DEVICE FOR SPECTROGRAPHY OF LIQUID SAMPLES Russian patent published in 1997 - IPC

FIELD: spectrometry, in particular, devices for spectrography of liquid samples. SUBSTANCE: the device is made in the form of a prism with parallel in pairs faces, on of the pairs forming the inlet and outlet faces is perpendicular to the plane of device dispersion and radiation axis with a blind tetrahedral prismatic cavity with parallel in pairs faces located in its upper part, two pairs of prism faces parallel to each other and cavity, and vertical planes of symmetry formed by the diagonal planes of the prismatic cavity. The prism has three pairs of faces, one of the pairs is perpendicular to the diagonal plane of the prismatic cavity for matching of this diagonal plane with the axis of radiation to be spectrographed at a turn of the prism on the rotary block relative to the vertical axis, formed by intersection of the diagonal planes of the prismatic cavity. Horizontal section of the prismatic cavity by the plane of dispersion may be made in the form of a rhomb, and the device proper - for more than a single fall of radiation to be spectrographed on the faces of the prismatic cavity at matching of its diagonal plane with the axis of radiation. EFFECT: improved design. 2 cl, 4 dwg