## Abstract The determination of combined carbon in cast iron may be completed absorptiometrically since Beer's Law is obeyed. As the intensity of colour produced by a given sample varies with conditions, e.g., acid concentration and time of heating the solution, a standard must be included in each
A simple photo-electric absorptiometer
β Scribed by Clayson, H. R. ;Scott, B. A.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1946
- Weight
- 463 KB
- Volume
- 65
- Category
- Article
- ISSN
- 0368-4075
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β¦ Synopsis
SIMPLE PHOTO-ELECI'RXC ABSORPTXOMETER By H. R. CLAYSON mod 9 . A. SCOTT This Iinlicr clcscribca the corwtructioti nnd olwntion of a Rtrnightforanrd iilioto-clcctric nbsorjitionicter of originnl clewign. Tho instrunwit innv bc renclily conatructed in tIiu luboriitory worksliop froin stnntIuri1 linrt;. ant1 ia mitnblc for most rontino cnlorinietric dctcnninntions ut 1imscnt cnrriccl out with inom eoniplimitcd wid espnsiro npperntns. Tents in tlicsu lnborntoriex linw slio\vn tltst the inatruiiicnt in Huniciontly robust m i l atnblc t o witlistnnd cnntinnvcl nriu icnclrr rontiiiu conelitions nnd tlint tho nccurncy of rending nntl Rtiibility of c-nlibrntion nrc both rrll up t o tho wtiindnrd rot by ~noru uxlwnsivu imtrunii*iits, 'L'lic 1ircliniinnry dcsign was drnwn np on the following broad prin+lw, wliivh \ere cirtixitlorctl t o be tho cliarncteritdics of n n idcnl iibsorptianictcr : ( I ) Iiotnst J I I ~ siniplo cotwtructinn. (2) Frectloni from p x o n n l crroiw. (3) G o d mproduriliility of rcntlingri. (4) Wrmnncncy of rnlibrntiou. (a) Ihpicl rcnding. ((I) Liquid wll C I I N ~ to.fill tinel clrnin. Iiwfim1il.v witllont n~inoml from tlic instrnnicnt.
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