https://scholars.lib.ntu.edu.tw/handle/123456789/606212
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Lin H.-T | en_US |
dc.contributor.author | Chiang H.-W | en_US |
dc.contributor.author | Yu T.-L | en_US |
dc.contributor.author | Christl M | en_US |
dc.contributor.author | Liu J | en_US |
dc.contributor.author | DeLong K | en_US |
dc.contributor.author | CHUAN-CHOU SHEN | en_US |
dc.contributor.author | HUEI-TING LIN | en_US |
dc.creator | Lin H.-T;Chiang H.-W;Yu T.-L;Christl M;Liu J;DeLong K;Shen C.-C. | - |
dc.date.accessioned | 2022-04-25T06:21:16Z | - |
dc.date.available | 2022-04-25T06:21:16Z | - |
dc.date.issued | 2021 | - |
dc.identifier.issn | 00032700 | - |
dc.identifier.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85108702859&doi=10.1021%2facs.analchem.1c00409&partnerID=40&md5=5f36f04305d0674f1154bb93227ee1e7 | - |
dc.identifier.uri | https://scholars.lib.ntu.edu.tw/handle/123456789/606212 | - |
dc.description.abstract | A new analytical method has been developed to determine atomic236U/238U ratios in samples with only femtograms of236U using a secondary electron multiplier (SEM) on a multicollector high-resolution inductively coupled plasma mass spectrometer (MC-ICPMS). The abundance sensitivity of the238U tail at 236 atomic mass unit is reduced from 10-6to 10-10with the deployment of a retarding potential quadrupole lens. This method features the reduction of polyatomic interferences from hydride, nitride, lead, and plutonium and the evaluation of nonlinear SEM behavior. The instrument sensitivity is 1-2%, and the estimated methodological detection limit of the236U/238U atomic ratio is as low as 2 × 10-10. Measurements on reference materials with236U/238U ratios of 10-7-10-9, including the IRMM-075 series and the ETH Zurich in-house standard ZUTRI, demonstrate the accuracy of our MC-ICPMS technique. The analytical precisions (2σ) are ±4% for 5 fg of236U at a236U/238U of 1 × 10-8and ±8% for 2 fg of236U at a236U/238U of 4 × 10-9level. Compared to state-of-the-art accelerator mass spectrometry techniques and triple quadrupole-based ICPMS, our detection limit is not as low, but the required sample size is 3-40 times lower, and the throughput is as high as 3-4 samples per hour. The new MC-ICPMS-SEM technique is sensitive enough for determining236U/238U in various small natural samples, such as marine carbonates and seawater. ? 2021 American Chemical Society | - |
dc.relation.ispartof | Analytical Chemistry | - |
dc.subject | Atoms | - |
dc.subject | Electron multipliers | - |
dc.subject | Inductively coupled plasma | - |
dc.subject | Inductively coupled plasma mass spectrometry | - |
dc.subject | Lead metallography | - |
dc.subject | Sampling | - |
dc.subject | Uranium | - |
dc.subject | Accelerator mass spectrometry | - |
dc.subject | Analytical method | - |
dc.subject | Analytical precision | - |
dc.subject | Inductively coupled plasma mass spectrometer | - |
dc.subject | Polyatomic interferences | - |
dc.subject | Reference material | - |
dc.subject | Secondary electron multipliers | - |
dc.subject | Triple quadrupole | - |
dc.subject | Mass spectrometers | - |
dc.subject.classification | [SDGs]SDG14 | - |
dc.title | 236U/238U Analysis of Femtograms of236U by MC-ICPMS | en_US |
dc.type | journal article | en |
dc.identifier.doi | 10.1021/acs.analchem.1c00409 | - |
dc.identifier.scopus | 2-s2.0-85108702859 | - |
dc.relation.pages | 8442-8449 | - |
dc.relation.journalvolume | 93 | - |
dc.relation.journalissue | 24 | - |
item.fulltext | no fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.cerifentitytype | Publications | - |
item.openairetype | journal article | - |
item.grantfulltext | none | - |
crisitem.author.dept | Geosciences | - |
crisitem.author.dept | Oceanography | - |
crisitem.author.orcid | 0000-0003-2833-2771 | - |
crisitem.author.orcid | 0000-0003-3754-6739 | - |
crisitem.author.parentorg | College of Science | - |
crisitem.author.parentorg | College of Science | - |
顯示於: | 地質科學系 |
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