鲍鱼中碳、氮同位素的分析  

Analysis of Carbon and Nitrogen Isotope in Abalone

作　　者：王鹏 贾亮亮[2] 段媛媛[2] 段日升[2] 

机构地区：[1]河北省质量技术监督局审查事务中心,石家庄050051 [2]河北省地矿局水文工程地质勘查院,石家庄050021

出　　处：《化学分析计量》2013年第5期14-16,共3页Chemical Analysis And Meterage

基　　金：国家科技支撑计划资助项目(2006BAK02A17)

摘　　要：采用真空干燥法对鲍鱼样品进行预处理,通过稳定同位素比率质谱仪测定鲍鱼中碳、氮同位素的含量,测得的平均比率分别为–16.74‰,7.60‰,其相对标准偏差分别为0.02%,0.05%(n=7),表明方法的精密度良好。分析结果得知碳同位素含量主要与其所食用的食物种类有关,而氮的同位素含量不但与食物源和新陈代谢有关,也受气候、环境等方面的影响。After abalone being freeze-dried, carbon and nitrogen isotope ratio of abalone were determined by stable isotope ratio mass spectrometry. The average of isotope ratio was -16.74‰ and 7.60‰ respectively. The relative standard deviation was 0.02% and 0.05%（n=7）. The results showed that the carbon isotope mainly related to the variety of food, while the nitrogen isotope related to the sources of food and metabolism, it was also affected by the climate, environment and so on.

关 键 词：冷冻干燥 鲍鱼 稳定同位素比率质谱法 

分 类 号：O657[理学—分析化学]