Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Steven R, Goates"'
Publikováno v:
Applied Spectroscopy. 75:1461-1464
Often only small amounts of sample are available for spectroscopic analytical determinations. This work investigates the enhancement of signal in columns packed with silica particles. We propose that silica particles cause the light to scatter throug
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de273393123c6bb168bfae00286d152e
https://doi.org/10.1177/00037028211029312
https://doi.org/10.1177/00037028211029312
Publikováno v:
Journal of Chromatography A. 1417:73-78
Portable and compact instruments for separating and detecting organic compounds are needed in the field for environmental studies. This is especially the case for pollution studies as in-field detection of organic compounds helps identify sources of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61502fd9aae90d2ac5fbc275a13b1162
https://doi.org/10.1016/j.chroma.2015.09.015
https://doi.org/10.1016/j.chroma.2015.09.015
Publikováno v:
Analytical Chemistry. 84:1862-1870
In vibrationally resonant sum-frequency generation (VR-SFG) spectra, the resonant signal contains information about the molecular structure of the interface, whereas the nonresonant signal is commonly treated as a background and has been assumed to b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9f0f1456b24065f705d3fc189e4fc39
https://doi.org/10.1021/ac2032035
https://doi.org/10.1021/ac2032035
Publikováno v:
Journal of Chromatography A. 1216:5588-5593
Density gradients in packed capillary columns operating under the extreme pressure drops typical for solvating gas chromatography were investigated by on-column spectroscopic measurements and compared to a theoretical model. Laser-induced fluorescenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dab079ae329d9f1fca06e7c8797bc2b1
https://doi.org/10.1016/j.chroma.2009.05.042
https://doi.org/10.1016/j.chroma.2009.05.042
Publikováno v:
Journal of Chromatography A. 1216:5594-5599
To investigate how fluid compressibility affects efficiency in supercritical fluid separations, band dispersion along a packed capillary column was measured from on-column elution rate profiles obtained under solvating gas chromatography (SGC) condit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7cbfe22f9e5ca507e7352cd7f61a6975
https://doi.org/10.1016/j.chroma.2009.05.078
https://doi.org/10.1016/j.chroma.2009.05.078
Publikováno v:
Applied Spectroscopy. 63:108-111
Efforts to understand and optimize separations employing compressible mobile phases have been limited by a lack of understanding of the mobile phase density gradient. Mobile phase compressibility leads to gradients in linear velocity and solute reten
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ecb94b2646933a7a89277a88a5b44692
https://doi.org/10.1366/000370209787169803
https://doi.org/10.1366/000370209787169803
Publikováno v:
Langmuir. 15:1400-1409
Sum-frequency spectroscopy and ellipsometry have been used to study monolayers of the nonionic surfactants poly(ethylene glycol) monododecyl ethers (C12Em; m = 2−8) at the air−water interface. SF spectra were acquired for areas of 30−70 A2 per
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5678e42300d09b41ba6266ebbd2421a3
https://doi.org/10.1021/la9809675
https://doi.org/10.1021/la9809675
Publikováno v:
The Journal of Physical Chemistry. 99:13461-13466
The ring-closure reaction of M(CO){sub 5}L-L (M = W, Mo) where L-L denotes a bidentate ligand was chosen for its comparative independence of solvent properties to demonstrate the repulsive (or intrinsic) part of the activation volume. The ring-closur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ae017f30ef63d1ed21d60c446f62498
https://doi.org/10.1021/j100036a021
https://doi.org/10.1021/j100036a021
Publikováno v:
Review of Scientific Instruments. 66:222-226
A high‐pressure optical cell has been designed that achieves an effective separation between the chemical sample and the pressurizing medium and system. This design limits possible sample contamination and catalytic effects under supercritical flui
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25cb10828223411a9ed6349fde054fc2
https://doi.org/10.1063/1.1145262
https://doi.org/10.1063/1.1145262
Autor:
David J. Dixon, Steven R. Goates, Keith P. Johnston, Milton L. Lee, Sheldon R. Sumpter, Steven H. Page
Publikováno v:
The Journal of Supercritical Fluids. 6:95-101
Because the phase behavior of the mobile phase must be known before conclusions from supercritical-fluid chromatography (SFC) can be considered reliable, the phase behaviors of tri- n -butylphos-phate/C0 2 and acetone/CO 2 were thoroughly determined
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::200f18ff81f908c3c63aee3ce157bf52
https://doi.org/10.1016/0896-8446(93)90024-r
https://doi.org/10.1016/0896-8446(93)90024-r