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HIGH ACCURACY DETERMINATION OF CHLORINE CONTENT BY ISOTOPE DILUTION FLAME INFRARED EMISSION SPECTROMETRY (ID-FIRE)
HIGH ACCURACY DETERMINATION OF CHLORINE CONTENT BY ISOTOPE DILUTION FLAME INFRARED EMISSION SPECTROMETRY (ID-FIRE)
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机译:同位素稀释火焰红外发射光谱法(ID-FIRE)高精度测定氯含量
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摘要
A method and apparatus for quantitatively determining chlorine content, chloride ion content, and fractional abundance of chlorine isotopes in unknown samples. An unknown sample is combined with a known sample enriched in a specific chlorine isotope which may be ?35Cl or 37¿Cl to form a mixture which is excited to emit an infrared spectrum. An unknown aqueous sample is combined with a known aqueous sample with a known chloride ion content enriched in a specific chlorine isotope which may be ?35Cl or 37¿Cl to form a mixture which is subject to electrolysis, reaction with hydrogen, and heating to excite the emission of an infrared spectrum. An unknown sample is excited to emit a distinctive, characteristic infrared spectrum from a portion. The quantitative determination of chlorine content, chloride ion content, and fractional abundance of chlorine isotopes may be derived from the measurements of the infrared emissions using infrared spectrometry.
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