Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Robin L. Sheppard"'
Autor:
David J.W. Lawton, Tomislav Ivancic, Chieh-Min Cheng, Michael Thompson, Robin L. Sheppard, Chunliang Lu, John L. Pawlak
Publikováno v:
Industrial & Engineering Chemistry Research. 59:9787-9796
This paper examines different binary mixtures of anionic/nonionic surfactants using a new technique known as solvent-free extrusion emulsification (SFEE) to control the surface charge in resulting ...
Autor:
John L. Pawlak, A. Goger, Mark A. Arnould, Alexander N. Klymachyov, Michael Thompson, David J.W. Lawton, Robin L. Sheppard
Publikováno v:
Polymer Engineering & Science. 58:775-783
Solvent-free extrusion emulsification (SFEE) is a complex process using twin-screw extrusion to prepare solid-liquid dispersions of high viscosity polymers and has received little study to date on its inherent mechanisms. To gain rheological insights
Autor:
Robin L. Sheppard, Jack D. Henion
Publikováno v:
Analytical Chemistry. 69:477A-480A
Publikováno v:
Journal of Chromatography B: Biomedical Sciences and Applications. 685:335-342
A simple self-aligning liquid junction-electrospray interface for coupling a capillary electrophoresis (CE) system to an atmospheric pressure ionization (API) mass spectrometer (CE-MS) was developed. In contrast to previous liquid junction interfaces
Autor:
Jack D. Henion, Robin L. Sheppard
Publikováno v:
Analytical chemistry. 69(15)
A quantitative method has been developed for the determination of EDTA in human plasma and urine. The samples are prepared with automated anion-exchange solid-phase extraction using 100 microL of human plasma. The extracts are analyzed by capillary e
Autor:
Robin L. Sheppard, Jack D. Henion
Publikováno v:
Electrophoresis. 18(2)
An automated extraction procedure using solid-phase extraction (SPE) disk technology was developed for the qualitative and quantitative determination of ethylenediaminetetraacetic acid (EDTA) in water samples. The procedure involves conversion of all
Publikováno v:
Analytical chemistry. 67(13)
The enantiomers of both terbutaline and ephedrine were separated by capillary electrophoresis using electrolyte solutions of heptakis(2,6-di-O-methyl)-beta-cyclodextrin in low pH buffers. The analytes were detected by ion spray mass spectrometry usin