Improvements in or relating to Colorimeters

摘要: 1,192,008. Photo-electric colorimeters. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Sept. 11, 1967 [Sept. 14, 1966], No.40980/66. Heading G1A. A colorimeter comprises a plurality of flow cells spaced around circle with their axes transverse to the circumference light source directing beam axially through each cell means for guiding from said common intensity measuring and shutter arranged rotate in circular path between means, having an aperture admitting turn as rotates. Fifteen pairs 23, 24, Fig. 2 sample reference fluids are illuninated by tungsten or quartz iodine lamps 25 different filters 26. The passing 24 is conducted fibre optic bundles 36, 37 respectively two recording photometers. 28 rotated motor filters, size equal circumferential distance corresponding adjacent whereby these falls on associated photometer no blank interval. Test procedure. whose response reagent be measured at 14 wavelengths split into units, which treated put pairs. remaining pair (with initially aligned) contains water standardization. then once time coincides cells, micro-switch, 47, 48 &c. actuates absorption wavelength filter. Flow cells. Each has inlet pipe electrodes outlet connected valve suction source. When dipped test tube circuit opens flows purging previous until level below electrodes. tubes positioned so that end faces washed flowing sample. In modification, 1, (not shown) located radially inward start points outwards may lamp filter, filter bundle. All concentrated separate sectors provided apertures.