Elements of quality assurance system in nutrient and dissolved oxygen analyses

• Autorzy: Danowska B. , Drgas N. , Łysiak-Pastuszak E. , Piechowska B.
• Konferencja: "Oceanografhy from Theory to Practice". Conference held in Gdynia, Poland, on 14-16 June 2000 in celebration of the 70 th birthday of Professor Krzysztof Korzeniowski. Part 3
• Języki publikacji: EN

Abstrakty

EN

In 1994, the Environmental Committee of the Helsinki Commission recommended that all laboratories providing data within the monitoring programmes of the Baltic Sea (HELCOM BMP) and HELCOM CMP (HELCOM COMBINE since 1996) should implement quality assurance system in monitoring activities. Quality assurance system includes validation of applied analytical methods, that is evaluation of measurement errors (measurement uncertainty) under current laboratory conditions. Some elements of quality assurance system implemented at the Marine Chemistry Laboratory of the Institute of Meteorology and Water Management in Gdynia are presented regarding method validation, i.e. experimental determination of precision, bias and detection limit of analytical methods in use and experimental determination of measurement uncertainty related to sampling for nutrient analyses. Results of internal quality control are also presented as well as results of international analytical proficiency tests in which the laboratory participates as a form of external quality control.

Słowa kluczowe

EN

quality assurance; measurement uncertainty; nutrients; proficiency test

• Wydawca: Institute of Oceanography University of Gdańsk
• Czasopismo: Oceanological Studies
• Rocznik: 2000
• Tom: Vol. 29, No. 4
• Strony: 15--25
• Opis fizyczny: Bibliogr. 14 poz., tab., wykr.

Twórcy

autor

Danowska B.

• Institute of Meteorology and Water Management, Maritime Branch, al. Waszyngtona 42, 81-342 Gdynia, Poland

autor

Drgas N.

• Institute of Meteorology and Water Management, Maritime Branch, al. Waszyngtona 42, 81-342 Gdynia, Poland

autor

Łysiak-Pastuszak E.

• Institute of Meteorology and Water Management, Maritime Branch, al. Waszyngtona 42, 81-342 Gdynia, Poland

autor

Piechowska B.

• Institute of Meteorology and Water Management, Maritime Branch, al. Waszyngtona 42, 81-342 Gdynia, Poland

Bibliografia

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• [2.] Analytical Methods Committee, 1992, Proficiency testing of analytical laboratories: organisation and statiscal assessment, Analyst, 117, 97-104.
• [3.] Analytical Methods Committee, 1995, Uncertainty of measurement: implications of its use in analytical science, Analyst, 120, 2303-2308.
• [4.] Anonymous, 1996, ISO/IEC Guide 43-1, Proficiency testing by laboratory comparisons, Geneva.
• [5.] EURACHEM/WELAC (Cooperation for Analytical Chemistry in Europe/Western European Legal Metrology Cooperation), 1992, Information Sheet No. 1 (Draft): Guidance on the Interpretation of the EN 45000 series of Standards and ISO Guide 25, 27 pp.
• [6.] Doerfell K., 1989, Statistics for analytical chemists, WNT, Warszawa, 101, (in Polish).
• [7.] FINAS S39/1997, The expression of uncertainty in quantitative testing, EAL/G23. FINAS Akkreditointi, Suomi Finland, Helsinki.
• [8.] Grasshoff K., Ehrhardt M., Kremling K., (eds.), 1976, 1983, Methods ofsea water analysis, Verlag Chemie, Weinheim, 722 pp.
• [9.] ISO, 1995, Guide to the expression of uncertainty in measurement, Geneva, Switzerland, 25 pp.
• [10.] Kirkwood D., Aminot A., 1995, Report on the ICES fifth intercomparison exercise for nutrients in sea water, Coop. Res. Rep. No. 213, 79 pp.
• [11.] Kirkwood D., Aminot A., Perttiffi M., 1991, Report on the ICES fourth intercomparison exercise for nutrients in sea water, Coop. Res. Rep. No. 174, 83 pp.
• [12.] Lysiak-Pastuszak E., 1996, On quality assurance procedures in monitoring analyses of nutrients, Oceanol. Stud., 25(3), 3-13.
• [13.] Nehring D., 1994, Quality assurance of nutrient data with special respect to the HELCOM Baltic Monitoring Programme, Baltic Sea Environ. Proc. No. 58, HELCOM 1994, 5-22.
• [14.] Thompson M., Wood R., 1993, The international harmonised protocol for the proficiency testing of (chemical) analytical laboratories, IUPAC/ISO/AOAC, J. Pure Appl. Chem., 65, 2123-2144.