Abstract
To discriminate between samples, the rest of the spectrum must be considered; the poly-anions in the structure provide a fingerprint set of Raman bands. An added complication occurs when samples of the same mineral from different mines demonstrate variations in their Raman spectra; this emphasises the
need for data to be collected from a variety of locations, but also suggests that other experimental techniques could provide complementary information.
| Original language | English |
|---|---|
| Pages (from-to) | 59137–59149 |
| Journal | RSC Advances |
| Volume | 4 |
| Issue number | 103 |
| Early online date | 31 Oct 2014 |
| DOIs | |
| Publication status | Published - 2014 |
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A Raman spectroscopic study of uranyl minerals from Cornwall, UK. / Driscoll, Richard; Wolverson, Daniel; Mitchels, J. M. ; Skelton, Jonathan; Parker, Steve; Molinari, Marco; Khan, Imran; Geeson, D; Allen, G C.
In: RSC Advances, Vol. 4, No. 103, 2014, p. 59137–59149.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A Raman spectroscopic study of uranyl minerals from Cornwall, UK
AU - Driscoll, Richard
AU - Wolverson, Daniel
AU - Mitchels, J. M.
AU - Skelton, Jonathan
AU - Parker, Steve
AU - Molinari, Marco
AU - Khan, Imran
AU - Geeson, D
AU - Allen, G C
PY - 2014
Y1 - 2014
N2 - In the fields of nuclear forensics, geology and environmental science, it is important to be able to rapidly identify an unknown sample of uranyl mineral. Raman spectroscopy provides a fast, non-destructive and portable strategy for collecting data, which can then be compared against a set of known experimental information. We present a Raman study of a selection of uranyl minerals from Cornwall, UK. This includes the first Raman spectrum published for the uranyl arsenate mineral, nov´ac̆ekite. These spectra were collected under a standard set of conditions, using three excitation wavelengths, 325, 532 and 785 nm, the latter typically providing spectra with little fluorescence and the best resolution. The vibrational properties of these minerals are characterised by the symmetric stretching mode of the uranyl cation, seen between 750–900 cm1, though the exact position varies with respect to the local environment.To discriminate between samples, the rest of the spectrum must be considered; the poly-anions in the structure provide a fingerprint set of Raman bands. An added complication occurs when samples of the same mineral from different mines demonstrate variations in their Raman spectra; this emphasises theneed for data to be collected from a variety of locations, but also suggests that other experimental techniques could provide complementary information.
AB - In the fields of nuclear forensics, geology and environmental science, it is important to be able to rapidly identify an unknown sample of uranyl mineral. Raman spectroscopy provides a fast, non-destructive and portable strategy for collecting data, which can then be compared against a set of known experimental information. We present a Raman study of a selection of uranyl minerals from Cornwall, UK. This includes the first Raman spectrum published for the uranyl arsenate mineral, nov´ac̆ekite. These spectra were collected under a standard set of conditions, using three excitation wavelengths, 325, 532 and 785 nm, the latter typically providing spectra with little fluorescence and the best resolution. The vibrational properties of these minerals are characterised by the symmetric stretching mode of the uranyl cation, seen between 750–900 cm1, though the exact position varies with respect to the local environment.To discriminate between samples, the rest of the spectrum must be considered; the poly-anions in the structure provide a fingerprint set of Raman bands. An added complication occurs when samples of the same mineral from different mines demonstrate variations in their Raman spectra; this emphasises theneed for data to be collected from a variety of locations, but also suggests that other experimental techniques could provide complementary information.
UR - http://dx.doi.org/10.1039/c4ra09361e
U2 - 10.1039/c4ra09361e
DO - 10.1039/c4ra09361e
M3 - Article
VL - 4
SP - 59137
EP - 59149
JO - RSC Advances
JF - RSC Advances
SN - 2046-2069
IS - 103
ER -