نتایج جستجو برای: raman spectrometry

تعداد نتایج: 133014  

Journal: :journal of computational applied mechanics 0
shahab azimi department of mechanical engineering, university of tehran, tehran, iran nano technology research center, research institute of petroleum industry, tehran, iran abbas rastgoo department of mechanical engineering, university of tehran, tehran, iran sorena sattari vice-presidency for science and technology, tehran, iran nano technology research center, research institute of petroleum industry, tehran, iran alimorad rashidi nano technology research center, research institute of petroleum industry, tehran, iran received: 9

nano fillers are part of new studies to enhance various properties of fluids and solids. for example, adding nanoparticles as an enforcement in nanocomposites or as an additive to improve thermal or electrical properties in nano-fluids are of extreme importance in science and industry. there are numerous methods to uniformly disperse nanoparticles in fluid and solid phase. one of the well-used ...

Journal: :Analytica chimica acta 1975
C W Tsai M D Morris

The resonance Raman effect has been known for many years’. Its potential for trace analysis was pointed out by Brandmiiller2 in 1959. However, full exploitation of resonance Raman spectrometry did not begin until the development of high power, multiline gas lasers as Raman excitation sources. The recent application of tunable dye lasers as excitation sources3 promises even broader applications ...

2001
Sanford A. Asher John M. Chalmers Peter R. Griffiths

In this report, the degradation of 1-Naphthol was studied under xenon irradiation for 2 h using    WO3-rGO nanocomposite as photocatalyst. Raman spectroscopy and scanning electron microscopy demonstrated nanocomposite formation. Gas chromatography-mass spectrometry (GC-MS) technique which was utilized to analyze the degradation products, confirmed the formation of salicylic acid as a...

1997
C. Otto C. J. de Grauw J. J. Duindam N. M. Sijtsema J. Greve

Recent results are presented of the application of imaging micro-Raman spectrometers in cellular biophysics and biomedical research. Various micro-Raman spectrometers have been developed that are now routinely applied in these Ðelds. Results are presented that were obtained with a linescan Raman microspectrometer and with a Raman imaging microscope. Applications of Raman linescan spectrometry c...

Journal: :The Analyst 2011
Peter Hamilton David Littlejohn Alison Nordon Jan Sefcik Paul Slavin Paul Dallin John Andrews

The evaporation of methanol from needle-shaped particles of cellobiose octaacetate (COA) has been studied directly in a jacketed vacuum drier using in situ measurements by Raman spectrometry. A design of experiments (DoE) approach was used to investigate the effects of three parameters (method of agitation, % solvent loss on drying and jacket temperature), with the intention of minimising the d...

2017
Nandan K. Das Yichuan Dai Peng Liu Chuan-Zhen Hu Lieshu Tong Xiaoya Chen Zachary J. Smith

Raman spectroscopy is a label-free method of obtaining detailed chemical information about samples. Its compatibility with living tissue makes it an attractive choice for biomedical analysis, yet its translation from a research tool to a clinical tool has been slow, hampered by fundamental Raman scattering issues such as long integration times and limited penetration depth. In this review we de...

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