傅里叶变换红外光谱法测定D<SUB>2</SUB>O浓度

傅里叶变换红外光谱法测定D₂O浓度

摘要: 建立了傅里叶变换红外吸收光谱测定高、中、低浓度重水的方法。该法具有快速、简便、样品无需处理即可直接测定的优点。方法精密度高，D₂O含量（摩尔分数）为99.84%时，精密度优于0.0006%；测量范围宽，D2O含量检测范围为99.92%～0.015%；样品用量少，0.2 mL样品即可获得准确结果。

Abstract: A method to determine D2O concentration （mole fraction）of high, medium and low heavy water with fourier infra-red spectrophotometer was established. Its outstanding advantages were rapid, convenient, less sample （0.2mL sample）, high precision, direct determination without pretreatment. For 99.84 % D₂O, the precision was better than 0.0006%. The determined range of D2O was 99.92%-0.015%。