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pro vyhledávání: '"William B. Barnett"'
Autor:
William B. Barnett
Publikováno v:
Analytical chemistry. 44(4)
Autor:
William B. Barnett
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 39:829-836
The equation is shown to be applicable in fitting the analytically useful concentration range of atomic absorption calibration curves. In this equation C is the concentration, A the observed absorbance, and the K's are coefficients which must be dete
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 40:1689-1703
The signal handling requirements for graphite furnace atomic absorption are much more demanding than those for flame atomic absorption. Graphite furnace signals change rapidly, background levels are higher, and signal interpretation needs are more ex
Autor:
William B. Barnett
Publikováno v:
Analytical Chemistry. 60:1169A-1175A
Most analytical instruments contain at least one microprocessor. William B. Barnett of The Perkin-Elmer Corporation discusses the concepts involved in good user interface design, including the special problems associated with analytical instrument so
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 41:991-997
Using a transverse, a.c. Zeeman system, with the magnet on the analyte, background correction is performed at the exact analyte wavelength. As a result, nearly all of the spectral interferences associated with continuum correction are eliminated. Err
Autor:
William B. Barnett, Herbert L. Kahn
Publikováno v:
Analytical Chemistry. 44:935-939
Autor:
Herbert L. Kahn, William B. Barnett
Publikováno v:
Clinical Chemistry. 18:923-927
Two atomic absorption techniques, acid digestion followed by conventional flame analysis and direct analysis of solid samples with the graphite furnace, were compared for the determination of copper in fingernails. Nail samples, from 11 persons, cont
Publikováno v:
Journal of Analytical Atomic Spectrometry. 1:443
Although graphite furnace atomic absorption spectrometry is one of the most sensitive techniques for trace element determinations, the analysis of solid materials can be challengingly difficult. As no dissolution is used, none of the sample matrix is
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