Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Bernard Radziuk"'
A scanning echelle monochromator for ICP-OES with dynamic wavelength stabilization and CCD detection
Publikováno v:
Journal of Analytical Atomic Spectrometry. 15:851-861
The design and evaluation of a scanning spectrometer with CCD detection are described. The spectrometer is a double monochromator employing a CaF2 prism to pre-select a spectral region equivalent to a single order for admission into an echelle gratin
Autor:
Bernard Radziuk, Cornelius J. Rademeyer, Paolo Tittarelli, Natalya Romanova, Yngvar Thomassen
Publikováno v:
Journal of Analytical Atomic Spectrometry. 12:81-84
The thermal behaviour during pyrolysis and of the vapour phase during atomization for Cd, Pb and Se in acid-digested whole blood using Ir-sputtered tubes is described. The performance of Ir as a permanent modifier was affected unfavourably by the com
Autor:
Desmond N. Wichems, Clare M. M. Smith, Peter L. Lundberg, James M. Harnly, Juan C. Ivaldi, Bernard Radziuk
Publikováno v:
Journal of Analytical Atomic Spectrometry. 12:617-627
A commercially available echelle spectrometer with a segmented array charge coupled detector (SCD) was used with a xenon arc lamp and graphite furnace atomizer for continuum source atomic absorption spectrometry (CS-AAS). Approximately 67% of the spe
Extended calibration ranges for continuum source atomic absorption spectrometry with array detection
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 51:1055-1079
Computer modeling has been used to construct calibration curves and relative concentration error plots for continuum source atomic absorption spectrometry with array detection and graphite furnace atomization. Model results are compared with experime
Publikováno v:
Scopus-Elsevier
The results of an investigation of the three-dimensional distribution of radiant intensity in the probing radiation beam produced in a conventional atomic absorption spectrometer by hollow cathode lamps and electrodeless discharge lamps are presented
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 51:829-837
New instrumentation for the speciation of mercury is described, and is applied to the analysis of natural water samples. The separation of mercury species is effected using gas chromatography of derivatized mercury species on a widebore capillary col
Autor:
Michael R. Sperling, Bernhard Welz, Konstantin Yu. Nagulin, Bernard Radziuk, Albert Kh. Gilmutdinov
Publikováno v:
Applied Spectroscopy. 50:483-497
The spatial distribution of radiant intensity from electrodeless discharge lamps (EDLs) used as radiation sources in atomic absorption spectrometry is investigated with a digital photodiode array imaging system. Intensity distribution over the radial
Publikováno v:
J. Anal. At. Spectrom.. 10:127-136
The design and implementation of a complete instrument system for simultaneous analysis of up to four elements by electrothermal atomic absorption spectrometry is described. The system combines the high throughput per unit spectral bandpass of an ech
Publikováno v:
Scopus-Elsevier
The development and characterization is described of a solid-state detector for simultaneous multielement electrothermal atomic absorption spectrometry (ETAAS) using combined line sources. Photodiode technology providing high quantum efficiency is ma
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 49:875-891
Electrothermal volatilization flame atomic absorption spectrometry (ETV-FAAS) was used for element-specific detection in the vapour evolved during heating of a graphite furnace (GF). The studies, combined with graphite furnace atomic absorption spect