benchtop micro xrf  (Bruker Corporation)

Journal: Spectrochimica Acta Part B: Atomic Spectroscopy

Article Title: Sulphur variations in annually layered stalagmites using benchtop micro-XRF

doi: 10.1016/j.sab.2022.106366

Figure Lengend Snippet: Fig. 1. White light images of stalagmites (A) YD-S2 with red line indicating the position of the micro-XRF linescan and (B) QU_test1 with the red box indicating the position of the micro-XRF map. (For interpretation of the references to colour in this fig. legend, the reader is referred to the web version of this article.)

Article Snippet: All micro-XRF experiments were carried out on a benchtop M4 Tornado micro-XRF (Bruker, Germany) under vacuum condition (20 mbar).

Techniques:

Journal: Spectrochimica Acta Part B: Atomic Spectroscopy

Article Title: Sulphur variations in annually layered stalagmites using benchtop micro-XRF

doi: 10.1016/j.sab.2022.106366

Figure Lengend Snippet: Fig. 2. (A) single point micro-XRF spectrum of YD-S2 from 0 to 25 keV, collected at 10 kV, 400 μA for 60 s. The Compton and Raleigh scattering peaks are labelled, and peaks arising from diffraction by the calcite matrix are denoted by magenta diamonds.

Article Snippet: All micro-XRF experiments were carried out on a benchtop M4 Tornado micro-XRF (Bruker, Germany) under vacuum condition (20 mbar).

Techniques:

Journal: Spectrochimica Acta Part B: Atomic Spectroscopy

Article Title: Sulphur variations in annually layered stalagmites using benchtop micro-XRF

doi: 10.1016/j.sab.2022.106366

Figure Lengend Snippet: Fig. 4. A plot of sulphur net sum counts measured using micro-XRF vs sulphur concentration. Samples were measured (A) with grinding for 10 min and (B) without grinding.

Article Snippet: All micro-XRF experiments were carried out on a benchtop M4 Tornado micro-XRF (Bruker, Germany) under vacuum condition (20 mbar).

Techniques: Concentration Assay

Journal: Spectrochimica Acta Part B: Atomic Spectroscopy

Article Title: Sulphur variations in annually layered stalagmites using benchtop micro-XRF

doi: 10.1016/j.sab.2022.106366

Figure Lengend Snippet: Fig. 3. Micro-XRF sulphur spectra of (A) 0 ppm and (B) 624 ppm sulphur standard using tube voltage of 10, 15, 25, 35, 45 kV shown in black, red, blue, pink and green, respectively. A tube current of 400 μA was used. (For inter pretation of the references to colour in this fig. legend, the reader is referred to the web version of this article.)

Article Snippet: All micro-XRF experiments were carried out on a benchtop M4 Tornado micro-XRF (Bruker, Germany) under vacuum condition (20 mbar).

Techniques:

Journal: Spectrochimica Acta Part B: Atomic Spectroscopy

Article Title: Sulphur variations in annually layered stalagmites using benchtop micro-XRF

doi: 10.1016/j.sab.2022.106366

Figure Lengend Snippet: Fig. 6. Single point analysis of sulphur on YD-S2 over year 1725–1956 obtained by (A) SR-XRF with a step size 10 μm; (B) M4 Tornado micro-XRF with tube spot size 20 μm, step size 19 μm. (C) Sulphur concentration of selected points obtained by micro-XRF vs sulphur count rates of the same positions measured using SR-XRF. Solid red circles denote the selected points used to plot the correlation between the sulphur values measured by micro-XRF vs SR-XRF. (For interpretation of the references to colour in this fig. legend, the reader is referred to the web version of this article.)

Article Snippet: All micro-XRF experiments were carried out on a benchtop M4 Tornado micro-XRF (Bruker, Germany) under vacuum condition (20 mbar).

Techniques: Concentration Assay

Journal: Spectrochimica Acta Part B: Atomic Spectroscopy

Article Title: Sulphur variations in annually layered stalagmites using benchtop micro-XRF

doi: 10.1016/j.sab.2022.106366

Figure Lengend Snippet: Fig. 7. Sulphur variations of the reference stalagmite YD-S2 for the period 1800–1820 measured by (A) micro-XRF using 20 μm spot size, 10 μm step size; (B) SR-XRF with an estimated spot size of 7 μm. The red dash lines denote the start of each year. (For interpretation of the references to colour in this fig. legend, the reader is referred to the web version of this article.)

Article Snippet: All micro-XRF experiments were carried out on a benchtop M4 Tornado micro-XRF (Bruker, Germany) under vacuum condition (20 mbar).

Techniques:

Journal: Spectrochimica Acta Part B: Atomic Spectroscopy

Article Title: Sulphur variations in annually layered stalagmites using benchtop micro-XRF

doi: 10.1016/j.sab.2022.106366

Figure Lengend Snippet: Fig. 5. Sulphur micro-XRF linescan of QU_test1 before (left) and after polishing (right). Variation of calcium % (A) before and (B) after polishing. Sulphur % (C) before and (D) after polishing and S/Ca ratio (E) before and (F) after polishing.

Article Snippet: All micro-XRF experiments were carried out on a benchtop M4 Tornado micro-XRF (Bruker, Germany) under vacuum condition (20 mbar).

Techniques:

Journal: Spectrochimica Acta Part B: Atomic Spectroscopy

Article Title: Sulphur variations in annually layered stalagmites using benchtop micro-XRF

doi: 10.1016/j.sab.2022.106366

Figure Lengend Snippet: Fig. 8. Micro-XRF mapping of polished QU_test1. Micro-XRF mapping of sulphur (A) and calcium (B) using detector one; Micro-XRF mapping of sulphur using detector two (C); (E) Raman map of the 1018 cm−1 peak intensity.

Article Snippet: All micro-XRF experiments were carried out on a benchtop M4 Tornado micro-XRF (Bruker, Germany) under vacuum condition (20 mbar).

Techniques: