摘要
基于容量法原理,探讨了海底沉积物中碳酸盐的自动电位滴定法,配合tiamo软件,自动计算并输出测定结果。该法简单快速,且可以批量测试,经深海沉积物等国家标准物质验证,结果与标准值相符。对同一样品进行7次测定,其结果的相对标准偏差小于0.9%。该方法应用于西菲律宾海岩心MD06-3050的部分样品,测试结果与ICP-OES方法得到的结果具有一致性,该方法再现性良好,准确可信。
Based on the volumetric method,the determination of carbonate content in marine sediment was carried out by automatic potentiometric titrator with related software-tiamo,which can export the results automatically.This method is simple and rapid for batch measurement.The results were consistent with standards defined by the National Standard Reference of Deep-Sea Sediment.Seven independent determinations were measured for the same sample,and the standard deviation of the results was less than 0.9 %.Several samples of sediment core MD06-3050 were used to measure carbonate content by automatic potentiometric titrator and ICP-OES.The results of two methods were consistent.
出处
《海洋地质与第四纪地质》
CAS
CSCD
北大核心
2012年第5期157-162,共6页
Marine Geology & Quaternary Geology
基金
国家重点基础研究发展规划项目(2007CB815903)
中国科学院知识创新工程项目(Y12222104Q
KZCX2-YW-221)
国家自然科学基金项目(41076030
40906038)
海洋公益性航行科研专项(200805063)
关键词
深海沉积物
碳酸盐含量
自动电位滴定法
deep-sea sediment
carbonate content
automatic potentiometric titrator
