Zobrazeno 1 - 10
of 136
pro vyhledávání: '"Wolfhard Wegscheider"'
Autor:
Wolfhard Wegscheider
Publikováno v:
Proceedings, Vol 55, Iss 1, p 24 (2020)
One of the more technically challenging concepts in quality assurance is the appropriate quantification of the uncertainty of measurement. Consequently, there must be an adequate emphasis on didactic approaches to ascertain that the student is not ju
Externí odkaz:
https://doaj.org/article/c391709873644811be57c4c65eaf5f59
Autor:
Jürgen Zanghellini, Matthias G. Steiger, Wolfhard Wegscheider, Stephan Hann, Gunda Koellensperger, Teresa Mairinger, David A. Peña
Publikováno v:
Analytical and Bioanalytical Chemistry
In the field of metabolic engineering 13C-based metabolic flux analysis experiments have proven successful in indicating points of action. As every step of this approach is affected by an inherent error, the aim of the present work is the comprehensi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6046ab86ad6c0514b8261a8dccc2fba
http://europepmc.org/articles/PMC5937919
http://europepmc.org/articles/PMC5937919
Publikováno v:
Journal of the Arab American University. 3:40-51
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb9bdcbab60925d617df0d2697156c8b
https://doi.org/10.12816/0044522
https://doi.org/10.12816/0044522
Publikováno v:
Journal of Analytical Sciences, Methods and Instrumentation. :130-136
A new method was developed in this work to account for inorganic Sb species interconversion during soil sample preparation and subsequent separation steps. The Sb(III) and Sb(V) concentrations at each investigated step in the analytical procedure wer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1a3b744ee016f236874ca89d85b8f89
https://doi.org/10.4236/jasmi.2013.32016
https://doi.org/10.4236/jasmi.2013.32016
Autor:
Umberto Sansone, Ilya Kuselman, Stephen L. R. Ellison, Ales Fajgelj, Wolfhard Wegscheider, Maria Belli
Publikováno v:
Accreditation and Quality Assurance. 12:563-567
Comparability and compatibility of proficiency testing (PT) results are discussed for schemes with a limited number of participants (less than 20–30) based on the use of reference materials (RMs) as test items. Since PT results are a kind of measur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d423fc120ee21eb66959f749c0e45d3d
https://doi.org/10.1007/s00769-007-0309-y
https://doi.org/10.1007/s00769-007-0309-y
Autor:
Wolfhard Wegscheider, Maria Belli, Ales Fajgelj, Umberto Sansone, Stephen L. R. Ellison, Ilya Kuselman
Publikováno v:
Accreditation and Quality Assurance. 12:391-398
A metrological background for the selection and use of proficiency testing (PT) schemes for a limited number N of laboratories-participants (less than 20–30) is discussed. The following basic scenarios are taken into account: (1) adequate matrix ce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87b8955887b40102395ceb40cc8340ae
https://doi.org/10.1007/s00769-006-0247-0
https://doi.org/10.1007/s00769-006-0247-0
Publikováno v:
European Journal of Lipid Science and Technology. 119:1600468
The aim of this work was to establish suitable chemometric techniques for establishing provenance of pumpkin seed and pumpkin seed oil from the regions of Austria, China and Russia, in order to protect the authentic Austrian products from fraud and m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88ff13a92859b5b14197d6ac4d2823ee
https://doi.org/10.1002/ejlt.201600468
https://doi.org/10.1002/ejlt.201600468
Autor:
R.F. Walker, Steve Ellison, Jean Pauwels, Kaj Heydorn, B. te Nijenhuis, S. Burke, M. Månsson, Wolfhard Wegscheider
Publikováno v:
Accreditation and Quality Assurance. 6:274-277
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b260ce4c98cd2e0962cbed4784f5d95b
https://doi.org/10.1007/s007690100341
https://doi.org/10.1007/s007690100341
Publikováno v:
The Analyst. 126:322-328
A method for the determination of low Ru, Pd, Re, Os, Ir and Pt abundances in geological reference materials by isotope dilution inductively coupled plasma mass spectrometry (ICP-MS) after acid digestion in a high pressure asher (HPA-S) is presented.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec9c17764454af5c80021179d215fba7
https://doi.org/10.1039/b007575m
https://doi.org/10.1039/b007575m
Publikováno v:
Journal of Analytical Atomic Spectrometry. 16:417-420
The analytical investigation of ancient manuscripts for conservation purposes has been carried out. Inductively coupled plasma mass spectrometry (ICP-MS) was used to determine the elemental composition (23Na, 107Ag, 109Ag, 206Pb, 207Pb, 208Pb, 209Bi,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8ecbed38e4ee8cd7923d2bcb260bc5b
https://doi.org/10.1039/b009465j
https://doi.org/10.1039/b009465j