Quantitative Analysis of Metal Impurities in Carbon Nanotubes: Efficacy of Different Pretreatment Protocols for ICPMS Spectroscopy
文献类型：期刊论文
| 作者 | Ge CC(葛翠翠); Lao F(劳芳); Li W(李炜) ; Li YF(李玉锋); Chen CY(陈春英); Li B(李柏); Qiu Y(邱杨); Mao XY(毛雪瑛); Chai ZF(柴之芳); Chen CY(陈春英)
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| 刊名 | ANALYTICAL CHEMISTRY
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| 出版日期 | 2008 |
| 卷号 | 80期号:24页码:9426-9434 |
| 通讯作者 | [Chen, Chunying] Chinese Acad Sci, Inst High Energy Phys, Lab Bioenvironm Effects Nanomat & Nanosafety, Beijing 100049, Peoples R China ; Natl Ctr Nanosci & Technol China NCNST, Beijing 100190, Peoples R China |
| 英文摘要 | Metal impurities in carbon nanotubes (CNTs) are undesirable for their uses in diverse applications, for instance, they may potentially have a negative health impact when using in biomedical fields. However, so far there is a lack of analysis methods able to quantify metallic impurities in CNTs. In this paper, using the neutron activation analysis (NAA) technique as a nondestructive standard quantification method and inductively coupled plasma mass spectrometry (ICPMS) as a practical approach, we established an analytical method for quantitative determination of metallic impurities in CNTs. ICPMS, one of the most sensitive analytical techniques used for coincident multielement measurements, has become a common tool in many laboratory, and thus it is easily available and a good selection for determining the metal impurities in CNTs. However, because of their extremely stable structure and the encapsulated metals in the defect structure, CNTs must undergo special pretreatments before ICPMS. We investigated different sample pretreatment procedures for ICPMS analysis, including dry ashing coupled with acid extraction, wet digestion, and a combination of dry ashing with acid digestion. With the reference data from the nondestructive analytical method of NAA, we found that the quantitative determination of metal impurities in CNTs is highly dependent on the sample pretreatment in which the conditions are largely different from those used for conventional biological samples or environmental materials. This paper not only provides the practical method and analysis conditions for quantifying the metal impurities of CNTs but also the first protocol for pretreatment processes of CNT samples. |
| 学科主题 | Chemistry |
| 类目[WOS] | Chemistry, Analytical |
| 研究领域[WOS] | Chemistry |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000261728900007 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240159]  |
| 专题 | 高能物理研究所_院士 高能物理研究所_实验物理中心 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Ge CC,Lao F,Li W,et al. Quantitative Analysis of Metal Impurities in Carbon Nanotubes: Efficacy of Different Pretreatment Protocols for ICPMS Spectroscopy[J]. ANALYTICAL CHEMISTRY,2008,80(24):9426-9434. |
| APA | 葛翠翠.,劳芳.,李炜.,李玉锋.,陈春英.,...&Zhao, YL.(2008).Quantitative Analysis of Metal Impurities in Carbon Nanotubes: Efficacy of Different Pretreatment Protocols for ICPMS Spectroscopy.ANALYTICAL CHEMISTRY,80(24),9426-9434. |
| MLA | 葛翠翠,et al."Quantitative Analysis of Metal Impurities in Carbon Nanotubes: Efficacy of Different Pretreatment Protocols for ICPMS Spectroscopy".ANALYTICAL CHEMISTRY 80.24(2008):9426-9434. |
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来源：高能物理研究所
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