摘要
针对目前国内大多数实验室采用密封安瓶法制备有机碳同位素质谱分析样品所存在的不足之处，设计了一套静态灼烧氧化法制备有机碳同位素质谱分析样品的实验系统。该系统具有实验精度高、操作方便、经济安全等特点，适合于在国内同位素实验室中推广应用。
Introduced a new method to prepare organic carbon isotopic sample for mass spectrometric analysis. The sample consisting of organic compounds is combusted in static oxidation condition at high temperature to produce CO 2 and H 2O, then followed by separation and conversion. The δ 13 C value of the CO 2 is measured with a mass spectrometer. A combustion temperature above 900℃ is used to guarantee complete oxidation of both reactive and resistant organic materials. This technique has the advantage of accuracy, convenience and safety. It can be used in most isotopic laboratories.
出处
《分析测试技术与仪器》
CAS
1997年第2期113-116,共4页
Analysis and Testing Technology and Instruments
基金
中国科学院湖泊沉积与环境开放实验室资助
关键词
静态灼烧
碳同位素
样品制备
同位素
质谱分析
static combustion organic carbon isotope sample preparation experiment system mass spectrometric analysis
