Spectrophotometric determination of tin in steel |
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| Authors: | CL Luke |
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| Institution: | Bell Telephone Laboratories. Inc., Murray Hill, N.J.U.S.A. |
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| Abstract: | A new spectrophotometric method for the determination of traces of tin in steel is presented. The tin is isolated by an acid sulfide separation and a double carbamate-chloroform extraction and then determined by a phenylfluorone method in which the selectivity is increased by the use of peroxide and oxalate as masking agents and the sensitivity is increased by extracting the colored tin compound into a small volume of MIBK for the spectrophotometric analysis. |
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