Abstract: A layered substrate includes a first substrate including an upper surface, a lower surface, a peripheral surface between peripheral edges of the upper surface and the lower surface, and a cut portion cut into the peripheral surface and passing through the upper surface and the lower surface, and a second substrate including an upper surface, a lower surface, and a peripheral surface between peripheral edges of the upper surface and the lower surface, and the lower surface of the second substrate layered on the upper surface of the first substrate and closing the cut portion of the first substrate from above. The second substrate includes a heat conductor that is thermally connected to an element to be mounted on the upper surface of the second substrate, the heat conductor configured to thermally extend to the cut portion of the first substrate.

Abstract: An object of the invention is to provide a cassette and a measuring apparatus that can filter a sample for the optical measurement of an optically active substance and clean a sample flow channel by using a simple configuration. More specifically, the invention is directed to a cassette which includes a filter for filtering out a measurement interfering component from a sample, a container containing the filter, a cleaning liquid or cleaning agent for cleaning a sample flow channel, and a storage tank for storing the cleaning liquid or cleaning agent, and to a measuring apparatus having such a cassette.

Abstract: An object of the invention is to provide a cassette and a measuring apparatus that can filter a sample for the optical measurement of an optically active substance and clean a sample flow channel by using a simple configuration. More specifically, the invention is directed to a cassette which includes a filter for filtering out a measurement interfering component from a sample, a container containing the filter, a cleaning liquid or cleaning agent for cleaning a sample flow channel, and a storage tank for storing the cleaning liquid or cleaning agent, and to a measuring apparatus having such a cassette.

Abstract: An object of the present invention is to provide an optical measurement apparatus equipped with an ion-exchange resin for pretreating a sample, thereby enabling the concentration of component in the sample to be measured with higher accuracy. The optical measurement apparatus of the present invention includes, in addition to the ion-exchange resin, an optical measurement section for measuring, based on the optical characteristics of the component, the concentration of the component in the sample after the sample is passed through the ion-exchange resin.

Abstract: An object of the present invention is to provide an optical measurement apparatus equipped with an ion-exchange resin for pretreating a sample, thereby enabling the concentration of component in the sample to be measured with higher accuracy. The optical measurement apparatus of the present invention includes, in addition to the ion-exchange resin, an optical measurement section for measuring, based on the optical characteristics of the component, the concentration of the component in the sample after the sample is passed through the ion-exchange resin.