Chemical Composition of Mixed Oxides of Nitrogen using Raman Spectroscopy

Spatially off-set Raman spectroscopy (SORS) offers non-invasive chemical characterisation of the sub-surface of various biological tissues as it permits the assessment of diffusely scattering samples at depths of several orders of magnitude deeper than conventional Raman spectroscopy.

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Micro-Raman Spectroscopy Assessment of Chemical Compounds of Mantle Clinopyroxenes

Minerals ◽

10.3390/min10121084 ◽

2020 ◽

Vol 10 (12) ◽

pp. 1084

Author(s):

Anastasiya D. Kalugina ◽

Dmitry A. Zedgenizov

Keyword(s):

Raman Spectroscopy ◽

Chemical Composition ◽

Chemical Compounds ◽

Peak Position ◽

Mantle Xenoliths ◽

Wide Range ◽

Stretching Vibration ◽

Raman Modes ◽

Non Destructive ◽

Heterovalent Isomorphism

The composition of clinopyroxenes is indicative for chemical and physical properties of mantle substrates. In this study, we present the results of Raman spectroscopy examination of clinopyroxene inclusions in natural diamonds (n = 51) and clinopyroxenes from mantle xenoliths of peridotites and eclogites from kimberlites (n = 28). The chemical composition of studied clinopyroxenes shows wide variations indicating their origin in different mantle lithologies. All clinopyroxenes have intense Raman modes corresponding to metal-oxygen translation (~300–500 cm−1), stretching vibrations of bridging O-Si-Obr (ν11~670 cm−1), and nonbridging atoms O-Si-Onbr (ν16~1000 cm−1). The peak position of the stretching vibration mode (ν11) for the studied clinopyroxenes varies in a wide range (23 cm−1) and generally correlates with their chemical composition and reflects the diopside-jadeite heterovalent isomorphism. These correlations may be used for rough estimation of these compounds using the non-destructive Raman spectroscopy technique.

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Changes in chemical composition of bone matrix in ovariectomized (OVX) rats detected by Raman spectroscopy and multivariate analysis

10.1117/12.2078787 ◽

2015 ◽

Author(s):

Yusuke Oshima ◽

Tadahiro Iimura ◽

Takashi Saitou ◽

Takeshi Imamura

Keyword(s):

Raman Spectroscopy ◽

Multivariate Analysis ◽

Chemical Composition ◽

Bone Matrix ◽

Ovx Rats

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Hypergolicity of Mixed Oxides of Nitrogen with Solid Fuels for Hybrid Rocket Application

53rd AIAA/SAE/ASEE Joint Propulsion Conference ◽

10.2514/6.2017-4848 ◽

2017 ◽

Cited By ~ 3

Author(s):

Alicia Benhidjeb-Carayon ◽

Jason Gabl ◽

Timothee L. Pourpoint

Keyword(s):

Mixed Oxides ◽

Solid Fuels ◽

Oxides Of Nitrogen ◽

Hybrid Rocket

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Examination of Titanium Oxides, Lead Oxides and Lead Titanates Using X-Ray Diffraction and Raman Spectroscopy

MRS Proceedings ◽

10.1557/proc-310-385 ◽

1993 ◽

Vol 310 ◽

Cited By ~ 4

Author(s):

Lynnette D. Madsen ◽

Louise Weaver

Keyword(s):

Thin Films ◽

Raman Spectroscopy ◽

Vapour Deposition ◽

Mixed Oxides ◽

Chemical Vapour ◽

Titanium Oxides ◽

X Ray Diffraction ◽

X Ray ◽

Lead Oxides ◽

Metalorganic Chemical Vapour Deposition

AbstractSingle oxides (with titanium or lead) deposited as thin films by low pressure metalorganic chemical vapour deposition were investigated by x-ray diffraction and Raman spectroscopy. Examination of mixed oxides (titanates) and silicates were also carried out using these techniques. The crystallographic nature of these thin films were examined and comparisons made to their bulk counterparts. The deposition and anneal conditions 600 for producing cubic PbTiO3 films are discussed briefly.

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Raman spectroscopy as a non-destructive tool to determine the chemical composition of urinary sediments

Comptes Rendus. Chimie ◽

10.5802/crchim.121 ◽

2021 ◽

Vol 24 (S2) ◽

pp. 1-10

Author(s):

Sandra Tamosaityte ◽

Milda Pucetaite ◽

Arunas Zelvys ◽

Sonata Varvuolyte ◽

Vaiva Hendrixson ◽

...

Keyword(s):

Raman Spectroscopy ◽

Chemical Composition ◽

Non Destructive

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Reactivity and Hypergolicity of Solid Fuels with Mixed Oxides of Nitrogen

Journal of Propulsion and Power ◽

10.2514/1.b37297 ◽

2019 ◽

Vol 35 (2) ◽

pp. 466-474 ◽

Cited By ~ 3

Author(s):

Alicia Benhidjeb-Carayon ◽

Michael P. Drolet ◽

Jason R. Gabl ◽

Timothée L. Pourpoint

Keyword(s):

Mixed Oxides ◽

Solid Fuels ◽

Oxides Of Nitrogen

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Linarite from the Ag-Pb ore deposit at Kletné near Suchdol nad Odrou (Jeseníky Culm, Vítkov Highlands)

Acta Musei Silesiae Scientiae Naturales ◽

10.1515/cszma-2016-0011 ◽

2016 ◽

Vol 65 (1) ◽

pp. 88-96 ◽

Cited By ~ 1

Author(s):

Vladimír Hrazdil ◽

Stanislav Houzar ◽

Jiří Sejkora ◽

Šárka Koníčková ◽

Lenka Jarošová

Keyword(s):

Raman Spectroscopy ◽

Chemical Composition ◽

Chemical Analyses ◽

X Ray Diffraction ◽

Unit Cell Parameters ◽

Ore Deposit ◽

X Ray ◽

Cell Parameters ◽

Copper Sulfides ◽

Dark Blue

Abstract Linarite, PbCu2+(SO4)(OH)2, and associated minerals were studied at new locality near Kletné, where they occur in dump material of historic Ag-Pb mines exploited during the 16th century. Linarite forms thin blue coatings and tiny dark blue crystals (<1 mm in size) in small cavities, in assemblage with cerussite, brochantite and supergene copper sulfides. Mineral was identified by chemical analyses (electron microprobe), Raman spectroscopy and powder X-ray diffraction analysis. Chemical composition of the studied linarite can be expressed by empirical formula Pb0.98Cu1.06(SO4)Σ0.96(OH)2.15 and its refined unit-cell parameters are: a = 9.6944(3), b = 5.6499(2), c = 4.6846(1) Å, ß = 102.669(3)° and V = 250.50(1) Å3. Linarite formed together with other supergene minerals in the oxidation zone of the deposit by weathering of Pb- and Cu-sulphides.

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