Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Colin D. Costin"'
Publikováno v:
Journal of the American Oil Chemists' Society. 87:973-980
Direct extraction methods for the quantitation of sterols and steryl esters (SE) in foods, beverages and concentrates as free sterols (trimethylsilane ether derivatives) by gas chromatography with flame ionization detection (GC/FID) are introduced. T
Publikováno v:
Journal of the American Oil Chemists' Society. 86:111-118
A common detector for the analysis of sterols and sterol concentrates by gas chromatography is the flame ionization detector (FID). The detector measures the response of ions from a molecule as it is pyrolyzed in a hydrogen flame. The response is rel
Publikováno v:
Analytical Chemistry. 76:2725-2733
A theoretical model for a recently developed microscale molecular mass sensor (micro-MMS) is presented. The micro-MMS employs a widely applicable technique of measuring the refractive index gradient (RIG) in a microchannel created after two adjacent
Autor:
Gamal Khalil, Martin Gouterman, James B. Callis, Jim Crafton, Larry R. Dalton, Grant Jones, Colin D. Costin, Severin Grenoble
Publikováno v:
Sensors and Actuators B: Chemical. 97:13-21
Pressure-sensitive paint (PSP) is playing an important role in aerodynamic testing. Its use provides a number of advantages over discrete pressure taps traditionally used on conventional wind tunnel models: (i) obtaining continuous quantitative press
Autor:
Robert E. Synovec, Colin D. Costin, Roy K. Olund, Ana Kristine Torgerson, Bethany A. Staggemeier
Publikováno v:
Journal of Chromatography A. 1013:77-91
We report a microchip-based detection scheme to determine the diffusion coefficient and molecular mass (to the extent correlated to molecular size) of analytes of interest. The device works by simultaneously measuring the refractive index gradient (R
Autor:
Robert E. Synovec, Colin D. Costin
Publikováno v:
Analytical Chemistry. 74:4558-4565
A detection scheme that measures the refractive index gradient (RIG) between adjacent laminar flows in a microfluidic device has been used to develop a microscale-molecular weight sensor. The behavior of low Reynolds number flows has been well docume
Autor:
Stephen Ching, Edmond Green, Martin Gouterman, Biniam Zelelow, Jeff Yearyean, Colin D. Costin, Gamal Khalil, Sebastien Gouin, Martin Sadilek, River Wan, Lisa M Coyle
Publikováno v:
Journal of Porphyrins and Phthalocyanines. :135-145
Ni , Zn , Pd and Pt tetra(pentafluorophenyl)porpholactone (TFPL) were synthesized and identified by their optical and mass spectra. The lactone ring was produced from the parent free-base porphyrin using silver nitrate and oxalic acid with a yield of
Autor:
Sean A. Smith, Younan Xia, Lloyd W. Burgess, Paul G. Vahey, Anatol M. Brodsky, Colin D. Costin, Robert E. Synovec
Publikováno v:
Analytical Chemistry. 74:177-184
A versatile integrated analyzer with a flow-programmed injection strategy and multiwavelength detection is described with applications toward sampling, flow injection analysis, and capillary separations. Continuous near-real-time sampling is a major
Autor:
Edmond Green, Martin Gouterman, Eileen Puklin, Brenden Carlson, Hideaki Tanji, Colin D. Costin, Sergey Ponomarev, Sébastien Gouin
Publikováno v:
Journal of Applied Polymer Science. 77:2795-2804
The pressure sensitive paint (PSP) properties of a fluoroacrylic polymer, FIB, with the luminophor platinum tetra(pentafluorophenyl)porphine (PtTFPP) are presented. This paint forms a hard coating that displays Stern–Volmer plots with a high dynami
Autor:
Colin D, Costin, Roy K, Olund, Bethany A, Staggemeier, Ana Kristine, Torgerson, Robert E, Synovec
Publikováno v:
Journal of chromatography. A. 1013(1-2)
We report a microchip-based detection scheme to determine the diffusion coefficient and molecular mass (to the extent correlated to molecular size) of analytes of interest. The device works by simultaneously measuring the refractive index gradient (R