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Fine-tuning of LA-ICP-QMS conditions for elemental mapping
Journal of Analytical Atomic Spectrometry ( IF 3.4 ) Pub Date : 2020-08-17 , DOI: 10.1039/d0ja00322k
Johannes T. van Elteren 1, 2, 3, 4 , Dino Metarapi 1, 2, 3, 4 , Martin Šala 1, 2, 3, 4 , Vid S. Šelih 1, 2, 3, 4 , Ciprian C. Stremtan 5, 6, 7
Affiliation  

For high-speed and high-resolution elemental LA-ICP-QMS mapping it is important to select the optimal operational conditions to avoid aliasing, minimize blur and maximize the signal-to-noise ratio. An earlier paper already highlighted the fundamentals involved in the selection of these conditions (J. Anal. At. Spectrom., 2019, 34, 1919); this work will fine-tune these conditions using the principle of divisors. This implies finding instrumentally selectable conditions to satisfy the anti-aliasing criterion, i.e., repetition rate × acquisition time = [Doublestruck Z]+. The mathematics involved has been unified in a simple to use app (https://laicpms-apps.ki.si/webapps/home/). The app generates a list of optimized conditions from which the user can select the optimal set, based on the requirements for single or multiple pulse LA-ICP-QMS mapping of elements in “thick” samples.

中文翻译:

用于元素映射的LA-ICP-QMS条件的微调

对于高速和高分辨率的LA-ICP-QMS元素映射,选择最佳操作条件以避免混叠,最小化模糊并最大化信噪比非常重要。较早的纸已经强调参与这些条件的选择的基本原理(J.分析在Spectrom。,2019,34,1919); 这项工作将使用除数原理微调这些条件。这意味着找到满足抗混叠标准的仪器可选条件,重复率×采集时间= [Doublestruck Z]+。所涉及的数学已统一在一个易于使用的应用程序中(https://laicpms-apps.ki.si/webapps/home/)。该应用程序会根据“厚”样本中元素的单脉冲或多脉冲LA-ICP-QMS映射的要求,生成一个优化条件列表,用户可以从中选择最佳设置。
更新日期:2020-08-17
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