Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Stuart E. Scheppele"'
Publikováno v:
Analytical chemistry. 68(1)
An all-glass heated inlet system has been interfaced to a dual-trap Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometer. The inlet vaporizes a mixture of species of widely different boiling points, and the interface maintains a large
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e0ca774352fdcd6319cf7db3fb96967
https://pubmed.ncbi.nlm.nih.gov/21619221
https://pubmed.ncbi.nlm.nih.gov/21619221
Publikováno v:
Energy & Fuels. 5:360-370
Ion intensity is an important factor in determining the repeatability of type analyses. Consideration of ion intensity is exceedingly important in methods of type analysis employing double-focusing mass spectrometers because the sensitivity of these
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3dfa31d298b46837800e44c805b4a66c
https://doi.org/10.1021/ef00027a002
https://doi.org/10.1021/ef00027a002
Autor:
Stuart E. Scheppele, Cherlynlavaughn Bradley, Mark E. Bambacht, Richard E. Pauls, Donald C. Cronauer
Publikováno v:
Energy & Fuels. 4:236-242
The concentrations of moderate to low boiling phenolics were determined by isolating and acidic concentrate by extraction with sodium hydroxide, freeing the phenolics by acid addition, and analyzing the fraction by gas chromatography/mass spectrometr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c2370875d5556337e06138cd02e1712
https://doi.org/10.1021/ef00021a004
https://doi.org/10.1021/ef00021a004
Autor:
Stuart E. Scheppele
Publikováno v:
Encyclopedia of Analytical Chemistry
The complex chemistry and chemical engineering of fossil fuel materials including petroleums, coal-derived liquids, tar sands, shale oils, refinery streams and refined products can often be adequately simplified by expressing the composition of these
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cd08e27c3992fdb61266a3363f7e43d
https://doi.org/10.1002/9780470027318.a1808
https://doi.org/10.1002/9780470027318.a1808
Publikováno v:
The Journal of Organic Chemistry. 40:1902-1906
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fc209917ab98ed9a3c0e8e96ad3fc85
https://doi.org/10.1021/jo00901a006
https://doi.org/10.1021/jo00901a006
Publikováno v:
Journal of the American Chemical Society. 97:6165-6169
Secondary $alpha$-deuterium isotope effects were obtained for the thermal decomposition of 1.1'-diphenylazoethane (I) and 1,1'-diphenylazoethane- 1,1'-d$sub 2$ (I-d$sub 2$) at 103.90$sup 0$. Samples of I and I-d$sub 2$ prepared by (a) LiAlH$sub 4$ an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb361cccfe1ba6f14934853541215836
https://doi.org/10.1021/ja00854a036
https://doi.org/10.1021/ja00854a036
Publikováno v:
Journal of Chemical & Engineering Data. 30:183-189
The solubility of hydrogen in tetralin and several coal liquids was measured at high temperatures and pressures. A 4-component synthetic recycle solvent containing 43% tetralin, 38% 2-methylnaphthalene, 17% p-cresol and 2% 4-picoline was studied at t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97ef02edbb9a4ff482aee533c6f3a8f0
https://doi.org/10.1021/je00040a016
https://doi.org/10.1021/je00040a016
Autor:
Stuart E. Scheppele
Publikováno v:
Chemical Reviews. 72:511-532
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f398c14b3602fdec7c7f45ac06878fa4
https://doi.org/10.1021/cr60279a004
https://doi.org/10.1021/cr60279a004
Autor:
Ronald D. Grigsby, Donald W. Whitaker, Keith F. Kinneberg, Stuart E. Scheppele, Susan D. Hinds, Ronald K. Mitchum
Publikováno v:
Organic Mass Spectrometry. 3:571-581
Mass spectra of acetophenone azine-d10 (II) and acetophenone azine-d6 (III) were obtained to ascertain the validity of the proposed mass spectral fragmentation mechanisms proposed for acetophenone azine (I). Data from II and III reveal that the [M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae75059d872380282f0dff212baf5844
https://doi.org/10.1002/oms.1210030506
https://doi.org/10.1002/oms.1210030506
Autor:
Stanley Seltzer, Stuart E. Scheppele
Publikováno v:
Journal of the American Chemical Society. 90:358-362
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9d4aa39c77ea2884a1e6502f87200d9
https://doi.org/10.1021/ja01004a027
https://doi.org/10.1021/ja01004a027