Evaluation of the compositional changes during flooding of reactive fluids using scanning electron microscopy, nano-secondary ion mass spectrometry, x-ray diffraction and whole rock geochemistry

Application of the TOF-SIMS and SEM-EDS methods to assess the influence of dusting from a phosphate waste deposal place based on hair analysis In this work, scanning electron microscopy with energy dispersive X-ray spectrometry (SEM-EDS) and the time-of-flight secondary ion mass spectrometry (TOF-SIMS) were used to study the particles present on the hair surface of the inhabitants of Wislinka (people environmentally exposed due to the closeness of a dump) in order to obtain the information about the possible influence of dusting from a phosphate waste deposal place. Additionally, the morphology and the composition of fresh phosphogypsum were analyzed. Waste phosphogypsum is formed in the process of a wet phosphoric acid production and there is still a problem with its storage. A thorough understanding of the composition and chemistry of phosphogypsum seems to be necessary to evaluate its environmental impact comprehensively. The results obtained from these two techniques turned out to be complementary and revealed the information expected.

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Microstructural characterisation of five simulated archaeological copper alloys using light microscopy, scanning electron microscopy, energy dispersive X-ray microanalysis and secondary ion mass spectrometry

Analytica Chimica Acta ◽

10.1016/s0003-2670(01)01061-3 ◽

2001 ◽

Vol 440 (2) ◽

pp. 189-198 ◽

Cited By ~ 19

Author(s):

I. Constantinides ◽

M. Gritsch ◽

A. Adriaens ◽

H. Hutter ◽

F. Adams

Keyword(s):

Electron Microscopy ◽

Mass Spectrometry ◽

Scanning Electron Microscopy ◽

Light Microscopy ◽

Secondary Ion Mass Spectrometry ◽

Copper Alloys ◽

X Ray ◽

Microstructural Characterisation ◽

Secondary Ion ◽

Scanning Electron

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Preparation of Borosilicate Xerogel and Research on its Mineralization

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.476-478.2059 ◽

2012 ◽

Vol 476-478 ◽

pp. 2059-2062

Author(s):

Chen Wang ◽

Ya Dong Li ◽

Gu Qiao Ding

Keyword(s):

Electron Microscopy ◽

Scanning Electron Microscopy ◽

Fourier Transform ◽

Infrared Spectroscopy ◽

Ph Value ◽

Sol Gel ◽

X Ray Diffraction ◽

X Ray ◽

Compositional Changes ◽

Scanning Electron

Tributyl borate was first adopted for the introduction of boron in the preparation of bioactive borosilicate xerogel by sol-gel method. The xerogel reacted continuously in 0.25M K2HPO4 solution with a starting pH value of 7.0 at 37 °C for 1day. The structural, morphologies and compositional changes resulting from the conversion were characterized using X-ray diffraction, scanning electron microscopy and Fourier transform infrared spectroscopy. The results indicated that speed of formation of HA was cut way back on the time with the addition of boron and the induction period for the HA nucleation on the surface of the borosilicate xerogel was short than 1 days. The conversion mechanism of the borosilicate xerogels to hydroxyapaptite was also discussed.

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