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SPECTROPHOTOMETRY DETERMINATION OF MICRO QUANTITIES OF CHLORIDE IN PLUTONIUM METAL

机译：分光光度法测定钚中微量氯离子的含量

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Micro quantities of chloride are determined spectrophotometrically after separation from plutonium metal by pyrohydrolysis. Complete separations are accomplished by heating samples of plutonium metal at 900 to 1000 C. in a stream of argon initially saturated with water at 85 C. The gas stream sweeps the trace element, as hydrogen chloride, into an alkaline absorbing solution. Reagents are added to form colored ferric thiocyanate complex in an amount equivalent to the chloride, and concentration of the complex is determined spectro-photometrically as an indirect measurement of chloride. Optimum range of chloride concentration in analyzing 1-gram plutonium samples by this method is 10 to 50 p. p.m. , with relative standard deviations of 12 and 8 percent, respectively. The range can be extended to 5 and 200 p. p.m. by modifying sample size. Iodide, bromide, cyanide, and thiocyanate interfere in this spectrophotometric chloride method, but these ions normally are not present after a pyrohydrolytic separation.

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Karl S. Bergstresser;
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年度 1963
页码 1-14
总页数 14
原文格式 PDF
正文语种 eng
中图分类工业技术;
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机译：分光光度法测定钚金属及合金中微量铁的含量

SPECTROPHOTOMETRY DETERMINATION OF MICRO QUANTITIES OF CHLORIDE IN PLUTONIUM METAL

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