- Names
-
- C. Bissardon
- O. Proux
- S. Bureau
- E. Suess
- L. H. E. Winkel
- R. S. Conlan
- L. W. Francis
- I. M. Khan
- L. Charlet
- J. L. Hazemann
- S. Bohic
- Title
- Sub-ppm level high energy resolution fluorescence detected X-ray absorption spectroscopy of selenium in articular cartilage
- Abstract
- The speciation of highly-diluted elements by X-ray absorption spectroscopy in a diverse range of materials is extremely challenging, especially in biological matrices such as articular cartilage. Here we show that using a high energy resolution fluorescence detected X-ray absorption spectroscopy (HERFD-XAS) technique coupled to an array of crystal analyzers, selenium speciation down to 400 ppb (μg kg−1) within articular cartilage can be demonstrated. This is a major advance in the speciation of highly-diluted elements through X-ray absorption spectroscopy and opens new possibilities to study the metabolic role of selenium and other elements in biological samples.
- Keywords
- selenium, HERFD, XAS
- Content
- sample, spectral data, spectral data use
- Document type
- article
- Publication state
- published
- Experiment/Spectra
-
- Se K edge XAS HERFD of sodium selenate SeVI at 10K
- Se K edge XAS HERFD of sodium selenite SeIV at 10K
- Se K edge XAS HERFD of sodium selenide SeII at 10K
- Se K edge XAS HERFD of Se-methionine at 10K
- Se K edge XAS HERFD of Se-cysteine at 10K
- Se K edge XAS HERFD of Se-cystine at 10K
- Se K edge XAS HERFD of Se-cystamine dihydrochloride at 10K
- Se K edge XAS HERFD of Se urea at 10K
- Se K edge XAS HERFD of Red Se0 at 10K
- Se K edge XAS HERFD of sodium selenate SeVI solution at 10K
- Se K edge XAS HERFD of sodium selenite SeIV solution at 10K
- Se K edge XAS HERFD of sodium selenide SeII solution at 10K
- Se K edge XAS HERFD of Se-glutathione peroxydase solution at 10K
- Se K edge XAS HERFD of Se-methionine solution at 10K
- Se K edge XAS HERFD of Se-diglutathione solution at 10K
- Se K edge XAS HERFD of Se-cystine solution at 10K