Ultraviolet Spectrophotometric Determination of Tin as Thiocyanato-Complex
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概要
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Tetravalent tin in thiocyanate solution shows an absorption band in the range of wave length shorter than 300 mμ, which is applicable to the ultraviolet spectrophotometric determination of tin. The absorbance was measured at the wave length of 275 mμ in 1.2 N sulfuric acid and 10% ammonium thiocyanate solution. The extinction coefficient is (2.85±0.07)×10^3. The addition of alcohol increases the sensitivity of the method about twofold. Antimony (III, V), titanium (IV), iron (III), Se (IV) and V (V) seriously interfered with the determination. This method has the merrits of simplicity of the procedure, considerably high stability and good accuracy.
- 東北大学の論文
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