Zobrazeno 1 - 10
of 311
pro vyhledávání: '"U. Reus"'
Publikováno v:
Zeitschrift für Gerontologie und Geriatrie. 38:210-217
Auf Grund bisher luckenhafter Erkenntnisse zur Haufigkeit und den Begleitumstanden von Dekubitalgeschwuren in relativ unselektierten Kollektiven erhob der Medizinische Dienst der Krankenversicherung Westfalen-Lippe im Jahr 2003 im Rahmen der Pflegebe
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 59:1251-1257
The purpose of the present work is to investigate the suitability of TXRF technique to study the distribution of trace elements along human bones of the 13th century, to conclude about environmental conditions and dietary habits of old populations an
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 56:2275-2281
A standard-free calibration procedure for total-reflection X-ray fluorescence has been developed which is based on the Fresnel theory for the reflection and refraction of X-rays on surfaces at grazing incidence. The technique requires only a pure met
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 56:2107-2115
A one-step sample preparation by electro-deposition for total-reflection X-ray fluorescence (TXRF) analysis has been developed using a common three-electrode arrangement with a rotating disc as the working electrode. Several elements such as Cr, Mn,
Publikováno v:
Rechtsmedizin. 10:207-211
Teilmengen der im vorhergehenden Beitrag [17] beschriebenen Haare Heinrich Heines unterschiedlicher Herkunft wurden mit der hoch empfindlichen Multielementanalyse ("total reflection x-ray fluorescence", TXRF) bezuglich ihrer Mineralstoffgehalte unter
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 54:1505-1511
Variable incident angles in TXRF instrumentation open up new possibilities in the field of analytical quality assurance of TXRF measurements as well as the possibility of optimizing the measurement angle with respect to the sample carrier. Measuremen
Publikováno v:
Science of The Total Environment. 152:213-220
Moss samples of three different species have been analysed for trace elements using TXRF spectrometry. Approximately 20 elements could be determined, with detection limits being typically of the order of 0.2–0.5 μg/g. Accuracy of the results is ve
Publikováno v:
Fresenius' Journal of Analytical Chemistry. 348:218-225
In an interlaboratory study, 57 elements were assayed and 35 of them determined in cigarette smoke condensate of two different cigarette brands. The methods applied included inductively coupled plasma mass spectrometry, total reflection X-ray fluores
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 48:153-161
Pyrolytic boron nitride (PBN) is examined with respect to its suitability as a material for total-reflection X-ray fluorescence spectrometry (TXRF) sample carriers. Surface properties of polished specimens such as flatness and roughness were measured
Publikováno v:
Fresenius' Journal of Analytical Chemistry. :430-435
Samples of water and suspended particulate matter from the river Elbe were repeatedly analysed by means of TXRF spectrometry. In 10 independent determinations, no significant influence in the results by sample inhomogeneity was detectable for the aqu