کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5488100 | 1523909 | 2016 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Orbitrap mass analyser for in situ characterisation of planetary environments: Performance evaluation of a laboratory prototype
ترجمه فارسی عنوان
تجزیه و تحلیل توده اورتریتار برای تعیین موقعیت در محیط های سیاره ای در محل: ارزیابی عملکرد یک نمونه آزمایشگاهی
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کلمات کلیدی
طیف سنجی جرمی، تجزیه کننده توده ای ارگانیک، ابزار دقیق فضا،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فیزیک زمین (ژئو فیزیک)
چکیده انگلیسی
For decades of space exploration, mass spectrometry has proven to be a reliable instrumentation for the characterisation of the nature and energy of ionic and neutral, atomic and molecular species in the interplanetary medium and upper planetary atmospheres. It has been used as well to analyse the chemical composition of planetary and small bodies environments. The chemical complexity of these environments calls for the need to develop a new generation of mass spectrometers with significantly increased mass resolving power. The recently developed OrbitrapTM mass analyser at ultra-high resolution shows promising adaptability to space instrumentation, offering improved performances for in situ measurements. In this article, we report on our project named “Cosmorbitrap” aiming at demonstrating the adaptability of the Orbitrap technology for in situ space exploration. We present the prototype that was developed in the laboratory for demonstration of both technical feasibility and analytical capabilities. A set of samples containing elements with masses ranging from 9 to 208Â u has been used to evaluate the performance of the analyser, in terms of mass resolving power (reaching 474,000 at m/z 9) and ability to discriminate between isobaric interferences, accuracy of mass measurement (below 15Â ppm) and determination of relative isotopic abundances (below 5%) of various samples. We observe a good agreement between the results obtained with the prototype and those of a commercial instrument. As the background pressure is a key parameter for in situ exploration of atmosphere planetary bodies, we study the effect of background gas on the performances of the Cosmorbitrap prototype, showing an upper limit for N2 in our set-up at 10â8Â mbar. The results demonstrate the strong potential to adapt this technology to space exploration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Planetary and Space Science - Volume 131, 15 October 2016, Pages 33-45
Journal: Planetary and Space Science - Volume 131, 15 October 2016, Pages 33-45
نویسندگان
Christelle Briois, Roland Thissen, Laurent Thirkell, Kenzi Aradj, Abdel Bouabdellah, Amirouche Boukrara, Nathalie Carrasco, Gilles Chalumeau, Olivier Chapelon, Fabrice Colin, Patrice Coll, Hervé Cottin, Cécile Engrand, Noel Grand, Jean-Pierre Lebreton,