Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Andrea Held"'
Autor:
Ulf Jacobsson, Rita La Spina, Claudia Cella, Douglas Gilliland, John Seghers, Dora Mehn, Andrea Held, Elzbieta Stefaniak, Håkan Emteborg
Publikováno v:
Analytical and Bioanalytical Chemistry
Validation of analytical methods for measurements of microplastics (MP) is severely hampered because of a general lack of reference materials, RM. There is a great need to develop such reference materials. This study presents a concept of three-compo
Autor:
Steven J. Choquette, Håkan Emteborg, Stefanie Trapmann, Andrea Held, Sook-Kyung Kim, Thomas P. J. Linsinger, Doris Florian, Ulrich Panne, Stephen L. R. Ellison, Lindsey G. Mackay, Sylvia G. Sander, Pearse McCarron, Maria Fernandes-Whaley
Publikováno v:
Standartnye Obrazcy, Vol 15, Iss 2, Pp 7-13 (2019)
Accreditation and quality assurance : journal for quality, comparability and reliability in chemical measurement
Accreditation and quality assurance : journal for quality, comparability and reliability in chemical measurement
The meeting was organised by the European Commission’s Joint Research Centre and held at the JRC-Geel site on 22–23 February 2018. It was a follow-up of a similar meeting held in 2009. The objective of the meeting was to exchange information abou
Publikováno v:
Analytical and Bioanalytical Chemistry
The existing Air Quality Directive 2008/50/EC establishes within the European Union (EU) member states limit values for fine air particulate matter (PM2.5) including the possibility to discount natural sources of pollution when assessing compliance w
Autor:
John Seghers, Håkan Emteborg, Marie-France Tumba-Tshilumba, Andrea Held, James Snell, Giovanni Emma, Jean Charoud-Got, Anna Santoro
Publikováno v:
Analytical and Bioanalytical Chemistry. 409:7121-7131
A reference material of a PM2.5-like atmospheric dust material has been prepared using a newly developed method. It is intended to certify values for the mass fraction of SO4 2−, NO3 −, Cl− (anions) and Na+, K+, NH4 +, Ca2+, Mg2+ (cations) in t
Publikováno v:
TrAC Trends in Analytical Chemistry. 89:34-40
A number of different digestion methods, including aqua regia extraction following two ISO guides were used in an inter-laboratory comparison study. The results obtained showed comparable values for the total and aqua regia extractable content of As,
Autor:
Stephen A. Wise, Annarita Baldan, Valnei S. Cunha, Paul J. Brewer, Adriaan M. H. van der Veen, Richard J. C. Brown, Hugo Ent, Romeu J. Daroda, Michele M. Schantz, Andrea Held, Gavin O'Connor, Manuela Ulberth-Buchgraber
Publikováno v:
Accreditation and Quality Assurance. 18:19-28
There is an increasing demand to accurately measure the quality of biofuel products (e.g. biodiesel and bio-ethanol). This demand is driven in Europe by directives promoting the use of renewable sources of energy and worldwide by national and interna
Autor:
Andrea Held, Manuela Ulberth-Buchgraber, Annarita Baldan, Brian E. Lang, Richard J. C. Brown, Romeu J. Daroda, Michele M. Schantz, Ruth Hearn, Valnei S. Cunha, Adriaan M. H. van der Veen, Monica Potalivo, Hugo Ent, Paul J. Brewer
The results of an interlaboratory comparison, using various measurement methods to carry out biodiesel testing, are presented and the findings are discussed. The interlaboratory comparison was organised within the framework of an EU-funded project ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4197ed25865096cfb14ff4efa6902755
http://rd.springer.com/article/10.1007/s00769-012-0947-6
http://rd.springer.com/article/10.1007/s00769-012-0947-6