کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7674486 1495701 2014 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Development of a compact grazing exit X-ray fluorescence spectrometer for fast trace elemental analysis
ترجمه فارسی عنوان
توسعه یک اسپکترومتر فلورسنت اشعه ایکس از طریق گاو جمع و جور برای تجزیه و تحلیل عناصر سریع ردیابی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
A compact grazing exit X-ray fluorescence (GE-XRF) spectrometer was developed in the laboratory. An Al cylindrical collimator for the primary X-rays was placed just above the sample stage. This collimator also played the role of an exit slit to detect fluorescent X-rays at small grazing exit angles. Therefore, no additional exit slit was used in this setup, leading to a compact design. The entire size of the analysis equipment was 80 mm × 200 mm × 170 mm (horizontal × vertical × height). The maximum exit angle was adjusted to the height of the sample stage. The background was drastically reduced at grazing exit angles, enabling trace elemental analysis. A calibration curve was obtained using 10 μL Ga solutions. Accordingly, the detection limit for Ga was evaluated to be 20 ppb.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part B: Atomic Spectroscopy - Volume 101, 1 November 2014, Pages 200-203
نویسندگان
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