Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Bojan Šoptrajanov"'
Autor:
Bojan Šoptrajanov
Publikováno v:
Macedonian Journal of Chemistry and Chemical Engineering, Vol 36, Iss 1, Pp 169-180 (2017)
The language of chemistry consists of symbols, words and expressions. The symbols of the chemical elements are the most common ones in practically any text in chemistry – the words denote chemical entities and chemical properties while the expressi
Externí odkaz:
https://doaj.org/article/f00010b3b5cc4e2b947c15a21692751e
Autor:
Bojan Šoptrajanov
Publikováno v:
Macedonian Journal of Chemistry and Chemical Engineering, Vol 34, Iss 1, Pp 1-17 (2015)
It is both rewarding and difficult to write a review article about the contributions of academician Gligor Jovanovski to the study of minerals from Macedonia. It is rewarding because these contributions are exceptional scientifically and, in addit
Externí odkaz:
https://doaj.org/article/1f061254d3e54491b91995dc0fb35b8e
Publikováno v:
Macedonian Journal of Chemistry and Chemical Engineering, Vol 27, Iss 1, Pp 1-8 (2008)
Infrared and Raman vibrational spectra of magnesium disaccharinate heptahydrate, Mg(sac)2⋅7H2O, in the 4000–380 cm–1 region (for infrared) and 4000–100 cm–1 region (for Raman) were studied. The assignment of the spectra was based on the exp
Externí odkaz:
https://doaj.org/article/ba984c51ef7f436eaf3355d62aaf31d0
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 183:387-394
Infrared and Raman spectra of Mg2KH(PO4)2·15H2O and Mg2KH(AsO4)2·15H2O and a series of their partially deuterated analogues were recorded and analyzed. Compounds of the type Mg2KH(XO4)2·15H2O (X = P, As) are little-known and a rare case of phospha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e7504718dcfb25d780932a00b5c158f
https://doi.org/10.1016/j.saa.2017.04.031
https://doi.org/10.1016/j.saa.2017.04.031
Publikováno v:
Contributions, Section of Natural, Mathematical and Biotechnical Sciences. 35
As is well-known, the chemical knowledge is acquired at three levels: the macroscopic and tangible (what can be seen, touched and/or smelt); the sub-microscopic (atoms, molecules, ions and structures) and the representational (symbols, formulae, equa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9856137087933ae20b64a6e3c648acde
https://doi.org/10.20903/csnmbs.masa.2014.35.1.52
https://doi.org/10.20903/csnmbs.masa.2014.35.1.52
Publikováno v:
Contributions, Section of Natural, Mathematical and Biotechnical Sciences. 34
The easy oxidation of the substances containing aldehyde groups using a mild oxidizing agents, such as solutions containing copper(II) or silver(I) ions, can provide a mean to detect the presence of carbohydrates known as reducing sugars. However, us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70f28d11c37561cce3fd3a1bbd00cbbb
https://doi.org/10.20903/csnmbs.masa.2013.34.1-2.40
https://doi.org/10.20903/csnmbs.masa.2013.34.1-2.40
Publikováno v:
Contributions, Section of Natural, Mathematical and Biotechnical Sciences. 30
A b s t r a c t: Some of the advantages and imperfections in the cases when the X-ray powder diffraction (XRPD), Fourier transform infrared (FTIR) or Raman vibrational spectroscopy are used as a separated techniques in the process of the mineral dete
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec9da3723765d94d8d28c6a8738fdb64
https://doi.org/10.20903/csnmbs.masa.2009.30.1-2.22
https://doi.org/10.20903/csnmbs.masa.2009.30.1-2.22
Publikováno v:
Contributions, Section of Natural, Mathematical and Biotechnical Sciences. 27
A b s t r a c t: In order to get a more exact basis for the band assignments in the case of dichlorodioxochromium(VI) complex with 1,10-phenanthroline (especially regarding the order of appearance of the antisymmetric and symmetric CrO2 stretching ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c04498144e37183fc5a1f6a33d0e146
https://doi.org/10.20903/csnmbs.masa.2006.27.1-2.9
https://doi.org/10.20903/csnmbs.masa.2006.27.1-2.9
Autor:
Violeta Koleva, Vladimir M. Petruševski, Viktor Stefov, Zuldjevat Abdija, Tomče Runčevski, Bojan Šoptrajanov, M. Najdoski, Robert E. Dinnebier
Publikováno v:
Vibrational Spectroscopy. 68:122-128
Infrared and Raman spectra of cubic magnesium caesium phosphate hexahydrate, MgCsPO4·6H2O (cF100), and its partially deuterated analogues were analyzed and compared to the previously studied spectra of the hexagonal analogue, MgCsPO4·6H2O (hP50). T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b98c16820fa3dd4632c3befffe9b0ae8
https://doi.org/10.1016/j.vibspec.2013.06.003
https://doi.org/10.1016/j.vibspec.2013.06.003
Publikováno v:
Creative Education. :619-631
A study was conducted to identify concepts about the particulate nature of matter among secondary- and high-school students (N = 187) and to address some misconceptions regarding this topic, especially the misunderstandings related to the vague ideas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::028d0a681add4276e6a3c36fdedcedea
https://doi.org/10.4236/ce.2012.35091
https://doi.org/10.4236/ce.2012.35091