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Pregled bibliografske jedinice broj: 192338

Crystal polymorphism in several saccharides


Mohaček Grošev, Vlasta; Gajović, Andreja
Crystal polymorphism in several saccharides // Jedanaesti godišnji sastanak Hrvatskog društva za elektronsku mikroskopiju
Zagreb, Hrvatska, 2003. (poster, domaća recenzija, neobjavljeni rad, znanstveni)


CROSBI ID: 192338 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Crystal polymorphism in several saccharides

Autori
Mohaček Grošev, Vlasta ; Gajović, Andreja

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, neobjavljeni rad, znanstveni

Skup
Jedanaesti godišnji sastanak Hrvatskog društva za elektronsku mikroskopiju

Mjesto i datum
Zagreb, Hrvatska, 12.12.2003

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
electron microscopy; Raman spectroscopy; glyceraldehyde; glycolaldehyde; dihydroxyacetone

Sažetak
Scanning electron microscopy micrographs were recorded with JEOL T300 instrument operating at 10 kV. All samples were carbon coated. Raman spectra from 10 - 300 cm-1 were recorded with DILOR Z24 Raman spectrometer. Samples were cooled with CTI CRYOGENICS closed cycle Helium cryostat. Chemicals were products of Sigma Aldrich, purity 98 % or better. Dihidroxyacetone (2, 5-dihydroxymethyl-2, 5-dihydroxy-1, 4-dioxane) exhibits the most complex behaviour, having 5 crystal modifications. In the SEM photograph small dark spots present may indicate the pores through which water evaporated in the electron beam. In the low frequency Raman spectra the same number of phonons is expec-ted to be observed for dioxane and for glyceraldehyde - six. We can com- pare the phonons positions of glycolal- dehyde with those of dioxane, and as- sign the OH torsion to the 240 cm-1 band.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekti:
0098022
0098019 - Dinamika hidratacije šećera (Mohaček-Grošev, Vlasta, MZOS ) ( CroRIS)

Ustanove:
Institut "Ruđer Bošković", Zagreb


Citiraj ovu publikaciju:

Mohaček Grošev, Vlasta; Gajović, Andreja
Crystal polymorphism in several saccharides // Jedanaesti godišnji sastanak Hrvatskog društva za elektronsku mikroskopiju
Zagreb, Hrvatska, 2003. (poster, domaća recenzija, neobjavljeni rad, znanstveni)
Mohaček Grošev, V. & Gajović, A. (2003) Crystal polymorphism in several saccharides. U: Jedanaesti godišnji sastanak Hrvatskog društva za elektronsku mikroskopiju.
@article{article, author = {Moha\v{c}ek Gro\v{s}ev, Vlasta and Gajovi\'{c}, Andreja}, year = {2003}, keywords = {electron microscopy, Raman spectroscopy, glyceraldehyde, glycolaldehyde, dihydroxyacetone}, title = {Crystal polymorphism in several saccharides}, keyword = {electron microscopy, Raman spectroscopy, glyceraldehyde, glycolaldehyde, dihydroxyacetone}, publisherplace = {Zagreb, Hrvatska} }
@article{article, author = {Moha\v{c}ek Gro\v{s}ev, Vlasta and Gajovi\'{c}, Andreja}, year = {2003}, keywords = {electron microscopy, Raman spectroscopy, glyceraldehyde, glycolaldehyde, dihydroxyacetone}, title = {Crystal polymorphism in several saccharides}, keyword = {electron microscopy, Raman spectroscopy, glyceraldehyde, glycolaldehyde, dihydroxyacetone}, publisherplace = {Zagreb, Hrvatska} }




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