煤炭中铅同位素分析方法研究
同位素比值是污染源解析的基础,为了探索燃煤污染源解析的可行性,本研究建立煤炭中铅同位素的分析方法。采用灰化-微波消解相结合的方式,将煤样转换为溶液状态,用PB树脂（冠醚类）萃取色层法,将铅和大量基体元素有效分离,用多接收电感耦合等离子体质谱法测定铅同位素比值。利用NIST 981标定天然铅溶液的铅同位素比值,应用建立的分析方法,测定^208Pb/^207Pb、^206Pb/^207Pb的同位素比值,相对误差小于0.03%。钠、镁、铝、铁、钛、锰等元素的去污系数均大于400。结果表明,该方法有效、可靠,测定标准煤样（NIST 1635a、NIST 1632d）、山西大同煤样和攀枝花煤样的^208...
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| Published in | 同位素 Vol. 30; no. 4; pp. 232 - 242 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国原子能科学研究院放射化学研究所,北京,102413
2017
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1000-7512 |
| DOI | 10.7538/tws.2017.youxian.020 |
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| Abstract | 同位素比值是污染源解析的基础,为了探索燃煤污染源解析的可行性,本研究建立煤炭中铅同位素的分析方法。采用灰化-微波消解相结合的方式,将煤样转换为溶液状态,用PB树脂（冠醚类）萃取色层法,将铅和大量基体元素有效分离,用多接收电感耦合等离子体质谱法测定铅同位素比值。利用NIST 981标定天然铅溶液的铅同位素比值,应用建立的分析方法,测定^208Pb/^207Pb、^206Pb/^207Pb的同位素比值,相对误差小于0.03%。钠、镁、铝、铁、钛、锰等元素的去污系数均大于400。结果表明,该方法有效、可靠,测定标准煤样（NIST 1635a、NIST 1632d）、山西大同煤样和攀枝花煤样的^208Pb/^207Pb、^206Pb/^207Pb同位素比值,精密度均大于0.2%,两地煤样同位素比值变异为6%~10%,初步验证了建立全国煤炭中铅同位素比值背景数据库的可行性。 |
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| AbstractList | TL364.5; 同位素比值是污染源解析的基础,为了探索燃煤污染源解析的可行性,本研究建立煤炭中铅同位素的分析方法.采用灰化-微波消解相结合的方式,将煤样转换为溶液状态,用PB树脂(冠醚类)萃取色层法,将铅和大量基体元素有效分离,用多接收电感耦合等离子体质谱法测定铅同位素比值.利用NIST 981标定天然铅溶液的铅同位素比值,应用建立的分析方法,测定208 Pb/207 Pb、206 Pb/207 Pb的同位素比值,相对误差小于0.03%.钠、镁、铝、铁、钛、锰等元素的去污系数均大于400.结果表明,该方法有效、可靠,测定标准煤样(NIST 1635a、NIST 1632d)、山西大同煤样和攀枝花煤样的208 Pb/207 Pb、206 Pb/207 Pb同位素比值,精密度均大于0.2%,两地煤样同位素比值变异为6%~10%,初步验证了建立全国煤炭中铅同位素比值背景数据库的可行性. 同位素比值是污染源解析的基础,为了探索燃煤污染源解析的可行性,本研究建立煤炭中铅同位素的分析方法。采用灰化-微波消解相结合的方式,将煤样转换为溶液状态,用PB树脂（冠醚类）萃取色层法,将铅和大量基体元素有效分离,用多接收电感耦合等离子体质谱法测定铅同位素比值。利用NIST 981标定天然铅溶液的铅同位素比值,应用建立的分析方法,测定^208Pb/^207Pb、^206Pb/^207Pb的同位素比值,相对误差小于0.03%。钠、镁、铝、铁、钛、锰等元素的去污系数均大于400。结果表明,该方法有效、可靠,测定标准煤样（NIST 1635a、NIST 1632d）、山西大同煤样和攀枝花煤样的^208Pb/^207Pb、^206Pb/^207Pb同位素比值,精密度均大于0.2%,两地煤样同位素比值变异为6%~10%,初步验证了建立全国煤炭中铅同位素比值背景数据库的可行性。 |
| Abstract_FL | As the basis method for the pollution source apportionment ,the isotope rati-os were applied for analysis Pb isotopes in coal to explore the feasibility of coal pollution source apportionment .A method was established to analysis Pb isotopes in coal .First , the coal samples were dissolved by the combination of ashing and microwave digestion . Then by using PB resin extraction chromatography ,Pb and a large number of matrix elements were effectively separated .After separation ,the Pb isotope ratios were deter-mined by multi-collector inductively coupled plasma mass spectrometry .The Pb isotopic ratios of natural Pb solution were calibrated with NIST 981 .Using established analyti-cal method ,the measured relative error of 208 Pb/207 Pb ,206 Pb/207 Pb in natural Pb solu-tion were less than 0.03% ,the decontamination coefficients of sodium ,magnesium , aluminium ,iron ,titanium and manganese were more than 400 .The results showed that the method was effective and reliable .By measuring the standard coal samples (NIST 1635a ,NIST 1632d) ,Shanxi Datong and Panzhihua coal samples ,it was found that the relative standard deviation of 208 Pb/207 Pb ,206 Pb/207 Pb were less than 0.2% .The ratio difference of 208 Pb/207 Pb and 206 Pb/207 Pb between Datong coal and Panzhihua coal was about 6% ~10% .Such a big difference proved that it was feasible to establish a Pb isotope background database about the coal in China . |
| Author | 刘缓缓;张丽华;崔大庆;朱留超;刘焕良;沈彦;赵立飞;谈树苹 |
| AuthorAffiliation | 中国原子能科学研究院放射化学研究所,北京102413 |
| AuthorAffiliation_xml | – name: 中国原子能科学研究院放射化学研究所,北京,102413 |
| Author_FL | LIU Huan-liang LIU Huan-huan ZHANG Li-hua TAN Shu-ping CUI Da-qing ZHU Liu-chao SHEN Yan ZHAO Li-fei |
| Author_FL_xml | – sequence: 1 fullname: LIU Huan-huan – sequence: 2 fullname: ZHANG Li-hua – sequence: 3 fullname: CUI Da-qing – sequence: 4 fullname: ZHU Liu-chao – sequence: 5 fullname: LIU Huan-liang – sequence: 6 fullname: SHEN Yan – sequence: 7 fullname: ZHAO Li-fei – sequence: 8 fullname: TAN Shu-ping |
| Author_xml | – sequence: 1 fullname: 刘缓缓;张丽华;崔大庆;朱留超;刘焕良;沈彦;赵立飞;谈树苹 |
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| ClassificationCodes | TL364.5 |
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| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| Keywords | Pb isotope ratios PB树脂 multi-collector inductively coupled plasma mass spectrometry 多接收电感耦合等离子体质谱 煤炭 铅同位素比值 coal PB resin |
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| Notes | 11-2566/TL Pb isotope ratios; PB resin; multi-collector inductively coupled plasma mass spectrometry As the basis method for the pollution source apportionment,the isotope ratios were applied for analysis Pb isotopes in coal to explore the feasibility of coal pollution source apportionment.A method was established to analysis Pb isotopes in coal.First,the coal samples were dissolved by the combination of ashing and microwave digestion.Then by using PB resin extraction chromatography,Pb and a large number of matrix elements were effectively separated.After separation,the Pb isotope ratios were determined by multi-collector inductively coupled plasma mass spectrometry.The Pb isotopic ratios of natural Pb solution were calibrated with NIST 981.Using established analytical method,the measured relative error of ~（208）Pb/~（207）Pb,~（206）Pb/~（207）Pb in natural Pb solution were less than 0.03%,the decontamination coefficients of sodium,magnesium,aluminium,iron,titanium and manganese were more than 400.The results showed |
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| PublicationTitle | 同位素 |
| PublicationTitleAlternate | Isotopes |
| PublicationTitle_FL | Journal of Isotopes |
| PublicationYear | 2017 |
| Publisher | 中国原子能科学研究院放射化学研究所,北京,102413 |
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| Snippet | 同位素比值是污染源解析的基础,为了探索燃煤污染源解析的可行性,本研究建立煤炭中铅同位素的分析方法。采用灰化-微波消解相结合的方式,将煤样转换为溶液状态,用PB树脂（冠... TL364.5; 同位素比值是污染源解析的基础,为了探索燃煤污染源解析的可行性,本研究建立煤炭中铅同位素的分析方法.采用灰化-微波消解相结合的方式,将煤样转换为溶液状态,用PB... |
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| SubjectTerms | PB树脂 多接收电感耦合等离子体质谱 煤炭 铅同位素比值 |
| Title | 煤炭中铅同位素分析方法研究 |
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