Zobrazeno 1 - 10
of 44
pro vyhledávání: '"J R, Hass"'
Publikováno v:
International Journal of Mass Spectrometry and Ion Processes. :611-623
1,2-diarylcyclopropanes are known to form the corresponding 3,5-diaryl-1,2-oxathiolane-oxides upon reaction with sulfur dioxide in the presence of trifluoroacetic acid. The reverse reaction, the elimination of sulfur dioxide from 3,5-diaryl-1,2-oxath
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9c83bde8111ccd27b741316b93041c6
https://doi.org/10.1016/s0168-1176(97)00192-4
https://doi.org/10.1016/s0168-1176(97)00192-4
Publikováno v:
Rapid communications in mass spectrometry : RCM. 14(20)
A series of 3,7-dialkyl-1,5-diphenyl-3,7-diazabicyclo[3.3. 1]nonan-9-ones was prepared, and the details of their fragmentation under electron ionization (EI) were elucidated. The molecular ions of each compound under consideration were quite abundant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::cb9983e7b5a439f72e57a80d71d461a9
https://pubmed.ncbi.nlm.nih.gov/11013425
https://pubmed.ncbi.nlm.nih.gov/11013425
Publikováno v:
IARC scientific publications. (108)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::767ae08f01f062ac50171d67f26a4f37
https://pubmed.ncbi.nlm.nih.gov/1817107
https://pubmed.ncbi.nlm.nih.gov/1817107
Autor:
T. Yu Samguina, Natalia Y. Tretyakova, V. A. Bakoulev, J. R. Hass, E. V. Predein, Albert T. Lebedev
Publikováno v:
European Journal of Mass Spectrometry. 3:217
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30181e13774d11739c613a948728b736
https://doi.org/10.1255/ejms.14
https://doi.org/10.1255/ejms.14
Publikováno v:
Analytical Chemistry. 59:1930-1937
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a949534661c3e94816d35a4369ad9bd
https://doi.org/10.1021/ac00142a009
https://doi.org/10.1021/ac00142a009
Publikováno v:
Analytical Letters. 16:1165-1175
The use of a direct liquid introduction probe with a short guard column as the method of sample introduction is explored. This technique is an alternative to the conventional direct probe method. The method is rapid, involatile compounds can be analy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6caa2b9f6a7602d13cd2fb45c436b984
https://doi.org/10.1080/00032718308077153
https://doi.org/10.1080/00032718308077153
Publikováno v:
Journal of Chromatography A. 242:77-96
Five classes of triazine herbicides were studied by combined high-performance liquid chromatography—mass spectrometry (HLPC—MS). Separations were done on a reversed-phase C 8 column, using acetonitrile—water as the mobile phase, followed by in-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e1acdd0ca3ca7a27194649d1763e71e
https://doi.org/10.1016/s0021-9673(00)87249-0
https://doi.org/10.1016/s0021-9673(00)87249-0
Publikováno v:
Organic Mass Spectrometry. 19:153-159
The mass spectra of 5,6,6a,7,12,12a-hexahydrobenzo[a]anthracene and 2-methoxy, 3-methoxy-, 4-methoxy and 1-methyl-4-methoxy derivatives are reported. Among the fragment ions observed under electron impact ionization, [C8H8]+· and [MC8H8]+· can be g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8e3f8a41c55ca871d28b403d463016f
https://doi.org/10.1002/oms.1210190402
https://doi.org/10.1002/oms.1210190402
Publikováno v:
Journal of Agricultural and Food Chemistry. 25:1330-1333
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cfd2ed6d183794b2722b77960e0b0c71
https://doi.org/10.1021/jf60214a005
https://doi.org/10.1021/jf60214a005
Publikováno v:
Journal of Chromatography A. 319:273-283
Chloride-attachment negative chemical ionization mass spectra can be generated by the addition of chlorinated solvent modifiers to the high-performance liquid chromatographic mobile phase in liquid chromatography—mass spectrometry. The observed mas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc028ac053a8d1b5cbef15a3463a63b5
https://doi.org/10.1016/s0021-9673(01)90564-3
https://doi.org/10.1016/s0021-9673(01)90564-3