Recent results of synchrotron radiation induced total reflection X-ray fluorescence analysis at HASYLAB, beamline L

C. Streli, G. Pepponi, P. Wobrauschek, C. Jokubonis, G. Falkenberg, G. Záray, J. Broekaert, U. Fittschen, B. Peschel

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

At the Hamburger Synchrotronstrahlungslabor (HASYLAB), Beamline L, a vacuum chamber for synchrotron radiation-induced total reflection X-ray fluorescence analysis, is now available which can easily be installed using the adjustment components for microanalysis present at this beamline. The detector is now in the final version of a Vortex silicon drift detector with 50-mm2 active area from Radiant Detector Technologies. With the Ni/C multilayer monochromator set to 17 keV extrapolated detection limits of 8 fg were obtained using the 50-mm2 silicon drift detector with 1000 s live time on a sample containing 100 pg of Ni. Various applications are presented, especially of samples which are available in very small amounts: As synchrotron radiation-induced total reflection X-ray fluorescence analysis is much more sensitive than tube-excited total reflection X-ray fluorescence analysis, the sampling time of aerosol samples can be diminished, resulting in a more precise time resolution of atmospheric events. Aerosols, directly sampled on Si reflectors in an impactor were investigated. A further application was the determination of contamination elements in a slurry of high-purity Al2O3. No digestion is required; the sample is pipetted and dried before analysis. A comparison with laboratory total reflection X-ray fluorescence analysis showed the higher sensitivity of synchrotron radiation-induced total reflection X-ray fluorescence analysis, more contamination elements could be detected. Using the Si-111 crystal monochromator also available at beamline L, XANES measurements to determine the chemical state were performed. This is only possible with lower sensitivity as the flux transmitted by the crystal monochromator is about a factor of 100 lower than that transmitted by the multilayer monochromator. Preliminary results of X-ray absorption near-edge structure measurements for As in xylem sap from cucumber plants fed with As(III) and As(V) are reported. Detection limits of 170 ng/l of As in xylem sap were achieved.

Original languageEnglish
Pages (from-to)1129-1134
Number of pages6
JournalSpectrochimica Acta - Part B Atomic Spectroscopy
Volume61
Issue number10-11 SPEC. ISS.
DOIs
Publication statusPublished - Nov 2006

Fingerprint

Synchrotron radiation
Monochromators
synchrotron radiation
Fluorescence
monochromators
X rays
fluorescence
Detectors
Silicon
Aerosols
x rays
detectors
Multilayers
Contamination
aerosols
contamination
Crystals
X ray absorption
Microanalysis
impactors

Keywords

  • Aerosol
  • SR-TXRF
  • Synchrotron radiation
  • XANES

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy

Cite this

Recent results of synchrotron radiation induced total reflection X-ray fluorescence analysis at HASYLAB, beamline L. / Streli, C.; Pepponi, G.; Wobrauschek, P.; Jokubonis, C.; Falkenberg, G.; Záray, G.; Broekaert, J.; Fittschen, U.; Peschel, B.

In: Spectrochimica Acta - Part B Atomic Spectroscopy, Vol. 61, No. 10-11 SPEC. ISS., 11.2006, p. 1129-1134.

Research output: Contribution to journalArticle

Streli, C, Pepponi, G, Wobrauschek, P, Jokubonis, C, Falkenberg, G, Záray, G, Broekaert, J, Fittschen, U & Peschel, B 2006, 'Recent results of synchrotron radiation induced total reflection X-ray fluorescence analysis at HASYLAB, beamline L', Spectrochimica Acta - Part B Atomic Spectroscopy, vol. 61, no. 10-11 SPEC. ISS., pp. 1129-1134. https://doi.org/10.1016/j.sab.2006.08.010
Streli, C. ; Pepponi, G. ; Wobrauschek, P. ; Jokubonis, C. ; Falkenberg, G. ; Záray, G. ; Broekaert, J. ; Fittschen, U. ; Peschel, B. / Recent results of synchrotron radiation induced total reflection X-ray fluorescence analysis at HASYLAB, beamline L. In: Spectrochimica Acta - Part B Atomic Spectroscopy. 2006 ; Vol. 61, No. 10-11 SPEC. ISS. pp. 1129-1134.
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AU - Pepponi, G.

AU - Wobrauschek, P.

AU - Jokubonis, C.

AU - Falkenberg, G.

AU - Záray, G.

AU - Broekaert, J.

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