Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Ian Horman"'
Autor:
Laurent B. Fay, Ian Horman
Publikováno v:
CHIMIA, Vol 51, Iss 10 (1997)
Because of the complexity of food matrices, analytical chemistry has a key role to play in the elucidation of food composition, food stability and its behaviour during processing. In this paper, the application of various analytical techniques (e.g.,
Externí odkaz:
https://doaj.org/article/5cf4e3d6c6834ceb96dd7960a4c1acbf
Autor:
Jean-Marc Aeschlimann, Doris Hartmann, Helmut Traitler, Jacques Bille, Ian Horman, Béatrice Alice Bescher Ninet
Publikováno v:
Systematic and Applied Microbiology. 15:76-81
Summary The cellular fatty acids (CFAs) of 22 selected strains representing the seven species of Listeria were analysed by gas-liquid chromatography (GLC). While no qualitative difference in CFAs content was observed, quantitative differences were de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0701075aeb7f5a12b84ea22faeb8750
https://doi.org/10.1016/s0723-2020(11)80142-6
https://doi.org/10.1016/s0723-2020(11)80142-6
Autor:
Helmut Traitler, Ian Horman
Publikováno v:
Journal of High Resolution Chromatography. 13:197-198
Le couplage de la chromatographie en phase gazeuse avec la spectrometrie de masse est realise au moyen d'un diviseur d'effluent. Detection simultanee en utilisant un detecteur a ionisation de flamme et un detecteur de masse nomme detecteur a piege d'
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41c8b6c8497406e1f88856355ca68b67
https://doi.org/10.1002/jhrc.1240130315
https://doi.org/10.1002/jhrc.1240130315
Autor:
Ian Horman, Bernard. Dreux
Publikováno v:
Helvetica Chimica Acta. 67:754-764
The determination of the dimerisation constant (KD) for the weak self-association of a compound C in dilute solution according to the equilibrium, 2C⇌C2 is described. The method uses chemical shifts measured on a series of solutions of C at differe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab2996dd34ca4b8e137d11bcc7b301c3
https://doi.org/10.1002/hlca.19840670316
https://doi.org/10.1002/hlca.19840670316
First field free metastables as a structural probe for differentiating isomers of aliphatic alcohols
Autor:
Ian Horman
Publikováno v:
Biological Mass Spectrometry. 10:343-346
In the electron impact mass spectra of esters of aliphatic alcohols, a series of first field free region metastables are observed for the formation of the acylium ion, [R.CO]+, from a set of precursor ions created by fragmentation at each successive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f63747a68d6dd6c7e7532b7c689c5dd
https://doi.org/10.1002/bms.1200100507
https://doi.org/10.1002/bms.1200100507
Publikováno v:
Helvetica Chimica Acta. 66:2342-2345
Differences in the distribution of deuterium at individual atomic sites in vanillin samples are revealed by 2H-NMR measurements, and can be used to determine whether the sample is of natural or synthetic origin.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb4dcc1dcab92b7e1de755c795c4a980
https://doi.org/10.1002/hlca.19830660745
https://doi.org/10.1002/hlca.19830660745
Autor:
Thomas Schweizer, Ian Horman
Publikováno v:
Carbohydrate Research. 95:61-71
Three α- d -galactopyranosylcyclitols previously isolated from soya bean are shown to be 1 d -2- O -(α- d -galactopyranosyl)-4- O -methyl- chiro -inositol, 1 d -5- O -(α- d -galactopyranosyl)-4- O -methyl- chiro -inositol, and 1 d -2- O -(α- d -g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::237bc395017ca6e59bc381bbd181f381
https://doi.org/10.1016/s0008-6215(00)85295-7
https://doi.org/10.1016/s0008-6215(00)85295-7
Autor:
Ian Horman
Publikováno v:
Helvetica Chimica Acta. 67:1478-1483
Fast-atom-bombardment (FAB) mass spectra have been used to establish or confirm the nature of the yellow-product and open-chain forms of thiamine produced in the presence of excess (5 mol-equivb.) of strong base. Time-dependent changes in 1H-NMR spec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e0c744ef2a0cc551730ee1aaf6a2687
https://doi.org/10.1002/hlca.19840670609
https://doi.org/10.1002/hlca.19840670609
Autor:
Ian Horman, Bernard. Dreux
Publikováno v:
Helvetica Chimica Acta. 68:72-75
Displacements of 1H-NMR chemical shifs for caffeine in D2O solution as a function of concentration conform to the behaviour expected for pure dimer formation according to the equilibrium 2(caffeine)⇄(caffeine)2 with a statistical probability of at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a7cdfd1bee333a65839add8bdca7a61
https://doi.org/10.1002/hlca.19850680109
https://doi.org/10.1002/hlca.19850680109
Publikováno v:
Journal of High Resolution Chromatography. 12:308-315
Fatty acids, as their methyl esters (FAMES), are routinely analyzed from a wide variety of plant and animal tissues and fluids. Samples have mainly been analyzed to date using capillary GC with FID detection. However, FID detection is non-specific, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48c4b5aab3a674a017e8fbad59ca629f
https://doi.org/10.1002/jhrc.1240120514
https://doi.org/10.1002/jhrc.1240120514