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Analysis of powders by XRF using the smear technique
Author(s) -
Purdue G. E.,
Williams R. W.
Publication year - 1985
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/xrs.1300140303
Subject(s) - calibration , coal , spark plug , certified reference materials , materials science , analytical chemistry (journal) , combustion , matrix (chemical analysis) , mineralogy , environmental science , metallurgy , detection limit , chemistry , environmental chemistry , composite material , waste management , physics , chromatography , engineering , mechanical engineering , quantum mechanics , organic chemistry
A thin‐film technique has been developed for the quantitative analysis of grindable solids such as combustion chamber and spark‐plug deposits, coal and fuel‐oil ashes, sediments and catalysts. Only 20 mg of sample are required and results are virtually independent of the matrix for all elements of atomic number 11 (Na) and heavier. Detection limits for the 25 elements so far calibrated range betweenf 0.05 and 1.0% by weight. The technique was proved using 22 certified materials, the precision being within 10% relative over much of the calibration ranges.