DEVICE FOR PHOTOMETRIC OR SPECTROMETRIC ANALYSIS OF LIQUID SAMPLE Russian patent published in 2016 - IPC G01N21/03 

FIELD: chemistry.

SUBSTANCE: invention relates to a device for photometric or spectrometric analysis of a liquid sample. Device (1) includes, configured to be placed in beam path between radiation source (4) and radiation detector (5), cell (3, 3′) accommodating analysed liquid sample (2) containing radiation-permeable inlet section (6) for inputting radiation (20), generated by source (4) and interacting with volume (8) of sample, and containing permeable for radiation output section (7) for outputting radiation (20″) intended for recording in detector (5). Inlet section (6) has such a convex input surface (11) and/or outlet section (7) has such spherical convex output surface (12, 12′) that incident radiation (20, 20′) is focused on type of focusing lens.

EFFECT: invention enables accurate generation of exciting radiation used for investigation of liquid sample with low costs for assembly and adjustment.

13 cl, 10 dwg