其他题名The effects of sample treatment methods on marine sediment organic carbon stable isotope
谭扬
; 吴学丽; 侯立杰发表期刊海洋环境科学
ISSN1007-6336
2018-09-12
卷号37期号:05页码:780-784
关键词沉积物碳稳定同位素比值酸洗法酸蒸法sedimentstable carbon isotope ratioacid rinse methodhydrogen chloride fumigation method
研究领域环境质量评价与环境监测
产权排序(1)中国科学院烟台海岸带研究所; (2)烟台大学
作者部门海岸带信息集成与综合管理实验室
英文摘要Sedimentary organic carbon stable isotopic ratios can be measured by coupled elemental analyzer and stable isotope mass spectrometer (EA-IRMS). The acidification pretreatment of the samples,however, can influence the accuracy of the results. In this paper,we presented the results of comparison of two most commonly used pretreatment methods: acid rinse and hydrogen chloride fumigation, on the influence of the sedimentary organic carbon stable isotopic measurement. The best condition of acid rinse method was that the samples treated by 1 mol /L HCl for 8 h, then the sedimentary inorganic carbon could be removed absolutely. The best condition of acid fumigation method was that the samples treated for 12 h to 18 h, and the appropriate reaction time should be according to the concentration of the sedimentary inorganic carbon. At the best condition of the two methods, the standard deviation of the data could meet the requirements of IRMS,which proved that the two methods were suitable for sedimentary organic carbon measurement.
中文摘要利用元素分析仪-稳定同位素质谱仪(EA-IRMS)联用技术测定海洋沉积物样品有机碳稳定同位素比值,样品的前处理方法会影响测定结果的准确性。本文选取两种常用前处理方法:酸洗法和酸蒸法进行比对。通过对比,酸洗法使用的最佳条件是1 mol/L的HCl,处理8 h,可较好去除沉积物样品中的无机碳;酸蒸法的最佳反应条件是处理12~18 h,且应根据沉积物样品无机碳含量选取相适的处理时间。两种处理方法,在最佳条件下所得测试数据标准偏差均满足测试要求,证明两种方法均适用于沉积物样品的测试。
资助机构中科院仪器设备功能开发技术创新项目#
收录类别CSCD
语种中文
CSCD记录号CSCD:6335718
引用统计
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/24682
专题中科院海岸带环境过程与生态修复重点实验室_海岸带信息集成与战略规划研究中心
作者单位1.中国科学院烟台海岸带研究所;
2.烟台大学
推荐引用方式
GB/T 7714谭扬,吴学丽,侯立杰. 样品处理方法对海洋沉积物有机碳稳定同位素测定的影响[J]. 海洋环境科学,2018,37(05):780-784.
APA谭扬,吴学丽,&侯立杰.(2018).样品处理方法对海洋沉积物有机碳稳定同位素测定的影响.海洋环境科学,37(05),780-784.
MLA谭扬,et al."样品处理方法对海洋沉积物有机碳稳定同位素测定的影响".海洋环境科学 37.05(2018):780-784.
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