• 首页|本刊简介|在线投稿|过刊浏览|高级检索|专家风采|学习园地|期刊论坛|联系我们
黄龙钙华有机碳测定方法的对比研究
A comparative study of the method for determining organic carbon of travertine in Huanglong
投稿时间:2017-08-16  修订日期:2017-10-25
中文关键词:黄龙钙华  有机碳  酸溶法  消解法  容量法
英文关键词:travertine in Huanglong  organic carbon  acid dissolution method  digestion method  volumetric method
基金项目:国家自然基金项目(41572035,41741026);西南科技大学研究生创新基金(17ycx041);四川省科技厅科技支撑计划项目(2016FZ0043)
作者单位E-mail
李刚 西南科技大学 环境与资源学院, 四川 绵阳 621010  
董发勤 西南科技大学 环境与资源学院, 四川 绵阳 621010
西南科技大学 固体废物处理与资源化教育部重点实验室, 四川 绵阳 621010 
fqdong@swust.edu.cn 
代群威 西南科技大学 环境与资源学院, 四川 绵阳 621010
西南科技大学 固体废物处理与资源化教育部重点实验室, 四川 绵阳 621010 
 
党政 西南科技大学 环境与资源学院, 四川 绵阳 621010  
赵玉连 西南科技大学 环境与资源学院, 四川 绵阳 621010  
摘要点击次数: 62
全文下载次数: 90
中文摘要:
      中国四川黄龙钙华不仅具有重要的旅游价值,其有机碳含量对确定区内钙华沉积规律和环境生物的作用与贡献也具有重要意义。钙华有机碳测定的前提是有效去除无机碳,较好保留有机组分并测定,才能够准确地为生物参与钙华沉积提供依据。本文采用酸溶法、消解法、容量法对钙华有机碳含量进行了测定,结果表明:酸溶法会改变有机碳在钙华中所占质量分数,测试结果偏高,并且相对标准偏差(RSD)为23.73%~30.95%,精度较差;消解法对黑色、黄色两种钙华有机碳的测试较为准确,但对白色钙华的测试精度不够理想;容量法测试结果的RSD为3.27%~11.11%,在测定时受钙华组分中干扰物质和外界因素影响。通过横向对比这3种方法的优缺点和测试误差来源,认为消解法适用于钙华有机碳测定。
英文摘要:
      The travertine landscape in Huanglong scenic spots has significant tourism value, in addition, organic carbon (OC) of the travertine is key to determining the law of travertine deposition which might be affected by local environmental organisms. In order to precisely provide the basis of the travertine deposition in which microorganisms are involved, it is necessary to remove the inorganic carbonate completely and preserve the part of OC well before measuring the OC of travertine. Determination of OC in travertine was compared between acid dissolution method, digestion method and volumetric method. The results showed that relative standard deviation (RSD) value of the acid dissolution method was from 23.73% to 30.95%, suggesting poor precision. Besides, the acid dissolution method would change the fraction of OC in travertine samples, making the result higher than the fact. The digestion method was more accurate for testing OC in black and yellow travertine, while the precision of the test was low for white travertine. The RSD value of OC tested by volumetric method was from 3.27% to 11.11%, which was influenced by travertine component and extraneous factors. It is found that the digestion method is suitable for OC determination of travertine, based on the data precision and validity in testing organic carbon, the advantage and disadvantages of lateral correlation, and the analysis of error sources between three test methods.
李刚,董发勤,代群威,党政,赵玉连,2018,黄龙钙华有机碳测定方法的对比研究[J].岩石矿物学杂志,(1):152~160.
查看全文  查看/发表评论  下载PDF阅读器
关闭
您是本站第 4030241位访问者  京ICP备05032737号-8
版权所有:《岩石矿物学杂志》编辑部
主管:中国科学技术协会 主办:中国地质学会岩石学专业委员会 中国地质学会矿物学专业委员会 中国地质科学院地质研究所
技术支持:北京勤云科技发展有限公司
function PdfOpen(url) { var win="toolbar=no,location=no,directories=no,status=yes,menubar=yes,scrollbars=yes,resizable=yes"; window.open(url,"",win); } function openWin(url,w,h){ var win="toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,width=" + w + ",height=" + h; controlWindow=window.open(url,"",win); } &et=8E4FC607531F30FE26E3E977424F764A57CE769E54EB0DCD4CEA5386444C004F8944E3ECE4EED4FDD4F5C278EDB9ACC57F83D6734A6D673CCF5FE50F113B1AB8B93CC2BD51B566DF56A986401CA8015502FA85B072AC189FDF32823CA2731A84&pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=621CF755B1A341E5&jid=25F5F0F8F42BD24D151314EDEA002993&yid=EA357AD73C8E13BC&aid=&vid=&iid=CA4FD0336C81A37A&sid=04445C1D2BDA24EE&eid=1B97AE5098AEB49C&fileno=20180112&flag=1&is_more=0"> var my_pcid="E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B"; var my_cid="621CF755B1A341E5"; var my_jid="25F5F0F8F42BD24D151314EDEA002993"; var my_yid="EA357AD73C8E13BC"; var my_aid="";