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of 21
pro vyhledávání: '"Eric J, Davis"'
Autor:
Eric J. Davis, Brian H. Clowers
Publikováno v:
HardwareX, Vol 13, Iss , Pp e00382- (2023)
Ion Mobility Spectrometry (IMS) provides low ppbv detection limits for gas-phase or aqueous analytes. These instruments rely an electric field to produce ion motion. This electric field is typically 200–600 V/cm with a 15 cm cell, requiring an HV s
Externí odkaz:
https://doaj.org/article/c463ddd15a5546fabfa7e0f78f180c44
Autor:
Kraig A. Wheeler, Eric J. Davis, Trisha A. Russell, Karen E. Stevens, Deanna Dahlke Ojennus, Kerry L. Breno
Publikováno v:
Journal of Chemical Education. 98:4078-4087
The COVID-19 pandemic resulted in the mass shutdown of universities across the United States in the spring of 2020. As the pandemic progressed, regional regulations resulted in a broad range of teaching modalities for the 2020-2021 academic year. Whi
Publikováno v:
Analytical and Bioanalytical Chemistry. 413:6905-6915
Publikováno v:
Analytical and bioanalytical chemistry. 413(28)
Publikováno v:
Talanta. 224
The interchange between electrospray ionization (ESI) and corona discharge ionization (CDI) with respect to applied bias on the needle is customarily placed at the point where light production begins at the tip of the needle. If a liquid sample is fl
Publikováno v:
Journal of Chemical Education. 95:672-677
Additive manufacturing (3D printing) is a technology with near-unlimited potential for the chemical educator. However, its adoption into higher education has been limited by the dual requirements of expertise in 3D printing and 3D computer-aided desi
Autor:
Eric J. Davis, Carolyn Saba, Gordon A. Anderson, Luke Garcia, Gabriela Manocchio, Brian H. Clowers
Publikováno v:
International Journal for Ion Mobility Spectrometry. 20:87-93
Excluding the ion source, an ion mobility spectrometer is fundamentally comprised of drift chamber, ion gate, pulsing electronics, and a mechanism for amplifying and recording ion signals. Historically, the solutions to each of these challenges have
Publikováno v:
Journal of Chemical Education. 94:451-457
Presented is a project-based learning (PBL) laboratory approach for an upper-division environmental chemistry or quantitative analysis course. In this work, a combined laboratory class of 11 environmental chemistry students developed a method based o
Autor:
Herbert H. Hill, Jessica A. Tufariello, Eric J. Davis, William Siems, Kristopher F. Grows, Charles S. Harden
Publikováno v:
International Journal for Ion Mobility Spectrometry. 18:95-104
The current analytical method for the determination of fatty acids is by GC-FAMEs (gas chromatography-Fatty Acid Methyl Esters). GC-FAMEs consist of a time-consuming esterification process to increase the volatility and decrease the polarity of fatty
Autor:
Elijah Roth, Ken Cheung, Christopher Veldhuizen, Nicole Zalewski, Eric J. Davis, Joel Coeler, Jonathan Dick, Steve Pauls
Publikováno v:
Journal of Chemical Education. 92:163-166
In this laboratory experiment, lower- and upper-division students dissolved bismuth subsalicylate tablets in acid and precipitated the resultant Bi3+ in solution with sodium phosphate for a gravime...