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Determination of carbon in sediments by electron beam X‐ray excitation
Author(s) -
Poole A. B.
Publication year - 1973
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.1300020406
Subject(s) - carbon fibers , carbonate , calibration , calibration curve , mineralogy , line (geometry) , excitation , sedimentary rock , cathode ray , beam (structure) , analytical chemistry (journal) , x ray , materials science , electron , geology , chemistry , optics , physics , environmental chemistry , geochemistry , metallurgy , geometry , mathematics , chromatography , quantum mechanics , composite number , detection limit , composite material
Carbon has been determined in sedimentary rock samples using a series of artificial standards. C Kœ line positions for elemental carbon and carbon combined as carbonate differ by 0.51º θ: using an OHM analysing crystal. A ratio of the intensities at the two line positions allows the proportions of combined and elemental carbon present in a sample to be estimated. This proportion is then used to obtain the correct calibration slope factor for the determination of total carbon in the sample.