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アイテム
Triple-quadrupole inductively coupled plasma-mass spectrometry with a high-efficiency sample introduction system for ultra-trace determination of 135Cs and 137Cs in environmental samples at femtogram levels
https://repo.qst.go.jp/records/49211
https://repo.qst.go.jp/records/49211a2050092-0199-4e8a-8c75-61460c7ae646
| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2018-10-17 | |||||
| タイトル | ||||||
| タイトル | Triple-quadrupole inductively coupled plasma-mass spectrometry with a high-efficiency sample introduction system for ultra-trace determination of 135Cs and 137Cs in environmental samples at femtogram levels | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Zheng, Jian
× Zheng, Jian× Cao, Liguo× Tagami, Keiko× Uchida, Shigeo× 鄭 建× 田上 恵子× 内田 滋夫 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | High yield fission products, 135Cs and 137Cs, have entered the environment as a result of anthropogenic nuclear activities. Analytical methods for ultra-trace measurement of 135Cs and 137Cs are required for environmental geochemical and nuclear forensics studies. Here we report a highly sensitive analytical method combining the APEX-Q desolvation sample introduction system with triple-quadrupole inductively coupled plasma-mass spectrometry (AEPX-ICP-MS/MS) for the determination of 135Cs and 135Cs/137Cs isotope ratio at femtogram levels. Using the APEX-ICP-MS/MS system, we introduced only selected ions into the collision/reaction cell to react with N2O, significantly reducing the isobaric interferences (135Ba+ and 137Ba+) and polyatomic interferences (95Mo40Ar+, 97Mo40Ar+, 119Sn16O+, and 121Sb16O+). Compared to the standard instrument setup of ICP-MS/MS, the APEX-ICP-MS/MS enables a 10-fold sensitivity increase. In addition, an effective chemical separation scheme consisting of AMP Cs-selective adsorption and two-stage ion-exchange chromatographic separation was developed to remove major matrix elements and interfering elements from environmental samples (10-40g). This separation method showed high decontamination factors (104-107) for major matrix elements (Al, Ca, K, Mg, Na and Si) and interfering elements (Ba, Mo, Sb and Sn). The high sensitivity of APEX-ICP-MS/MS and the effective removal sample matrix allowed reliable analysis of 135Cs and 137Cs isotopes with extremely low detection limits (0.002 pg mL-1). The accuracy and applicability of the APEX-ICP-MS/MS method was validated by analysis of seven standard reference materials (soils, sediment and plants). For the first time, ultra-trace determination of 135Cs and 135Cs/137Cs isotope ratio at global fallout source environmental samples was achieved with the ICP-MS technique. | |||||
| 書誌情報 |
Analytical Chemistry 巻 88, 号 17, p. 8772-8779, 発行日 2016-09 |
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| 出版者 | ||||||
| 出版者 | ACS Publications | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1021/acs.analchem.6b02150 | |||||
