Shimadzu Corporation

Iori Otomo

Tomohiro Shagawa

Saki Yoshino

A solvent container (), an additional solvent container (), a liquid delivery pump (), a flow path structure () including a connection flow path () a suction flow path (), and a flow path opening/closing mechanism () for opening and closing the suction flow path () of the flow path structure () are included. The connection flow path () has a first end and a second end, the first end is inserted into the solvent container (), and the second end is inserted into the additional solvent container (). The suction flow path () is fluidly connected to the connection flow path () at a position between the first end and the second end of the connection flow path (). When both ends of the connection flow path () are immersed in the solvent and the connection flow path () is filled with the solvent, the solvent flows in the connection flow path () due to a relationship between a liquid level height of the solvent in the solvent container () and a liquid level height of the solvent in the additional solvent container (), so that the solvent is supplied from the additional solvent container () to the solvent container () in response to a decrease in the solvent in the solvent container ().

Mobile phase delivery system and mobile phase delivery method

An autosampler includes an imaging portion configured to move in a horizontal plane direction and a vertical direction while maintaining a positional relationship with a needle. The imaging portion is configured to image a tip of the needle and top surfaces of from a position obliquely above the tip of the needle so that the tip of the needle, a top surface of a vial directly below the tip of the needle, and a top surface of a nearby vial are within a visual field. A distance between the tip of the needle and a target position is measured utilizing a visual field image of the imaging portion, and the tip of the needle is made to reach a target position based on the measured distance.

Autosampler structure for determining a vertical/horizontal distance between a needle tip and a vial top surface

A liquid chromatography separation system includes a separator, a collector, a switch valve and a collection controller. The collector has at least one sample loop and connects the sample loop to a position farther downstream than the separator and collect an eluate including a desired sample component among sample components obtained by separation in the separator in the sample loop. The switch valve switches between a state in which the separator is connected the sample loop and a state in which the separator is not connected to the sample loop. The collection controller is configured to control an operation of switching the switch valve and collect a predetermined amount, which is equal to or smaller than a volume of the sample loop, of an eluate including a desired sample component obtained by separation in the separator in the sample loop from a peak-beginning point of the sample component.

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Kyoto, Japan

Iori Otomo