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"- For SEM/EDX accuracy and sum of mass% is missing. If the latter is more than a few at.% away from 100 the measurement cannot considered to be reliable. In ¡°Experimental Procedure¡± there is not any information to the calibration for EDX measurements. Please add all this information to Table 2+3.
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Re: The results of the element analysis were obtained with INCA Energy software by Oxford Instruments. The XPP matrix correction scheme of Pouchou and Pichoir provided by the software is used, for its favorable performance when tilted samples consisting light elements in a heavy matrix. The standards referencing used in this EDS system is virtual standard sample library. And, the instrument is corrected every two years with the Oxford SPI standard samples by the professional engineer. To minimize the error, the compositions reported in this paper were the averages of at least five measurement
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The sum of mass% which is easily available from INKA is still not given in Table 2. This information is important! The given errors are partly unrealistic, e.g. C4, at% of Al in "MnSn2" is given as 0.5(0.1). This error comes may be from statistics of several measurements but does not include systematic errors. The determination of light elements within a matrix of rather heavy elements has for sure an error of more than 0.5 at.%, which is considered to be the minimum error of conventional SEM/EDX method.
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