【摘要】 本文叙述了一个测定含水矿物中氢同位素组成的方法。利用高频感应加热装置分解矿样,提取的结构水和700℃的金属铀作用被转化成氢气。利用MM-602D型质谱计测量氢的同位素组成。 本文列举了各种条件实验数据,用来说明去气条件和提取条件的影响,并对这些影响进行了分析和讨论。 对白云母、黑云母、角闪石和绿泥石四种含水矿物的分析数据表明,本文叙述的方法测定含水矿物的δD值的精密度和重现性大约为±2‰。更多还原

【Abstract】 This paper describes a method to determine the isotopic composition of hydrogen. The samples were decomposed in a high frequency induction furnace and the released structural water was converted to hydrogen by reaction with metal uranium at 700℃ and the isotopic compositions of hydrogen were measured by mass spectrometer MM-602D.The influences of outgassing and extracting conditions are discussed. The minerals of muscovite, biotite, hornblende and chlorite have been analyzed. The precision and reproducibility of the analysis is±2‰.更多还原