Abstract: A separation channel on which a liquid delivery pump, a separation column, and a detector are provided, the liquid delivering pump being for feeding a mobile phase, the separation column being for separating a component in a sample, and the detector being for detecting peaks of components separated from each other by the separation column, a plurality of liquid handlers each including an injecting part and a collecting part, wherein when one of the plurality of liquid handlers is introduced into the separation channel, the injecting part of the one of the plurality of liquid handlers functions as an injector that executes injection operation of a sample into a mobile phase flowing through the analysis channel upstream of the separation column in the analysis channel and the collecting part of the one the plurality of liquid handlers functions as a fraction collector that executes collection operation of peaks of components separated from each other in the separation column, a selector for selectively switchin

Abstract: A preparative liquid chromatograph including an analysis channel (2), an injector (6), a separation column (8), a detector (10), a plurality of fraction collectors (14-1 to 14-n), a switching valve (12) that switches fraction collectors (14-1 to 14-n) to be connected to the outlet of the detector (10) among the plurality of fraction collectors (14-1 to 14-n), and a controller (16) for controlling operations of the plurality of fraction collectors (14-1 to 14-n) and the switching valve (12). In a case where the number of remaining unused collection containers of the fraction collector in use, which is connected to the outlet of the detector, falls below the number of buffers which is an integer of two or more, the controller (16) is configured to switch the switching valve (12) while the fraction collector in use is not performing a peak collection operation.

Abstract: Provided is a plastic foamed article to be attached to an attaching target having a rod-shaped attaching portion having a radial direction, the plastic foamed article including a holding portion for holding the attaching portion in the radial direction in a state attached to the attaching target, the holding portion including a pair of opposite surfaces facing each other for holding the attaching portion between the pair of opposite surfaces and a protrusion provided on one of the pair of opposite surfaces, and at least a part of the protrusion is configured to be elastically deformed by the attaching portion in a state in which the attaching portion is held between the pair of opposite surfaces.

Abstract: Provided is a plastic foamed article to be attached to an attaching target having a rod-shaped attaching portion having a radial direction, the plastic foamed article including a holding portion for holding the attaching portion in the radial direction in a state attached to the attaching target, the holding portion including a pair of opposite surfaces facing each other for holding the attaching portion between the pair of opposite surfaces and a protrusion provided on one of the pair of opposite surfaces, and at least a part of the protrusion is configured to be elastically deformed by the attaching portion in a state in which the attaching portion is held between the pair of opposite surfaces.