摘要
研制了一套岩石热脱气装置,并将它与稳定同位素比质谱计连接,实现了岩石吸附气或包裹体气的单体碳、氢同位素组成分析。该装置的加热温度可达1100℃。样品收集过程中碳同位素基本不发生分馏。碳同位素组成测量结果的标准偏差≤1. 1‰,氢同位素组成测量结果的标准偏差≤9‰。
To analyze carbon and hydrogen isotopes of hydrocarbo ns in rock, we have developed a device, which extracts hydrocarbons in rock by he ating. It is on-line connected with a stable isotope ratio mass spectrometer. I t can be used to analyze carbon and hydrogen isotopes of absorbed gases and incl usion gases in rock.The temperature can reach 1100 ℃. The standard deviation of isotope composition is less then 1.1‰ for carbon and 9‰ for hydrogen.
出处
《岩矿测试》
CAS
CSCD
2005年第2期135-137,共3页
Rock and Mineral Analysis
基金
国家自然科学基金资助项目(40273009)
