect the second sample injection needle to the pump. When the first sample injection needle is attached to the port, the first sample injection needle is connected to the pump through operation of the valve. When the second sample injection needle is attached to the port, the first sample injection needle is connected to the syringe and the second sample injection needle is connected to the pump.

Abstract: The present invention relates to a sample injection device, a sample injection method, and a liquid chromatograph that control the flow of a mobile phase using a switching valve. The sample injection device includes a port connected to a separation column, a pump for supplying a mobile phase, first and second sample injection needles, a syringe, and a valve configured to selectively connect the first sample injection needle to the pump or the syringe and to connect the second sample injection needle to the pump. When the first sample injection needle is attached to the port, the first sample injection needle is connected to the pump through operation of the valve. When the second sample injection needle is attached to the port, the first sample injection needle is connected to the syringe and the second sample injection needle is connected to the pump.