Development and validation of standardless and standards-based X-ray microanalysis
نویسندگان
چکیده
منابع مشابه
Ideal standards for quantitative x-ray microanalysis of biological specimens.
The use of ion exchange beads is proposed as standards for the estimation of various elements in biological tissues. Elements to be detected or quantitated in biological tissues occur in three forms: as free ions or salts, in a crystalline phase, and bound to a matrix. For the latter category a standard system using ChelexlOO -jon exchange beads is proposed. Cations can be attached in a control...
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Development of Soft X-ray Microanalysis using Windowless SDD Technology
New instrumentation which is sensitive to the detection of ultra low energy (<100eV) X-rays [1,2], promises new analysis capability for the SEM; so called ‘Soft X-ray Microanalysis’. Only those soft X-rays that are generated close to the surface of the sample escape and therefore they offer potential for surface and higher spatial resolution analysis. The detectability of very low energy K, L a...
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construction and validation of the translation teacher competency test and the scale of students’ perceptions of translation teachers
the major purpose of this study was to develop the translation teacher competency test (ttct) and examine its construct and predictive validity. the present study was conducted in two phases: a qualitative phase as well as a quantitative phase. in the first phase of the study, the author attempted to find out the major areas of competency required for an academic translation teacher. the second...
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ژورنال
عنوان ژورنال: IOP Conference Series: Materials Science and Engineering
سال: 2020
ISSN: 1757-899X
DOI: 10.1088/1757-899x/891/1/012020