Abstract: Provided is a spectrophotometric device including a base plate including a first surface to accommodate a sample thereon, a rotatable plate including a second surface corresponding to and spaced a certain distance apart from the first surface, a test beam radiator connected to the first surface through a first beam guide to radiate a test beam to the sample accommodated on a beam path between the first and second surfaces, a spectrophotometer connected to the second surface through a second beam guide to analyze spectroscopic properties of the sample by analyzing a characteristic beam having passed through the sample accommodated on the beam path, and a state determiner provided near the beam path to determine whether the sample accommodated between the first and second surfaces is in a state in which analysis of optical properties is enabled.

Abstract: Provided is a cell culture system capable of mixing a medium for culturing animal or plant cells. The cell culture system includes a body, a movable plate including an accommodation space accommodating a culture bag accommodating a medium to mix the medium, and being tiltable in multiple directions by a central joint mounted at a first location of the body, a first actuator mounted between the body and a second location of the movable plate to move the movable plate, a second actuator mounted between the body and a third location of the movable plate to move the movable plate, and a controller for applying a control signal to the first and second actuators, wherein a first angle between a first reference line extending from the first location to the second location, and a second reference line extending from the first location to the third location is 120°.