Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Marc A. Alvarez"'
Autor:
Marc A. Álvarez
A floodplain is a flat or nearly flat land adjacent to a stream or river that experiences occasional or periodic flooding. It includes the floodway, which consists of the stream channel and adjacent areas that carry flood flows, and the flood fringe,
Autor:
Michelle A. Espy, Michael T. Janicke, Robert F. Williams, Marc A. Alvarez, Jacob Yoder, Paisner Scarlett Widgeon, Rachel K. Frankle, Derrick C. Kaseman
Publikováno v:
Analytical Chemistry. 92:6918-6924
A new method for measurement of elemental analysis by nuclear magnetic resonance (NMR) of unknown samples has been discussed here as a quick and robust means to measure elemental ratios without the...
Autor:
Scarlett, Widgeon Paisner, Michael T, Janicke, Derrick C, Kaseman, Rachel K, Frankle, Jacob L, Yoder, Marc A, Alvarez, Michelle A, Espy, Robert F, Williams
Publikováno v:
Analytical chemistry. 92(10)
A new method for measurement of elemental analysis by nuclear magnetic resonance (NMR) of unknown samples is discussed here as a quick and robust means to measure elemental ratios without the use of internal or external calibration standards. The det
Autor:
Derrick C. Kaseman, Per E. Magnelind, Paisner Scarlett Widgeon, Algis V. Urbaitis, Robert F. Williams, Michelle A. Espy, Marc A. Alvarez, Jacob Yoder, Michael T. Janicke, Pulak Nath
Publikováno v:
Review of Scientific Instruments. 91:054103
In recent years, it has been realized that low and ultra-low field (mT-nT magnetic field range) nuclear magnetic resonance spectroscopy can be used for molecular structural analysis. However, spectra are often hindered by lengthy acquisition times or
Autor:
Rodolfo A. Martinez, Clifford J. Unkefer, David R. Glass, Erick Gabriel Ortiz, Marc A. Alvarez
Publikováno v:
Journal of Labelled Compounds and Radiopharmaceuticals. 57:338-341
The 1,3-dithiane is a protected formaldehyde anion equivalent that could serve as a useful labeled synthon. We report a facile synthesis of 1,3-[2-13C]- and 1,3-[2-13C, 2-2H2]dithiane in two steps from [13C]- or [13C, 2H3]methyl phenyl sulfoxide. We
Autor:
Siegfried N. Lodwig, Ernesto Juarez, David R. Glass, Marc A. Alvarez, Rodolfo A. Martinez, Erick Gabriel Ortiz, Clifford J. Unkefer
Publikováno v:
Journal of Labelled Compounds and Radiopharmaceuticals. 56:31-35
We have developed large-scale efficient procedures for the conversion of commercially available [(13) C]- or [(2) H3 ,(13) C]methanol and (13) CO2 or (13) C-labeled bromoacetic acid to 2-(phenylthio)[1,2-(13) C2 ]-, [1-(13) C]-, and [2-(13) C]acetic
Autor:
Marc A. Alvarez, Louis A. Silks, Philip L. Stotter, Rodolfo A. Martinez, Jurgen G. Schmidt, Clifford J. Unkefer, Stephen P. Velarde
Publikováno v:
Organic Process Research & Development. 6:851-854
We have developed a large-scale “one-pot” procedure for the conversion of commercially available [13C]- or [2H3,13C]methanol to [13C]- or [2H3,13C]methyl phenyl sulfide. [13C]methyl phenyl sulfide is a potentially versatile, chemically stable, an
Publikováno v:
Journal of labelled compoundsradiopharmaceuticals. 57(5)
The 1,3-dithiane is a protected formaldehyde anion equivalent that could serve as a useful labeled synthon. We report a facile synthesis of 1,3-[2-(13)C]- and 1,3-[2-(13)C, 2-(2)H2]dithiane in two steps from [(13)C]- or [(13) C, (2)H3 ]methyl phenyl
Autor:
Rodolfo A, Martinez, David R, Glass, Erick G, Ortiz, Marc A, Alvarez, Ernesto, Juarez, Siegfried N, Lodwig, Clifford J, Unkefer
Publikováno v:
Journal of labelled compoundsradiopharmaceuticals. 56(2)
We have developed large-scale efficient procedures for the conversion of commercially available [(13) C]- or [(2) H3 ,(13) C]methanol and (13) CO2 or (13) C-labeled bromoacetic acid to 2-(phenylthio)[1,2-(13) C2 ]-, [1-(13) C]-, and [2-(13) C]acetic
Publikováno v:
Canadian journal of microbiology. 46(3)
Many enteric bacteria express a type I oxygen-insensitive nitroreductase, which reduces nitro groups on many different nitroaromatic compounds under aerobic conditions. Enzymatic reduction of nitramines was also documented in enteric bacteria under a