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自然档案(树轮、泥炭、湖泊沉积和古土壤等)的有机氧同位素组成,可以作为气候和环境变化的定量或半定量化代用指标,但有机氧同位素分析法的难度制约了这一领域的发展。Edwards等在前人基础上,发明了可重新密封的镍管裂解法,可以视为一次革命性突破。这一方法具有高的数据再生率(变化范围仅为±0.1‰～±0.55‰)、高的系统稳定性、操作上的方便和降低的分析费用等优点。我们根据Edwards等提供的资料,对原系统作了部分改进,首次在我国建立了有机氧同位素分析法。除了保留原方法的优点外,我们的方法还使操作费用和操作难度进一步降低。
Organic oxygen isotope composition of natural records (tree-rings, peat, lacustrine sediments and paleosol, etc.) can be used as a quantitative or semi-quantitative proxy indicator of climate and environmental changes, but the difficulty of organic oxygen isotope analysis restricts the development of. Edwards and other predecessors, based on the invention of resealable nickel tube cracking method, can be regarded as a revolutionary breakthrough. This method has the advantages of high data recovery rate (range of only ± 0.1 ‰ ~ ± 0.55 ‰), high system stability, ease of operation and reduced analysis costs. Based on the information provided by Edwards et al., We made partial improvements to the original system and established the organic oxygen isotope analysis method for the first time in our country. In addition to preserving the advantages of the original method, our method further reduces operational costs and operational difficulties.