| 振荡提取和超声提取用于土壤样品中元素形态分析 |
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| 引用本文： | 查立新,马玲,刘文长,刘洪青,陈波,冯玲玲.振荡提取和超声提取用于土壤样品中元素形态分析[J].岩矿测试,2011,30(4):393-399. |
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| 作者姓名： | 查立新 马玲 刘文长 刘洪青 陈波 冯玲玲 |
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| 作者单位： | 安徽省地质实验研究所,安徽合肥,230001 |
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| 基金项目： | 中国地质调查局地质调查项目，多目标地球化学调查有机结合态元素测试方法研究项目 |
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| 摘 要： | 采用振荡提取和超声提取两种提取方式对土壤样品中Cu、Pb、Zn、Co、Ni、Cr、Cd、Mn、As、Sb、Hg、Se等12种元素形态分析进行了实验,对超声提取时间进行了详细研究,比较了振荡提取和超声提取的精密度和准确度。结果表明,在元素离子交换态(包含水溶态)、碳酸盐结合态、腐殖酸结合态、铁锰氧化物结合态提取中,采用超声提取技术可以大大减少提取时间,总提取时间仅为3.2 h,工作效率比振荡提取提高5倍。超声提取的精密度优于振荡提取,方法精密度为3.1%～34.8%(n=12),准确度(各态量之和与全量相对误差)为0.34%～11.85%,准确度、精密度均能满足《生态地球化学评价样品分析技术要求》(DD 2005-03)》。超声提取条件更易掌握和控制,方法简单快速,适合于批量样品分析,已用于分析数万件生态地球化学评价样品。该方法已列入DD2005-03中,为指定的多目标区域地球化学调查土壤样品形态分析方法。
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| 关 键 词： | 土壤 形态分析 振荡提取 超声提取 |
| 收稿时间： | 9/2/2010 12:00:00 AM |
| 修稿时间： | 2011/3/26 0:00:00 |
Morphological Analysis of Elements in Soils Using Mechanical Shaking Extraction and Ultrasonic Vibration Extraction |
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| ZHA Li-xin,MA Ling,LIU Wen-zhang,LIU Hong-qin,CHEN Bo and FENG Ling-ling.Morphological Analysis of Elements in Soils Using Mechanical Shaking Extraction and Ultrasonic Vibration Extraction[J].Rock and Mineral Analysis,2011,30(4):393-399. |
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| Authors: | ZHA Li-xin MA Ling LIU Wen-zhang LIU Hong-qin CHEN Bo and FENG Ling-ling |
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| Institution: | ZHA Li-xin,MA Ling,LIU Wen-zhang,LIU Hong-qin,CHEN Bo,FENG Ling-ling(Anhui Provincial Geological Experiment Institute,Hefei 230001,China) |
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| Abstract: | Two methods of mechanical shaking extraction and ultrasonic vibration extraction have been tested for chemical morphological analysis of Cu,Pb,Zn,Co,Ni,Cr,Cd,Mn,As,Sb,Hg and Se in soil samples.Extraction time by ultrasonic vibration extraction has been studied in detail,and the precision and accuracy were compared between mechanical shaking extraction and ultrasonic vibration extraction.The results indicate that ultrasonic extraction technology can greatly reduced extraction time to 3.2 h for elements that ... |
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| Keywords: | soil morphological analysis shaking mechanical extraction ultrasonic vibration extraction |
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