Preparation of candidate certified reference materials for the quality control of EDTA-and acetic acid-extractable trace metal determinations in sewage sludge-amended soil and terra rossa soil

1995 ◽  
Vol 120 (1-4) ◽  
pp. 289-300 ◽  
Author(s):  
Philippe Quevauviller ◽  
Gemma Rauret ◽  
Allan Ure ◽  
Roser Rubio ◽  
Jos�-F�rmin L�pez-S�nchez ◽  
...  
Keyword(s):  
Quality Control ◽  
Acetic Acid ◽  
Sewage Sludge ◽  
Trace Metal ◽  
Reference Materials ◽  
Certified Reference Materials ◽  
Terra Rossa ◽  
Amended Soil

scholarly journals Production and Use of BCR Reference Materials for Quality Assurance in Environmental Analysis: An Update

2001 ◽  
Vol 84 (6) ◽  
pp. 1786-1792 ◽  
Author(s):  
Philippe Quevauviller
Keyword(s):  
Quality Control ◽  
Quality Assurance ◽  
Reference Materials ◽  
Environmental Analysis ◽  
Control Charts ◽  
Certified Reference Materials ◽  
Background Information ◽  
Analytical Quality Control ◽  
Analytical Quality ◽  
Invaluable Tool

Abstract Reference materials represent an invaluable tool for analytical quality control. Certified Reference Materials (CRMs) are used for the validation of methods, whereas various types of (uncertified) Reference Materials (RMs) are used for routine quality control (establishment of control charts) and interlaboratory testing (e.g., proficiency testing). This paper provides background information on the production and use of environmental RMs and describes recent CRMs produced by the BCR (European Commission) for quality assurance in environmental analysis.

Experience with Certified Reference Material Proficiency Testing for Quality Control of Wheat

1998 ◽  
Vol 6 (A) ◽  
pp. A53-A61
Author(s):  
Judit Budai ◽  
Judit Fükó
Keyword(s):  
Quality Control ◽  
Reference Material ◽  
Proficiency Testing ◽  
Reference Materials ◽  
Certified Reference Material ◽  
Certified Reference Materials ◽  
Long Term Stability ◽  
Determining Factors ◽  
Chemical Section

The Chemical Section of OMH1,2 embarked on the preparation of a series of wheat samples as Certified Reference Materials (CRMs) in 1992. The certification processes were carried out according to the recommendations of ISO. Since then we have developed a series of flour samples as well. The investigations of the long-term stability and the application of wheat and flour CRMs are continuous. Wheat is one of the most widely grown crops in Hungary and it is one of the major determining factors of the economy. Its uniform and objective qualification is of great importance. There are well-equipped laboratories available with sufficient experience but, as the proficiency testing regularly showed, certified samples need to be used to achieve exact and uniform measuring results.

Certified reference materials for the quality control of rare earth element determinations in the environment

2002 ◽  
Vol 21 (11) ◽  
pp. 762-773 ◽  
Author(s):  
Kees J.M Kramer ◽  
Edith P.M de Haan ◽  
Henk van het Groenewoud ◽  
Walter Dorten ◽  
Gerard N Kramer ◽  
...  
Keyword(s):  
Quality Control ◽  
Rare Earth ◽  
Rare Earth Element ◽  
Reference Materials ◽  
Earth Element ◽  
Certified Reference Materials

Certified reference materials (CRMs 479 and 480) for the quality control of nitrate determination in freshwater

The Analyst ◽  
1996 ◽  
Vol 121 (1) ◽  
pp. 83-88 ◽  
Author(s):  
Ph. Quevauviller ◽  
M. Valcárcel ◽  
M. D. Luque de Castro ◽  
J. Cosano ◽  
R. Mosello
Keyword(s):  
Quality Control ◽  
Reference Materials ◽  
Certified Reference Materials ◽  
Nitrate Determination
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