Critical comparison of X-ray fluorescence and combustion-infrared methods for the determination of sulphur in biological matrices
- 1 January 1986
- journal article
- Published by Royal Society of Chemistry (RSC) in The Analyst
- Vol. 111 (1) , 105-106
- https://doi.org/10.1039/an9861100105
Abstract
Eleven NBS SRMs were used to evaluate XRF and combustion-IR as methods for the rapid, routine determination of sulphur and biological matrices. Relative standard deviations of 2.8 and 3.8% and analysis times of 1 and 3 min were obtained for the two methods, respectively, on dry, powdered material. Good agreement with the literature was obtained for plant tissues, but both methods produced higher results (14%) on animal tissues compared with NBS values.Keywords
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