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The universal sample holders of microanalytical instruments of FIB, TEM, NanoSIMS, and STXM-NEXAFS for the coordinated analysis of extraterrestrial materials
Earth, Planets and Space ( IF 3.0 ) Pub Date : 2020-09-14 , DOI: 10.1186/s40623-020-01267-2
Motoo Ito , Naotaka Tomioka , Kentaro Uesugi , Masayuki Uesugi , Yu Kodama , Ikuya Sakurai , Ikuo Okada , Takuji Ohigashi , Hayato Yuzawa , Akira Yamaguchi , Naoya Imae , Yuzuru Karouji , Naoki Shirai , Toru Yada , Masanao Abe

We developed universal sample holders [the Kochi grid, Kochi clamp, and Okazaki cell) and a transfer vessel (facility-to-facility transfer container (FFTC)] to analyze sensitive and fragile samples, such as extremely small extraterrestrial materials. The holders and container prevent degradation, contamination due to the terrestrial atmosphere (water vapor and oxygen gas) and small particles, as well as mechanical sample damage. The FFTC can isolate the samples from the effects of the atmosphere for more than a week. The Kochi grid and clamp were made for a coordinated micro/nano-analysis that utilizes a focused-ion beam apparatus, transmission electron microscope, and nanoscale secondary ion mass spectrometry. The Okazaki cell was developed as an additional attachment for a scanning transmission X-ray microscope that uses near-edge X-ray absorption fine structure (NEXAFS). These new apparatuses help to minimize possible alterations from the exposure of the samples to air. The coordinated analysis involving these holders was successfully carried out without any sample damage or loss, thereby enabling us to obtain sufficient analytical datasets of textures, crystallography, elemental/isotopic abundances, and molecular functional groups for µm-sized minerals and organics in both the Antarctic micrometeorite and a carbonaceous chondrite. We will apply the coordinated analysis to acquire the complex characteristics in samples obtained by the future spacecraft sample return mission.

中文翻译:

FIB、TEM、NanoSIMS 和 STXM-NEXAFS 微量分析仪器的通用样品架,用于协调分析外星材料

冈崎细胞是作为使用近边缘 X 射线吸收精细结构 (NEXAFS) 的扫描透射 X 射线显微镜的附加附件而开发的。这些新设备有助于最大限度地减少样品暴露于空气中可能发生的变化。涉及这些持有人的协调分析成功进行,没有任何样品损坏或损失,从而使我们能够获得足够的纹理、晶体学、元素/同位素丰度和南极洲微米级矿物和有机物的分子官能团分析数据集。微陨石和碳质球粒陨石。我们将应用协调分析来获取未来航天器样本返回任务获得的样本的复杂特征。这些新设备有助于最大限度地减少样品暴露于空气中可能发生的变化。涉及这些持有人的协调分析成功进行,没有任何样品损坏或损失,从而使我们能够获得足够的纹理、晶体学、元素/同位素丰度和南极洲微米级矿物和有机物的分子官能团分析数据集。微陨石和碳质球粒陨石。我们将应用协调分析来获取未来航天器样本返回任务获得的样本的复杂特征。这些新设备有助于最大限度地减少样品暴露于空气中可能发生的变化。涉及这些持有人的协调分析成功进行,没有任何样品损坏或损失,从而使我们能够获得足够的纹理、晶体学、元素/同位素丰度和南极洲微米级矿物和有机物的分子官能团分析数据集。 .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .微陨石和碳质球粒陨石。我们将应用协调分析来获取未来航天器样本返回任务获得的样本的复杂特征。南极微陨石和碳质球粒陨石中微米级矿物和有机物的晶体学、元素/同位素丰度和分子官能团。我们将应用协调分析来获取未来航天器样本返回任务获得的样本的复杂特征。南极微陨石和碳质球粒陨石中微米级矿物和有机物的晶体学、元素/同位素丰度和分子官能团。我们将应用协调分析来获取未来航天器样本返回任务获得的样本的复杂特征。
更新日期:2020-09-14
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